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DIN 2391 Carbon Seamless High Precision Pipe

  • DIN2391, DIN1630, DIN1629

  • ST35, ST45 , ST52, ST37.4, ST52.4 and others

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Quantity:
STANDARDS

Standard

Material Chemical Composition (%)

Tensile strength Rm (Mpa)

Yield Strength Reh (Mpa) Min

A Elongation(%) Min

Steel Grade

Material Number

C  

Si    

Mn

P    

S  

Cr

Mo




DIN1629

ST37

1.0254

≦ 0.17

≦ 0.55

≦1.60

≦0.04

≦0.04

350-480

235

25

ST44

1.0258

≦ 0.21

0.55

≦1.60

≦0.04

≦0.04

420-550

275

21

ST52

1.0421

≦ 0.22

≦ 0.55

≦1.60

≦0.04

≦0.035

550-650

355

22

DIN1630

ST37.4

1.0255

≦ 0.17

≦ 0.35

≧0.035

≦0.04

≦0.04

350-480

235

25

ST44.4

1.0257

≦ 0.21

≦ 0.35

≧0.04

≦0.04

≦0.04

420-550

275

21

ST52.4

1.0281

≦ 0.22

≦ 0.55

≦1.60

≦0.04

≦0.035

550-650

355

22


Standard

Material Chemical Composition (%)



Steel Grade

Material Number

C  

Si    

Mn

P    

S  

Cr

Mo

DIN 2391

ST35

1.0308

≦ 0.17

≦ 0.35

≧0.04

≦0.025

≦0.025

ST45

1.0408

≦ 0.21

≦ 0.35

≧0.04

≦0.025

≦0.025

ST52

1.058

≦ 0.22

≦ 0.55

≦1.60

≦0.025

≦0.025


Standard

BK

BKW

BKS

GBK

NBK

Rm Tensile Strength  (Mpa) Min

A Elongation(%) Min

Rm Tensile Strength (Mpa) Min

A Elongation(%) Min

Rm Tensile Strength (Mpa) Min

Rel Yield Strength(Mpa) Min

A             Elongation  (%) Min

Rm Tensile Strength (Mpa)Min

A Elongation (%)Min

Rm Tensile Strength (Mpa)

Rel Yield Strength  (Mpa) Min

A Elongation (%) Min

DIN 2391

480

6

420

10

420

315

14

315

25

340-470

235

25

580

5

520

8

520

375

12

390

21

440-570

255

21

640

4

580

7

580

420

10

490

22

490-630

355

22

NBK

Rm Tensile Strength (Mpa)

Rel Yield Strength  (Mpa) Min

A Elongation (%) Min

340-470

235

25

440-570

255

21

490-630

355

22


PRODUCT INFORMATION

steel tube

PACKING AND DELIVERY

steel tube packing

APPLICATION

1. For Vehicles (Automobiles, Trains, Construction Machinery like Concrete pumps, and others)

A. Powertrain system:

• Fuel pipes • Fuel hoses • Diesel fuel lines • Piston-cooling sprays • SCR & EGR systems

• Sturdy tubes • Oil and water cooling pipes

B. Fluid handling systems

• Tube assemblies • Air conditioning hoses • Clutch actuator tubes

C. Drive and steering system

• Transmission gear pipes • Power steering supply pipes

D. Hydraulic system

• Hydraulic and pneumatic pressure lines • Hydraulic connectors • Hydraulic tubing

E. Others, for example

• Front axles • Wire tubes for sunshades and other applications • Tubes for headrest chairs

2. Mechanical and engineering applications

• Machining and components • Metalworking • Heat transfer • Gas storage cylinders

• Underwater and marine • Aerospace • Wind power equipment • Energy and power generation • Bearings • etc.

Other applications can be customized according to customer requirements.


MANUFACTURE PROCESS

tube manufacture process

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