API series steel pipes, alloy pipes for power plants, large-diameter thick walled seamless pipes, corrosion-resistant steel pipes for offshore platforms and FPSOs, weather resistant steel pipes and supporting fittings for railways and special fields, and various special specifications of large-diameter thick walled square and rectangular pipes can be customized according to customer provided blueprints.
Details of specific materials and matching fittings available
Structural steel：10 #, 20 #, 35 #, 45 # Q390、Q345、20Cr、40Cr、27SiMn、15CrMo、20CrMo、35CrMo、42CrMo、20CrNiMo、20CrMnMo、40CrMnMo、40CrNiMo、30CrMnSiA According to the GB/T8162 standard, 1020, 1035, 1045, 4130, 4140 and other standards shall comply with ASTM A519.
Fluid pipes: 10, 20, 35, 45, Q345B, etc. comply with the GB/T3639 standard. The standards for A and B are ASTM A53M
Precision tubes: 10, 20, 35, 45, Q345B, etc. comply with GB/T3639, St35, St45, St52, etc. comply with DIN 2391-2
Non alloy structural pipes: S275JOH, S275J2H, S355JOH, S355J2H, etc. comply with the EN 10210 standard
Hydraulic support pipe: 20, 35, 40, 27SiMn, etc. The implementation standard is GB/T 17396 Q/OHAD010-1998
Geological drilling pipes: DZ40, DZ50, DZ55, DZ60, STM-R780, etc. The execution standard is YB/T5052 Q/OHAD006-2009
Automotive half axle sleeve: 45, 45Mn2, 40MnB, 40Cr, etc. The implementation standard is YB/T5035 Q/OHAD001-1997
Automotive axle pipe: 20Mn2 and other standard technical agreements
Crane arm bracket pipes: HSM450, HSM770, HSM890, etc. comply with standard Q/OHAD015-2008
Hollow core rod tube: 42CrMo, 30Cr3MoV, etc. Follow standard Q/OHAD002-2010
Tube mold tube: 21CrMo10 and other standard technical agreements are implemented
High end building pipes: Q345, Q390, Q420, etc. comply with standard technical agreements
Pumping pipes: 20, Q345B, 45Mn2, etc. comply with the standard technical agreement Q/OHAD 031-2013
Cold drawn oil cylinder tubes: 20, 45, 25Mn, Q345B, Q345D, 27SiMn, 20MnTiB, 26MnNbTi, etc. The execution standard is technical agreement Q/OHAD 031-2013
Rotary drilling pipe: 35CrMo and other execution standards are technical agreements
Drilling pipe: API 5L X60 、API 5L A25、API 5L A、API 5L B、API 5L X42、API 5L X46、API 5L X52、API 5L X56、API 5L X65、API 5L X70、API 5L X80、API 2H Gr50/Gr60
According to national standards, metallurgical standards, American ASTM, ASME, Japanese JIS, German DIN, French NF, British BS, European EN, national ISO standards, etc; Capable of implementing testing standards in China (JB4730, GB/T2970), the United States (A435, A577, A578), Japan (JISG0801, JISG0901), Germany (SEL072), the United Kingdom (BS5996), France (NFA04-305), European standards (EN10160), etc; We can provide certification from nine classification societies, including ABS in the United States, BV in France, LR in the United Kingdom, GL in Germany, DNV in Norway, RINA in Italy, NK in Japan, CCS in China, and KR in South Korea.
The company has long provided high-quality goods and services to large shipyards such as Hudong, Dachuan Group, China Merchants Heavy Industry, Chengxi, and Waigaoqiao.