Alloy pipe

 Structural Tubing is for high stress structural application like bridges, buildings, roll cages, and underwater platforms with wall thickness from 3/16" and up. It is often referred to as Hollow Structural Sections or just the acronym HSS. Production Range OD: 42mm-760mm WT: 4mm-120mm Standard and Steel Grade GB/T 8162 GB/T 17396 or technical agreement. Usage OD(mm) WT(mm) Steel Grade Standard/ Specification Aplication Fields  Structural Pipe 42-760 4-120 20#,35#,45#,Q345A/B/C/D,Q390, Q420,25Mn,27SiMn etc. GB/T 8162 General structural and mechanical pipe Vehicle Pipe 45-245 4-35 20Mn2,SAE1527,MZ410R, MZ530R,30Mn2,40Cr,45Mn2 etc. Technical agreement, YB/T5035 Pipe used for automobile axle and automobile semi-shaft Mold Pipe &Tube DN200-DN1200 　 21CrMo10,21CrMo10-2 etc. Q/OHAD030, technical agreement Centrifugal graphite casting-iron pipe mold Military Pipe 42-760 4-120 30Cr,40Cr,35CrNi1MoA etc. National military standard, agreement Pipe for military use Geology Drilling Pipe &

  High strength cylinder pipe has high strength & tenacity, brittle fracture resistance and good weldability. S700 and S890 high strength cylinder pipes also have good hardenability and uniform performance after heat treatment. They are especially suitable for manufacturing high strength cylinders with large OD, medium & large wall thickness. Application Fields High strength cylinder pipe are mainly used for hydraulic support of coal collection face, hydraulic cylinder, engineering machinery, ship lock and offshore platform etc. Production Range OD: 42mm-760mm WT: 4mm-120mm Standard and Steel Grade GB/T 8162 GB/T 8163 GB/T 17396 or technical agreement. Requirements for Mechanical Properties Steel Grade Delivery Condition Tensile Yield Elongation R.A. Absorbed-engergy (MPa) (MPa) (%) (%) (J) Not Less Than 27SiMn Quenching+Tempering 980 835 12 40 20℃(AKU2) 39 30CrMnSiA Quenching+Tempering 1080 835 10 35 20℃(AKU2) 39 30CrMoA Quenching+Tempering 930 735 12 50 20℃(AKU2) 71 20MnTiB Q

  Cylinder pipe are mainly applied in hydraulic driving equipment (including hydraulic and pneumatic steel cylinder, hydraulic support, oil-well pumping barrel, and etc.) used for the manufacturing of vehicle, engineering machinery, lifting and transportation machinery and other machinery. Liquid steel has high purity, excellent geometrical dimension and good performance for processing. Properties of Steel Pipe Steel Grade Tensile Yield Elongation Absorbed-energy (MPa) (MPa) (%) (J) Not Less Than 20 410 245 25 — — 45 600 355 16 20℃(AKV2) 39 Q345B 470-630 345 20 20℃(AKV2) 34 Q345D 470-630 345 21 -20℃(AKV2) 34 25Mn 490 295 22 20℃(AKU2) 71 E355 490-650 355 21 -20℃(AKV2) 27 27SiMn 980 835 12 20℃(AKU2) 39 E470/20MnV6 650 470 17 -20℃(AKV2) 27 Production Range O.D:42mm-760mm WT: 4mm-120mm Standard and Steel Grade Technical standards related to material: GB/T699, GB/T3077, EN10210, EN10297. Applicable technical standards for seamless pipe: GB/T8162, Q/OHAD032 or technical agreement.

  Properties of Steel Pipe Steel Grade Yield（MPa） Tensile Elongation Hardness （Mpa） （%） (HRC) 45Mn2 — — — HRC≥50 Hot rolling delivery, HRC should be more than or equal to 50 after heat treatment HS-1 — — — HRC≥55 Hot rolling delivery, HRC should be more than or equal to 55 after heat treatment 65Mn — — — HRC≥58 Hot rolling delivery, HRC should be more than or equal to 58 after heat treatment H65 — — — HRC≥60 Hot rolling delivery, HRC should be more than or equal to 60 after heat treatment NM50 ≥420 ≥750 ≥14% HRC≥50 HRC should be more than or equal to 50 after heat treatment NM55 ≥450 ≥780 ≥13% HRC≥55 HRC should be more than or equal to 55 after heat treatment NM60 ≥530 ≥880 ≥12% HRC≥60 HRC should be more than or equal to 60 after heat treatment NM62 ≥550 ≥990 ≥12% HRC≥62 HRC should be more than or equal to 62 after heat treatment Production Range OD: 42mm-760mm WT: 4mm-120mm Steel Grade Technical standard: GB/T 8162, GB/T 33966, GB/T 8163 or technical agreement. Application Fields It i

  Pipes used for petroleum mechanical processing are the necessary materials for oil exploration equipment, well-drilling equipment, machinery oil recovery equipment, facilities and accessories for oil drilling & recovery as well as integrated equipment of petroleum & natural gas collection and transmission. Our manufactory has successfully developed petroleum mechanical processing pipe with steel grade 55ksi-135ksi on its own, which has both good strength and good tenacity, uniform performance of whole wall thickness and excellent processing performance. Production Range OD: 42mm-760mm WT: 4mm-120mm Steel Grade and Properties Applicable specification: API 5CT, ASTM A519, NACE MR0175, GB/T 8162 or user’s agreement. Steel Grade Properties of Steel Pipe Yield Tensile Elongation Hardness Absorbed-energy （MPa） （Mpa） （%） (HRC) (AKV2/J) 55ksi 379-552 ≥ 655 ≥16 — Implement  in accordance with API 5CT Specification 80ksi 552-655 ≥ 655 ≥ 16 ≤ 23.0HRC 95ksi 655-758 ≥ 724 ≥ 15 ≤ 25.4HRC 1

  Cryogenic piping refers to systems that are used in a wide range of industrial applications that require extremely low temperatures, generally around -300°F (150°C) or lower. Due to such low temperatures, cryogenic pipes face unique corrosion and deterioration challenges. Cyrogenic piping is also referred to as cold piping. Implement specifications such as ASME SA-333M, GB/T18984. The seamless steel tubes are applied for low temperature pressure vessel pipeline and low temperature heat exchanger pipeline. Usage Specification Steel Grade Seamless and Welding Nominal Pipe used for Low Temperature ASME SA -333M Gr.3, Gr.6, Gr.8 and so on Seamless Steel Pipe used for Low Temperature Pipeline GB/T18984 16MnDG, 06Ni3MoDG, 06Ni9MoDG and so on ASTM A333 (ASME S/A-333) Pipe grades permit low temperature service.  Mechanical requiremnts of ASTM A333 alloy pipe Grade Tensile Strength (MPa） Yield Point (MPa) Elongation (%) Y X Grade 3 ≥450 ≥240 ≥30 ≥20 Grade 6 ≥415 ≥240 ≥30 ≥16.5 Grade 8 ≥690 ≥5