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Medium-Thick-Wall Seamless Steel Pipe

  CITIC Special Steel has possessed many sets of ASSEL pipe rolling mill units, of which 460 mill unit is the largest- calibre ASSEL pipe rolling mill unit in the world.The annual production capacity of the base is 800,000 tons. The products are widely used in the fields of national defense, aerospace & aviation, machinery manufacturing, automobile manufacturing, railway transportation, petrochemical industry and high pressure boilers so that a strategic group of industries/varieties with high-precision machined pipes, high-grade quenching & tempering pipes, high-alloy oil pipes, high-grade boiler pipes, long-life wear-resistant pipes and high-quality pin sleeves has been formed.   The main customers cover such domestic and overseas enterprises as Grant, Smith, Baker Hughes, Heyuan Alloy,Zhengzhou Coal Mining Machinery, Beijing Coal Mining Machinery,Daqing Oilfield,Baker Hughes,Weatherford, Caterpillar and Atlas, etc.

Type

Executive standards

Typical steel grades

Product specification

Machining pipe

EN, DIN, JIS, GB or User Agreements & Standards

S355J2H、P355、E355、20MnV6、E470、20-45、

1E2892、S40CBM、SCr440B、SCM415、SCM440

Φ51~533X4~130

Special pipes for automobile

ASTM or User Agreements & Standards

20Mn2(A)、1045、20MnV6、E500、E430、5130H、

SAE1030M、SAE4124、20CrMoH、SAE1527

Φ51~533X4~130

Special pipe for petroleum

API,ASTM or User Agreements & Standards

4130、4130M、4140、4145、1340、35CrMo、42CrMo、

J55、N80、L80、P110、Q125、9-13Cr

Φ51~533X4~130

Line pipes

API or User Agreements & Standards

L245NS、X52NS、X70QS、X100QO

Φ51~533X4~130

Hydraulic prop and cylinder pipe

GB or User Agreements & Standards

27SiMn、30CrMnSiA、26MnNbTiB、FGS80WV、S690、

S890、P355NL1、20MnV6、Q345

Φ51~533X4~130

Fluid pipe

GB or User Agreements & Standards

20、Q235、Q345

Φ51~533X4~130

Bearing pipe

SKF Specification, GB or User Agreements & Standards

52100、100Cr6、SUJ2、GCr15、GCr15SiMn、100CrMo7、8620

Φ51~533X4~130

Pipe for boilers

ASME,ASTM,GB or User Agreements & Standards

SA-106B/C、T/P22、T/P91、T/P92、12Cr2MoG、15CrMoG、12Cr1MoVG

Φ51~533X4~130

Gas cylinder tube

GB or User Agreements & Standards

37Mn、4130X、34CrMo4、30CrMoLX

Φ51~533X4~130

Military pipe

GB or User Agreements & Standards

30CrMnSiNi2A、30CrMnSiA、PCrNi1MoA、GH1131

Φ51~533X4~130