Tubacero Highlights 350,

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3 Tubacero Highlights Installed rated capacity: 350,000 metric tons per year throughout 5 plants covering 4.7 million sq. ft. Products: Straight longitudinally welded carbon steel pipe, ranging from to 150 outside diameter, and wall thicknesses from to 2.5, and API steel grades up to X-80 PSL2. Automated continuous high frequency electric resistance ERW (HFW) and submerged arc welding SAW (SAWL) processes. Customized pipes manufactured to meet all international quality standards, as requested by customer.

4 Who we are Founded in Monterrey, Mexico, nearly seven decades ago, Tubacero is a private world-class, 100% Mexican company and a leading manufacturer of straight longitudinally welded carbon steel pipe. We are very proud of our technical capability and the expertise of our management and employees. We are committed to meeting all our customers priorities and complying with all environmental and social responsibility regulations. Our aim is to serve the needs of the oil, water supply, electric power, mining, and construction industries. We are capable of meeting the most stringent specifications regulating the fluids, solids, and semi-solids conduction businesses, and particularly those pertaining to sour hydrocarbons. TUBACERO is the only company in the world capable of manufacturing 30-inch diameter API pipes, with longitudinal high frequency electric resistance welding ERW (HFW).

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7 Products & Services l l l l l l l l l l l l l Line pipe for sour and non-sour hydrocarbon transportation. Casing pipes up to 30 inches diameter for oil wells. Water line pipes (Aqueducts). Special alloy pipes for highly abrasive fluids. Offshore platform pipes for substructures and superstructures. Conduit pipes for protecting electrical and highvoltage cables. Water pump tower piping. Tubular struts and sieves for deep-water wells. Piling pipe for bridges, ports, and buildings. Special Products: structures, hoppers, fuel/gas storage tanks. Internal and external coatings for pipe corrosion protection, such as, Fusion Bonded Epoxy (FBE), 3-Layer Polyethylene (3LP) and 3-Layer Polypropylene (3LPP). Concrete weight coated pipes for offshore lines in swamplands and eroding environments. Technical customer support for product specifications and features.

8 Manufacturing Process Reception and storage of raw materials in the form of steel sheet coils or steel plates. Mechanical expansion. Ultrasonic inspection. Outside Submerged Arc Welding process (SAWL). Hydrostatic testing. X-ray inspection on both ends of the pipes. Final full-length ultrasonic inspection.

9 Plate or coil feeding station. Continuous cage forming. High-frequency electric resistance welding ERW (HFW). Inside Submerged Arc Welding process (SAWL). Pipe output at the mill. Pipe-end beveling for field welding. Visual and dimensional inspection for final approval. Marking.

10 Our Quality is our Hallmark The Tubacero quality concept is part and parcel of our everyday work life. Therefore, we can guarantee and certify that our product and service lines rigorously meet the specifications governing the industries we serve. This quality approach has always been a prime factor for us. We have held API-5L and API-5CT licenses since Currently, Tubacero is a member of the Technical Committee of the American Petroleum Institute (API). Our labs have all the analysis and testing equipment required to certify our products. In 1989, Tubacero was certified API Q1 by the American Petroleum Institute, and in 1993 became the first manufacturer of pipe with straight longitudinal seam welding to attain ISO-9002 certification in the Americas. Currently, we are ISO 9001:2008 certified and licensed to use the API monogram for API SPEC 5L and API SPEC 5CT. We rank as a reliable supplier to the major oil companies across the world.

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12 Raw materials and shipping operations To expedite raw material receiving and finished product shipping out of Plants I, II, and III, our infrastructure includes a 11,725 foot railway and spurs with a total capacity for 166 (57-foot) cars. A similar railway and spurs serve Plant IV, with a receiving capacity for 32 cars. Our storage facilities can accommodate approximately 50,000 metric tons of raw materials and 80,000 metric tons of finished goods. Our capacity for unloading raw materials is 20 gondolas or flat cars and 40 trucks per day, with a 1,200 metric ton capacity in each case.

13 COAHUILA NUEVO LEÓN ESTADOS UNIDOS Nuevo Laredo Monterrey Brownsville TAMAULIPAS Tampico SAN LUIS POTOSÍ GOLFO DE MÉXICO Our finished product loading equipment includes: Front loaders with 20,000 and 30,000 pound capacities, respectively. Hydraulic cranes with 360 rotation with a 22,000-pound capacity each. Mechanical cranes with 360 rotation and a 22,000-pound capacity. Overhead crane with a 44,000-pound capacity. A locomotive with 1,800 metric ton dragging capacity. A trackmobile with 250 metric ton dragging capacity. Our daily finished product loading capacity is 10 gondolas or flat cars and 40 trucks, for an overall cargo 2,400 metric ton capacity. Tubacero s plants are strategically located to receive raw materials and ship finished products to and from: Nuevo Laredo, Tamaulipas: 143mi by road or 165mi by railway. Brownsville TX: 213mi by road or 220mi by railway. Tampico, Tamaulipas: 329mi by road or 323mi by railway.

14 MILL I, II, III THICKNESS in. mm in. mm. 6 5/ / / / / / ERW ERW / SAW SAW Longitud: Up to 60 foot Up to 50 foot Up to 50 foot MILL V THICKNESS in. mm in. mm FOOT 10 FOOT 20 FOOT UP TO 9 FOOT

15 NORM Title and Grade API 5L Line Pipe grade A up to X-70 PSL 1 and B up to X-80 PSL 2 5CT Casing and Tubing group I, H40, J55 y K55 2B Specification for the Fabrication of Structural Steel Pipe ASTM A 53 Welded and Seamless Steel Pipe. A 134 Electric Fusion (Arc) Welded Steel Pipe (NPS 16 and over). A 135 A 139 NORMS AND SPECIFICATIONS Under which Tubacero manufactures its products Electric Resistance-Welded Steel Pipe. Electric Fusion (Arc) Welded Steel Pipe (NPS 4 and over). A 523 Plain End Seamless and Electric-Resistance Welded Steel. Pipe for High-Pressure Pipe-Type Cable Circuits. A252 Welded and Seamless steel Pipe Piles. A 500 Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes. A 672 Standard Specification for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperature. NMX B 10 Carbon steel pipe welded or seamless, black and hot-dipped zinc coated (galvanized), for ordinary uses (ASTM A 120). B 177 Carbon steel pipe welded or seamless, black and hot-dipped zinc coated (ASTM A 53). B 182 Electric-fusion (Arc)-welded steel pipe nominal size 16 in. and over (ASTM A 134). B 183 Electric-fusion (Arc)-welded steel pipe nominal size 4 in. and over (ASTM A 139). B 184 Electric-resistance-welded steel pipe (ASTM A 135) B 198 Welded and seamless steel pipe piles (ASTM A 252) B 199 Cold-formed welded and seamless carbon steel structural tubing in rounds and shapes (ASTM A 500). B 205 High pressure electric resistance welded and seamless steel pipe for electrical line protection. AWWA C 200 Steel Water Pipe 6 inches and larger CSA Z Steel Line Pipe Tubacero can manufacture pipes under other specifications by previous agreement. E.g., Pemex s steel line pipe specification NRF-001-PEMEX for sour hydrocarbon transmission, grades L360 (X52), L415 (X60) and L450 (X65). API American Petroleum Institute ASTM American Society for Testing and Materials NMX Mexican Norm CSA Canadian Standards Association technical section

16 ADVANTAGES OF STEEL PIPE USE Tensile Resistance Steel pipes generally support work efforts on wall thickness by 1,000 to 2,000 kg/cm2, allowing higher diameter/thickness ratio, normally greater than 100. Compression resistance is similar to tension resistance. In-Service Life According to statistical references, there are steel pipe lines installed with in-service life expectancy between 80 and 100 years. It is essential to assess the project compared to other materials. Cost Regarding the pipe it is necessary to assess the initial total cost, taking into account the stroke, complementing it with the in-service life. Steel pipe installation costs are lower due to its lower weight provides more agile maneuver, ditches are narrower and time is shorter due to fewer amount of field joints. Another advantage is that maintenance is easier and faster and therefore more economic. Transmission Capacity Steel pipes transmission capacity increases depending on increment of speed/pressure ratio in operation. As an example, the Mina Monterrey aqueduct was installed in 1954 with a transmission capacity of 750 L/sec.; However, needs forced to operate it until 1980 with a capacity of 1,200 L/sec. Steel Ductility Steel pipe accepts high deformation without fracturing adapting it to terrain topography, saving length. We can say that the steel pipe is ideal for use in seismic areas. Emergency Conditions Steel pipe has great resistance to withstand impact, vibration, mudslides, blows battering ram, etc. Supported in stairways can be installed in a big open landscape. Hermetic Joints Due to steel pipe joints are made on field through welding jointing, it s fully hermetic condition is achieved to eliminate leakage of transmission line.

17 Outside diameter mm Schedule Standard Extra Strong Outside diameter Inches EQUIVALENCES TO IDENTIFY PIPE SCHEDULES BY THICKNESS Schedule Standard Extra Strong technical section

18 API SPECIFICATION 5L CHEMICAL REQUIREMENTS FOR HEAT ANALYSIS (MASS FRACTION, %) Grade Carbon Silicon Manganese Fosforus Sulphur Niobium Vanadium Titanium Other Carbon equivalent Maximum Maximum Maximum a Maximum Maximum Maximum Maximum Maximum maximum % Product specification level PSL 1 CEIIW CEPCM L210 or A 0,22-0,90 0,30 0, L245 or B 0,26-1,20 0,30 0,30 b, c b, c c L290 or X42 0,26-1,30 0,30 0,30 c c c L320 or X46 0,26-1,40 0,30 0,30 c c c L360 or X52 0,26-1,40 0,30 0,30 c c c L390 or X56 0,26-1,40 0,30 0,30 c c c L415 or X60 0,26 d - 1,40d 0,30 0,30 e e e L450 or X65 0,26 d - 1,45d 0,30 0,30 e e e L485 or X70 0,26 d - 1,65d 0,30 0,30 e e e Product specification level PSL 2 L245M or BM 0,22 0,45 1,20 0,025 0,015 0,05 0,05 0,04 f 0,43 0,25 L290M or X42M 0,22 0,45 1,30 0,025 0,015 0,05 0,05 0,04 f 0,43 0,25 L320M or X46M 0,22 0,45 1,30 0,025 0,015 0,05 0,05 0,04 f 0,43 0,25 L360M or X52M 0,22 0,45 1,40 0,025 0,015 c c c f 0,43 0,25 L390M or X56M 0,22 0,45 1,40 0,025 0,015 c c c f 0,43 0,25 L415M or X60M 0,12 0,45 1,60 0,025 0,015 e e e g 0,43 0,25 L450M or X65M 0,12 0,45 1,60 0,025 0,015 e e e g 0,43 0,25 L485M or X70M 0,12 0,45 1,70 0,025 0,015 e e e g 0,43 0,25 L555M or X80M 0,12 0,45 1,85 0,025 0,015 e e e h 0,43i 0,25 a: For each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum of 1,65 % for grades L245 or B, but L360 or X52; up to a maximum of 1,75 % for grades > L360 or X52, but < L485 or X70; up to a maximum of 2,00 % for grades L485 or X70, but L555 or X80; and up to a maximum of 2,20 % for grades > L555 or X80. b: The sum of the niobium (columbium) and vanadium shall be 0,06 %. (1) c: The sum of the niobium (columbium), vanadium and titanium shall be 0,15 %. d: (1) e: The sum of the niobium (columbium), vanadium and titanium shall be 0,15 %. (1) f: 0,50 % maximum for copper, 0,50 % maximum for cromium and 0,50 % maximum for molibdenum. (1) g: 0,50 % maximum for copper, 0,050 % maximum for nickel, 0,50 % maximum for cromium and 0,50 % maximum for molibdenum. (1) h: 0,50 % maximum for copper, 1,00 % maximum for nickel, 0,50 % maximum for cromium and 0,50 % maximum for molibdenum. (1) (1) Unless otherwise agreed.

19 TENSILE TEST REQUIREMENTS Grade Yield strength a, b MPa (psi) Tensile strength b Minimum Maximum Minimum Maximum Product specification level PSL 1 L210 ó A 210 (30 500) (48 600) - L245 ó B 245 (35 500) (60 200) - L290 ó X (42 100) (60 200) - L320 ó X (46 400) (63 100) - L360 ó X (52 200) (66 700) - L390 ó X (56 600) (71 100) - L415 ó X (60 200) (75 400) - L450 ó X (65 300) (77 600) - L485 ó X (70 300) (82700) - Product specification level PSL 2 L245M ó BM 245 (35 500) 450 (65 300) 415 (60 200) 760 ( ) L290M ó X42M 290 (42 100) 495 (71 800) 415 (60 200) 760 ( ) L320M ó X46M 320 (46 400) 525 (76 100) 435 (63 100) 760 ( ) L360M ó X52M 360 (52 200) 530 (76 900) 460 (66 700) 760 ( ) L390M ó X56M 390 (56 600) 545 (79 000) 490 (71 100) 760 ( ) L415M ó X60M 415 (60 200) 565 (81 900) 520 (75 400) 760 ( ) L450M ó X65M 450 (65 300) 600 (87 000) 535 (77 600) 760 ( ) L485M ó X70M 485 (70 300) 635 (92 100) 570 (82 700) 760 ( ) L555M ó X80M 555 (80 500) 705 ( ) 625 (90 600) 825 ( ) a: Calculated with the method of 0,5 % extention under load (EUL). b: For Si units, the calculated value shall be rounded to the nearest 5 MPa. For USC units, the calculated value shall be rounded to the nearest 100 psi. technical section

20 STANDARD ASTM VOLUME Chemistry requirements for heat analysis (mass fraction, %) Minimum Yield Strength Designation C Mn P S Cu Ni Cr Mo V PSI MPa Kg/ mm2 A 53 Minimum Tensile Strength PSI MPa Kg/ mm2 Elongation ( % E) minimum in 2 in. A a 0.40 a 0.40 a 0.15 a 0.08 a 30, , B a 0.40 a 0.40 a 0.15 a 0.08 a 35, , A Properties meeting original raw material (plate or coil) A 135 A , , E=56T d 35 f B , , E=48T d 30 f A , , E=56T d 35 f B , , E=48T d 30 f A 139 C , , E=40T d 25 f D , , E=48T d 23 f E , , E=64T d 22 f A 523 A , , E=56T d 35 f B , , E=48T d 30 f , , E=48T d 30 f A , , E=40T d 25 f , , E=32T d 20 f A c , , E=56T d 25 g A 500 B b , , E=61T d 23 h C b , , E=21 21 i D b , , E=61T d 23 g a.- Combination of elements shall not exceed 1.00%. b.- Minimum value when copper element is specified. c.- The minimum elengation in 2 in. (50,8 mm) shall be determined using the following equation: Using USC units E = 625,000 A 0.2 Using SI units E = 1940 A 0.2 U 0.9 U 0.9 Where E = Minimum elongation in 2 in. (50,8 mm) in percent rounded to the nearest 1/2 percent. A = Is the applicable tensile test piece cross-sectional area expressed in square inches (square millimetres) based in the specified outside diameter or in the test piece with nominal width and specified wall thickness, rounded to the nearest value. U = Specified minimum tensile strength in PSI or MPa. a = Elongation in 2 in. (50.8 mm), percentage. t = Specimen thickness in inches or millimetres. d.- Applied in wall thickness over 3.5 mm (0.138 in.). Elongation lower for thickness shall be agreed between manufacturer and purchaser. e.- For wall thickness 5/16 in. (7.9 mm) and over. f.- For wall thickness of in. (3.0 mm) and over. For lower thickness use formula g.- For wall thickness in. (2.7 mm) and over. For lower thickness use formula. h.- For lower thickness by agreement.

21 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI /8 OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI / technical section

22 HYDROSTATIC STANDARD PRESSURE OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI /

23 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI / technical section

24 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI /

25 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI / technical section

26 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI

27 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI technical section

28 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI

29 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI technical section

30 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI

31 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI technical section

32 HYDROSTATIC STANDARD PRESSURES OUTSIDE WALL THIKNESS THEORETICAL WEIGHT HYDROSTATIC TEST PRESSURE ASTM API Spec 5L API Spec 5CT mm in. mm in. Kg / m Lb / Ft A 53 A A 53 B B X - 42 X - 46 X - 52 X - 56 X - 60 X - 65 X - 70 X - 80 H40 J55 K55 MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI MPa PSI

33 MULTIPLY BY TO OBTAIN Meters Foot Meters Inches Meters Yard Meters Varas Square Meters Square Foot Square Meters Square Yard Cubic Meters Cubic Foot Cubic Meters Cubic Yard Millimeters x 10-3 Foot Millimeters xx 10-2 Inches Square Millimeters x 10-3 Square Inches Miles Kilometers Miles Nautical Miles Square Mile Hectares Square Mile Square Kilometers Nautical Mile Foot Nautical Mile Kilometers Nautical Mile Miles Foot Centimeters Foot Meters Foot Millimeters Foot x 10-4 Nautical Mile Square Foot x 10-4 Are Square Foot x 10-5 Hectares Square Foot Square Meters Cubic Foot x 10-4 Cubic Centimeters Cubic Foot x 10-2 Cubic meters Cubic Foot British Imperial Gallon Cubic foot Liter Cubic foot British Tons Shipping Cubic foot U.S. Tons Shipping Inches Centimeters Inches x 10-2 Meters Inches Millimeters Square inches Square Centimeters Square inches Square Millimeters Cubic inches Cubic Centimeters Cubic inches Cubic Centimeters Radian Mil (angle) American Cement Bag Kilograms American Cement Bag 94 Pounds American Cement Bag 50 Kilograms Long Tons Kilograms Long Tons Pounds Long Tons Metric Tons Long Tons Short Tons Long Tons per Square Foot x 104 Kilograms per Square Meter Long Tons per Square Inch Kilograms per Square Millimeter Short Tons Kilograms Short Tons Long Tons Short Tons Metric Tons Metric Tons Pounds Metric Tons Long Tons Metric Tons Short Tons British Tons Shipping U.S. Tons Shipping British Tons Shipping Cubic foot U.S. Tons Shipping British Tons Shipping U.S. Tons Shipping Cubic foot Acres Hectares Acres x 10-3 Square Kilometers Acres Square foot technical section

34 MULTIPLY BY TO OBTAIN U.S. Cement Barrel 376 Libras U.S. Cement Barrel Kilograms Petroleum Barrel 42 U.S. Gallons Petroleum Barrel 159 Liters Horsepower (Metric) Horsepower Horsepower Horsepower (Metric) Degree Centigrade Degree Fahrenheit Centimeters x 10-2 Foot Centimeters.3937 Inches Square Centimeters.1550 Square inches Cubic Centimeters x 10-3 Cubic foot Cubic Centimeters x 10 2 Cubic inches U.S. Gallons British Imperial Gallons U.S. Gallons Liters British Imperial Gallons Cubic foot British Imperial Gallons U.S. Gallons British Imperial Gallons Liters Mil (Angle) Radians Degree Fahrenheit.5556 x ( F-32 ) Degree Centigrade Grams (Metric) x 10-3 Pounds Avoirdupois Hectares Acres Hectares x 10-3 Square foot Hectares x 10-3 Square mile Kilograms Pounds Kilograms x 10-4 Long Tons Kilograms x 10-3 Short Tons Kilograms-Meters Foot Pounds Kilograms-Centimeters Yard Pound Kilograms per Meter Foot Pounds Kilograms per Meter Foot Pounds Kilograms per Square Centimeter Pound per Square Inch Kilograms per Square Meter Pounds per Square Foot Kilograms per Square Meter x 10-5 Long Ton per Square Foot Kilograms per Square Millimeter Pounds per Square Inch Kilograms per Square Millimeter Long Tons per Square Inch Kilograms per Cubic Meter x 10-2 Pounds per Cubic Foot Kilometers Miles Kilometers Nautical miles Square Kilometers Acres Square Kilometers Square miles Pounds Avoirdupois Grams Pounds Avoirdupois Kilograms Pounds Avoirdupois x 10-4 Long Tons Pounds Avoirdupois x 10-4 Metric Tons Foot Pounds Kilograms-Meters Inch Pounds Kilograms-Centimeters Pounds per Foot Kilograms per Meter Pounds per Yard Kilograms per Meter Pounds per Square Foot Kilograms per Square Meter Pounds per Cubic Foot Kilograms per Cubic Meter Pounds per Square Inch x 10-2 Kilograms per Square Centimeter Pounds per Square Inch x 10-4 Kilograms per Square Millimeter Liters British Imperial Gallons Liters U.S. Gallons Liters x10-2 Cubic foot WOOD: Yard Meters Square Yard Square Meters Cubic Yard Cubic meters Varas 0.84 Meters

35 anexo técnico

36 TUBACERO HQ AND MANUFACTURING FACILITIES Av. Guerrero 3729 Nte. Col. del Norte Monterrey, N.L. C.P Switchboard: +52 (81) Sales: +52 (81) Fax: +52 (81) TUBACERO MEXICO CITY Melchor Ocampo 193 Torre A Segundo Piso Galerías Col. Verónica Anzures Delegación Miguel Hidalgo México, D. F. C.P Ph: +52 (55)