DIN1629 seamless steel pipe & tube

Standard

Grade

Chemical Composition(%)(max)

Mechanical Properties

C

Si

Mn

P 

S

Cr

TS (Mpa)

YS(Mpa)

Elongation(%)

DIN1629

St37.0

0.17

/

/

0.04

0.04

/

350-480

235min

25min

St44.0

0.21

/

/

0.04

0.04

/

420-550

255min

21min

St52.0

0.22

0.55

1.7

0.04

0.04

/

550-650

270min 

21min

1. Out Diameter:

15-120mm

2. Wall Thickness:

1mm-15mm

3. Length:

5.8m-12m

4. Producing Standard:

  st52

5. Main Material:

 ASTM A53, A106, A210, A252, A333 etc;

X42, X46, X52, X60, X65, X70 etc;

JIS STPG42, G3454, G3456 etc;

German St37, St42, St45, St52, DIN1626, DIN17175

Chinese 20#, Q345, 16Mn   ANSI 8620   4130  4110  8630 etc

6. Special specifications:

Available according to customer’s requirements and quantity.

7. Shape:

Square tubes,
rectangular tubes,
hexagonal tubes,
MeiHuaXing pipe,
elliptic tube, 
triangular tube,
diamond pipe, 
octagon pipe,
half circular pipe type, 
melon seeds tube,
double convex tube,
double concave type tube,
etc

8. Surface treatment:

Oiled

9. Usage:

1.Widely used in the mechanical treatment field, petrochemical industry, transport and construction field

2.Ordinary structural purposes and mechanic structural purposes, for example in construction field, fulcrum bearing etc;

3.The transportation of fluids in the projects and big equipments, for example transport of water, oil, gas etc

4.Can be used in low and medium pressure boiler for the transportation of fluids, for example steam tube, big smoke tube, small smoke tube, generating tube etc