Mechanical Processing Tube&Pipe

Usage

Dimension

Steel Grade

Standard/
Specification

Application Fields

OD(mm)

WT(mm)

Structural Pipe

48～765

3.5～120

10,20,35,45,Q345,Q390,Q420,Q460,Q500,Q550,Q690,20Cr,40Cr,27SiMn,15CrMo,20CrMo,30CrMo,35CrMo,42CrMo.

20CrNiMo,20CrMnMo,40CrMnMo,40CrNiMo,30CrMnSiA,35CrMnSiA,20CrMnTi

GB/T 8162

Machining parts.structural

parts and fittings

1020,1026,1035,1045,4130,E355,E470

ASTM A519/EN10297

Vehicle Pipe

48～765

3.5～120

45,18Mn2,20Mn2,25Mn,27Mn2,45Mn2,40MnB,40Cr,SAE1527,E460,E620,CZ450S,CZ530S

YB/T5035

Materials for auto axle pipe

and auto fittings pipe

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&Tube

48～765

3.5～120

DZ40,DZ50,DZ55,,DZ60,STM-R780 etc.

Q/OHAD006,YB/T 5052,agreement

Geological drilling

Hydraulic Cylinder Pipe

48～765

3.5～120

20,35,45,27SiMn,30CrMnSiA,35CrMnSiA,S890 etc.

GB/T 17396,technical agreement

Making hydraulic equipment for coal mine exploitation and hydraulic cylinder and piston for truck crane

Fluid Transmission Pipe&Tube

48～765

3.5～120

10,20,Q345,Q390,Q420,Q460 etc.

GB/T 8163,

Pipe&tube used for fluid transmission

Non-alloyand fine-grain

Structure tube&pipe

48～765

3.5～120

S275J0H、S355K2H、

S460NH、S275J2H、S355J0H、S355J2H、S355NH、S355NLH

EN10210

Public facilities and mechanical engineering such as bridge,gymnasium,airport and offshore wind power

Crane jib tube&pipe

48～765

3.5～120

HSM450,HSM770,HSM890,HSM960,S355,Q390,Q460,Q690

GB/T 30584-2014Q/OHAD 015-2008

Bearing truss of crawler crane,

auto crane and port

equipment crane

Hollow Mandrel

Tube&Pipe

318～720

50~120

42CrMo、30Cr3MoV

Q/OHADO02-2010

Hollow mandrel bar

High-end Building

Tube&Pipe

200.00×200.00

10.00~45.00

Q345、Q390、Q420

High-end building component

Pumping

Tube&Pipe

50.80~368.00

3.50~42.00

20,Q345B,45Mn2,NM50,NM55,HS-1,H65

QIOHAD 031-2013

Pump piping

oil cylinder

Tube&Pipe

57.00~765.00

4.00~120.00

20,45,25Mn,Q345B,Q345D,27SiMn,20MnTiB,26MnNbTi,E355,E355S,20Mnv6,20MnTiB,S550,S690,S720,S790,XG850,S890,30CrMnSiA

Q/OHAD 032-2019

Hydraulic cylinder

Rotary Drill

Tube&Pipe

57.00~765.00

4.00~120.00

Q345B,27SiMn,30CrMo,35CrMo,HG550,HG650,HG850

GB/T 34109-2017Q/OHAD037-2019

Rotary drill rod

Petroleum Machinery Tube&Pipe

57.00~765.00

4.00~120.00

4130,4140,K55,L80-1,T95-1,P110,C110,13cr,Q125-1,R95,35CrMo,42CrMo,SCM440TK

API 5CT、ASTM A519

Spare parts of petroleum service