DIN 1630 Industrial Seamless Steel Fluid Pipe Thickness 0.8 mm ~ 30mm ST35 ST45 ST52
Seamless steel pipes are divided into two categories: hot-rolled and cold-rolled (dial) seamless steel pipes.
| Producet Name | DIN 1630 Industrial Seamless Steel Fluid Pipe Thickness 0.8 mm ~ 30mm ST35 ST45 ST52 |
| Standard | DIN 1630 |
| Grade | St35 , St45, St52 |
| Out Dimension | 6 mm ~ 350 mm |
| Wall Thickness | 0.8 mm ~30mm |
| Length | Fixed(6m,9m,12,24m) or normal length(5-12m) |
| Packing |
Beveled/black painting/ plastic caps/ in bundles/ steel strips/ wooden protection |
| Inspection and Test | Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength, Yield Strength,Elongation, Flaring, Flattening, Bending, Hardness, Impact Test),Surface and Dimension Test,Nodestructive Test, Hydrostatic Test. |
| Surface treatment | Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting |
| Mark |
As requested |
| Delivery Condition | Annealed, Normalized, Normalized and Tempered |
Chemical composition
|
Chemical composition(cast analysis)a |
||||||
|
Steel grade |
% by mass |
|||||
|
Steel name |
Steel number |
C |
Si |
Mn |
P |
S |
|
max. |
max. |
|
max. |
max. |
||
|
ST35 |
1.0305 |
0.17 |
0.35 |
≥0.40 |
0.025 |
0.025 |
|
ST45 |
1.0408 |
0.21 |
0.35 |
≥0.40 |
0.025 |
0.025 |
|
ST52 |
1.0580 |
0.22 |
0.55 |
≤1.60 |
0.025 |
0.025 |
Mechanical properties at room temperature
|
Steel grade |
Minimum values for the delivery condition |
||||||||||||
|
Steel name |
Steel number |
BK |
BKW |
BKS |
GBK |
NBK |
|||||||
|
Rm |
A |
Rm |
A |
Rm |
ReH |
A |
Rm |
A |
Rm |
ReH |
A |
||
|
MPa |
% |
MPa |
% |
MPa |
MPa |
% |
MPa |
% |
MPa |
MPa |
% |
||
|
ST35 |
1.0305 |
480 |
6 |
420 |
10 |
420 |
315 |
14 |
315 |
25 |
340 to 470 |
235 |
25 |
|
ST45 |
1.0408 |
580 |
5 |
520 |
8 |
520 |
375 |
12 |
390 |
21 |
440 to 570 |
255 |
21 |
|
ST52 |
1.0580 |
640 |
4 |
580 |
7 |
580 |
420 |
10 |
490 |
22 |
490 to 630 |
355 |
22 |
Applications
Mainly used in automotive, military, railway, industry with high requirement of the tube’s brightness, cleanness, antirust and antisepsis.
Factroy Picture
Pipe & Tube Production Line
Quality Control
Package
Export Standard / Wooden Box
Main Certificate
