Product Details:
Payment & Shipping Terms:
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| STANDARD: | DIN | SHAPE: | CIRCULAR |
|---|---|---|---|
| PLACE OF ORIGIN: | JIANGSU, CHINA | SECONDARY OR NOT: | BRAND NEW |
| PROCESSING: | SEAMLESS | SURFACE: | BARE, OIL, VARNISH, BLACK, LUBRICATION |
High Performance Cold Drawn Seamless Tube DIN1630 ST37.4 / 1.0255 OD42mm
Specifications:
Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling
Ends: PE, ends caps
Marking: as per requirement
Delivery Condition: Annealed/Normalized/Tempered
Size:(mm)
OD: ≤ 114.3 mm
or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement) or random length
Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement
CHEMICAL COMPOSITION (%):
|
CHEMICAL COMPOSITION (CAST ANALYSIS) IN% |
||||||
|
Grade |
C≤ |
Si≤ |
Mn |
P≤ |
S≤ |
|
|
ST 37.4 |
1.0255 |
0.17 |
0.35 |
≥ 0.35 |
0.040 |
0.040 |
MECHNICAL PROPERTIES:
|
STEEL GRADE |
Tensile Strength σb(Mpa) N/mm2 |
Yield Strength σs(Mpa) (WT in mm) |
Elongation δ(%) (L=5do) |
IMPACT (DVM—TEST SAMPLE) |
|||||||
|
≤16 |
＞16≤40 |
＞40≤65 |
L |
T |
L |
T |
|||||
|
(MIN) N/mm2 |
% (MIN) |
δ (MIN) |
|||||||||
|
ST 37.4 |
1.0255 |
350-480 |
235 |
225 |
215 |
25 |
23 |
43 |
27 |
||
DIMENSION TOLERANCE:
|
OD (mm) |
Permissible daviation in OD |
||
|
Tube Barrel and tube ends |
At tube ends, subject to particular agreement 1) |
||
|
≤ 100 |
±1% (value up to ±0.5mm are permitted) |
± 0.4 mm |
|
|
100 − 200 |
±1% |
± 0.5% |
|
|
> 200 |
±1% |
± 0.6% |
|
|
Length Tolerance (mm) |
|||
|
≤6000 |
0 - +10 |
||
|
6000<L≤12000 |
0 - +15 |
||
|
>12000 |
By Agreement |
||
INSPECTION AND TEST:
CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening,impact, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.
Description:
DIN1630 is the standard for high performance seamless steel pipe. It applies to seamless circular tubes and pipes made of unalloyed steels. These pipes are pradominantly used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purposes. They are designed to meet high performance requirements. Normally, there are no limiting values for the maximum permissible working pressure of these tubes. The permissible working temperature shall not exceed 300℃.
Top quality products
Applications:
1. chemical plant,
2. vessels,
3. pipework,
4. for general mechanical engineering purposes.
Designed to meet high performance requirements
Competitive Advantage:
Try our best to reduce the costs during our production. Try our best to give biggest benefit to our customer!
