Large diameter steel pipe

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Large diameter steel pipe often refers to the out diameter with more than 1000mm. large diameter steel pipe use is generally more widely, generally used for large-scale pipeline projects, water gas engineering, pipe network construction of large projects.

Large diameter steel pipe production process is generally a result of these processes:

heating, piercing, bending, seam, weld inside and outside welding, straightening, flat top multi-channel processes, to achieve the American Petroleum Institute standards. Large diameter steel pipe used for large multi-building among the main supporting part to do, such as a bridge piling, underwater piling, piling high-rise buildings.
Welded staninless steel pipe
Our staff are qualified and certified according to all current welding procedures, thus guaranteeing our customers longitudinally welded stainless steel pipes in line with the requirements.
Large diameter alloy steel pipes
The range of Large diameter alloy steel pipes pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.
Coating solvent-free, no leaking substances, and thus will not contaminate the transmission medium, thus ensuring fluid purity and hygiene at -40 ℃ to +80 ℃ range can be used alternately hot and cold cycles, aging, no cracks, which can in cold areas such harsh environments.

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ASTM A335 Chrome Moly Pipe

Chrome Moly Pipe has become a standard in the power generation industry and the petrochemical industry, not only because of its tensile strength, corrosion resistance and high-temperature strength, but also because of its cost-effectiveness. Grades P-11, P-22 – P-91 & P-92 are prevalent grades for the power industry, while P-5 & P-9 are the grades utilized in major refinery processing. ASTM A335 P9 alloy steel pipe ASTM A335 P11 alloy steel pipe ASTM A335 P22 alloy steel pipe ASTM A335 P91 alloy steel pipe ASTM A335 P92 alloy pipes ASTM A335 P5 alloy steel pipe Sunny Steel Supply stocks a full range of the following A335 pipe grades: Main grades:  ASTM A335 P5, P9, P11, P-22, and P91 Size range: NPS 1/4'' to NPS 24'' Wall Thickness - Schedules 40 through 160, STD, XS, XXS. Unscheduled heavy wall pipe thicknesses available up
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Steel pipe world standards

Pipe manufacturing refers to how the individual pieces of pipe are made in a pipe mill; it does not refer to how the pieces are connected in the field to form a continuous pipeline. Each piece of pipe produced by a pipe mill is called a joint or a length (regardless of its measured length). In some cases, pipe is shipped to the pipeline construction site as “double joints”, where two pieces of pipe are pre-welded together to save time. Most of the pipe used for oil and gas pipelines is seamless or longitudinally welded, although spirally welded pipe is common for larger diameters. 1. Structural Steel Pipe: ASTM A53: GR.A, GR.B ASTM A106: GR.A, Gr.B, Gr.C GB/T 8162: 10#, 20#, 35#,45#, Q345A, Q345B, A345C, Q345D, Q345E, 20Cr, 40Cr, 20Mn2, 45Mn2, 40CrB, 27SiMn, 15CrMo, 20CrMo, 35CrMo, 42CrMo ASTM A519: 1020, 1035, 1045, 4130, 4140 DIN1629: St37.0, St44.0, St55, St52.0 DIN17175: St35.8, 17Mn4, 13CrMo44 EN10297: E355, C45, 34CrMo4 JIS G3441: SCM 420TK, SCM440TK JIS G3445: STKM13A, STKM1
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ASTM A333 Grade 6 Seamless Pipe

ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. Spec. Grade O.D W.T Length pcs Unit QTY ASTM A333 GR.6 88.90 4.00 6000-12000 15 T 1.3350 ASTM A333 GR.6 114.30 6.00 6000-12000 12 T 1.6980 ASTM A333 GR.6 114.00 7.00 6000-12000 3 T 0.5050 ASTM A333 GR.6 114.30 8.00 6000-12000 5 T 1.1050 ASTM A333 GR.6 114.30 12.00 6000-12000 2 T 0.6500 ASTM A333 GR.6 168.30 7.11 6000-12000 8 T 2.3380 ASTM A333 GR.6 168.30 7.11 12000 3 T 1.0320 ASTM A333 GR.6 168.30 7.11 6000-12000 4 T 1.2960 ASTM A333 GR.6 219.10 12.70     T 3.1820 ASTM A333 GR.6 323.80 9.53     T 1.9030 ASTM A333 GR.6 323.80 10.31     T 0.4560 ASTM A333 GR.3 48.30 5.08 6000-12000 22 T 1.3480 ASTM A333 GR.3 60.30 3.91 10300 18 T 1.0420 ASTM A333 GR.3 60.30 5.54 11800 17 T 1.5060 ASTM A333 GR.3 60.30 5.54 10500 4 T 0.3180 ASTM A333 GR.3 88.90 5.49 8600 8 T 0.7920 ASTM A333 GR.3 88.90 5.49 6000-12000 8 T 0.8360 ASTM A333 GR.3 114.30 6.02 6000-120
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ASTM A106 Seamless carbon steel tube for high temperature service

ASTM A106 Seamless carbon steel tube for high temperature service Description: standards: ASTM A106 (ASME SA106) products mainly used: apply to bending, curling and similar forming process. the main products of steel / steel grade: Gr.A; Gr.B; Gr.C. Specifications: diameter: 10.3 to 114.3 mm thickness: 0.8 to 12 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe. Chemical composition and mechanical properties JIS Number and Corrensponding Foreign Standards ASTM A106 Gr.B Pipes ASTM A106 / A106M - 11 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service Tubes for Fluid Our fluid seamless steel tubes are widely used for fluid transport, oil and natural gas long distance transmission as well as fluids. ASTM A106 (ASME SA106) Scope: This specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 incl
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Orifice Flanges

Orifice flange for run installation should be so constructed, machined and attached to the that the inner surface of the passage extends through the orifice flange so that there is no recess at the orifice plate. Orifice flanges are used instead of the standard pipe flanges when orifice plate or flow nozzle is used. The basic purpose for this is to measuring the flow rate of either gases or liquids in the respective pipeline. These flanges are used in various industrial applications and are available in various sizes and materials. Orifice Flange manufacturer Sunny Steel supplies Orifice Flanges, Plate Flanges, Datasheets and dimensional information ANSI 300 Flange - Orifice, Weld Neck, ANSI Class 300, B16.36 (in) ANSI 400 Flange - Orifice, Weld Neck, ANSI Class 400, B16.36 (in) ANSI 600 Flange - Orifice, Weld Neck, ANSI Class 600, B16.36 (in) ANSI 900 Flange - Orifice, Weld Neck, ANSI Class 900, B16.36 (in) ANSI 1500 Flange - Orifice, Weld
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ASTM A213 T22 alloy tube

ASTM A213 T22 is the part of ASTM A213 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, Heat-Exchanger Tubes. We are manufacturer of ASTM A213 T22 alloy tube and supply high quality ASTM A213 T22 alloy tube in both large and small quantities worldwide and offer you the best prices in the market. ASTM A213 T22 Standard covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. + SA 213-T22 u-bended tube Grades containing the letter H in their designation have requirements different from those of similar grades not containing the letter H. These different requirements provide higher creep-rupture strength than normally achievable in similar grades without these different requirements. ASTM A213 T22 tubes shall be made by the seamless process and shall be either hot finished or cold finished, as specified. Grade TP347HFG shall be cold finished. Heat treatment shall be done separately and
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Tubing, Casing and Line Pipes

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Seamless Steel Pipe and Tubes

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ASTM A335 P22 alloy steel pipe

ASTM A335 P22 alloy steel pipe with addition of chromium, molybdenum, and sometimes vanadium. Chromium, or chrome, improves high-temperature strength, increases oxidation resistance and raises the tensile, yield and hardness at room temperatures. Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices. Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test. Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting. Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested. A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as
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Difference between ERW, SSAW, LSAW

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