Precision Seamless Steel Pipe for Auto Spare Parts

• Type: Seamless
• Technique: Cold Drawn
• Material: Alloy Steel
• Surface Treatment: Black
• Usage: Oil/Gas Drilling, Machinery Industry, Chemical Industry, Special Purpose, Auto Pipe,Motorcycle Pipe,Bike Pipe
• Section Shape: Round
• Model NO.: KM-0113
• Diameter: 6~102mm
• Thickness: 0.6~19mm
• Length: 1~12 Meters
• Product Standard: JIS G3441,JIS G3444,JIS G3445,DIN1629,DIN 2391,etc
• Precision: Inner Diameter Could Be Controlled in 0.1mm
• Packages: in Bundle or Wooden Cases.
• Transport Package: in Bundle with Hex Steel Belt or Wooden Cases.
• Specification: 6~102mm
• Trademark: Kingmetal
• Origin: Made in China
• HS Code: 73041930
• Production Capacity: 2000 Tons Per Month

Product Description

precision seamless steel pipe for auto spare parts

Outer Diameter(O.D): 6~102mm
Wall Thickness(W.T): 0.6~19mm
Length; 1~12,
Precision:The common difference of inner diameter could be controlled in the scope of 0.1mm
Material: carbon steel (A53, A106, A1045,St37, St45-8, St42-2, CK45 etc)
                alloy steel (4St52, A210-C, J55SAE5120, SAE5140,SAE5120 etc)
Standard: JIS G3441,JIS G3444,JIS G3445,DIN1629,DIN 2391,EN10305,EN10210,GB/T 8162-2008, GB/T 8163-2008, GB/T3639-2009 etc
 

Chemical composition

Standard

Grade

Chemical composition:(%)

C

Si

Mn

P≤

S≤

Cr

Mo

Cu≤

Ni≤

Ti

V

Nb

GB/T 699

10

0.07~0.13

0.17~0.37

0.35~0.65

0.035

0.035

≤0.15

0.25

0.3

20

0.17~0.23

0.17~0.37

0.35~0.65

0.035

0.035

≤0.35

0.25

0.3

35

0.32~0.39

0.17~0.37

0.50~0.80

0.035

0.035

≤0.25

0.25

0.3

45

0.42~0.50

0.17~0.37

0.50~0.80

0.035

0.035

≤0.25

0.25

0.3

GB/T3077

20Cr

0.18~0.24

0.17~0.37

0.50~0.80

0.035

0.035

0.70~1.00

40Cr

0.37~0.44

0.17~0.37

0.50~0.80

0.035

0.035

0.80~1.10

20CrMo

0.17~0.24

0.17~0.37

0.40~0.70

0.035

0.035

0.80~1.10

0.15~0.25

42CrMo

0.38~0.45

0.17~0.37

0.50~0.80

0.90~1.20

0.15~0.25

20CrMnTi

0.17~0.23

0.17~0.37

0.80~1.10

1.00~1.30

0.04

~0.10

GB/T1591

Q345B

≤0.20

≤0.55

1.00~1.60

0.04

0.04

0.02

0.02

0.015

~0.20

~0.15

~0.060

Mechanical properties

Standard

Grade

Tensile strength (Mpa)

Yield strength (Mpa)

Elongation (%)

Hardness HBW

No less than

No less than

GB/T8162

10#

>=335

205

24

-

20#

>=410

245

20

-

35#

>=510

305

17

-

45#

>=590

335

14

-

Q345B

470-630

345

20

-

20Cr

>=785

490

10

179

40Cr

>=980

785

9

207

20CrMo

>=845

635

11

197

42CrMo

>=1080

930

12

217

20crMnTi

>=1080

835

10

217

material&standard comparison table

GB

ASTM/ASME

DIN

EN

JIS

GB/T8162

10

A53

A

DIN1629

St37

EN17121

St37-2/3

G3454

STPG370

GB/T8163

A106

A

GB/T3639

A519

1010

20

A53

B

DIN1629

St44

EN17121

St44-2/3

G3454

STPG410

A106

B

A519

1020

45

A1045

CK45

Q235

A519

1021

EN10210-1

S235JRH

G3444

STK400

EN1097-1

E235

Q345

A519

1524

DIN1629

St52

G3444

STK500

37Mn5

J55

35CrMo

4135

G4105

SCM435

20Cr

5120

SCr420

40Cr

5140

SCr440

15CrMo

SCM415

20CrMo

4119

SCM420

42CrMo

4150/4142

SCM440

20CrMnTi

SMK22