Categories
| Price: | Negotiable/Piece |
|---|---|
| Trade Terms: | FOB,CFR,CIF |
| Min Order: | 500KG |
| Pay Type: | T/T,Western Union |
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: ≤660mm
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 |
ST 44.4 | 1.0257 | 0.20 | 0.35 | ≥ 0.40 | 0.040 | 0.040 |
ST 52.4 | 1.0581 | 0.22 | 0.55 | ≤ 1.60 | 0.040 | 0.035 |
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 | ||
ST 44.4 | 1.0257 | 420-550 | 275 | 265 | 255 | 21 | 19 | 43 | 27 | ||
ST 52.4 | 1.0581 | 500-650 | 355 | 345 | 335 | 21 | 19 | 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 | 0 - +15 | ||
>12000 | By Agreement | ||
Description:
DIN1630 applies to seamless circular tubes and pipes made of unalloyed steels. These tubes 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 300ºC.
Top quality products
Applications:
Mainly used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purposes. And designed to meet high performance requirements, etc.
Competitive Advantage:
Always put quality on first consideration makes us keep our qulity stable and good. Always put customer's benefit before ours makes our good service and gain us good reputation.
Advanced equipments. Sincere , truth and careful attitude on communication and production.
| Prod Model: | DIN1630 |
|---|---|
| Markets: | North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Model Number: | DIN1630 |
| Od: | <=660mm or as Per Customer's Requirement |
| Length: | 6m,9m,12m, 16m or as Per Requirement |
| Package: | Export Standard Packing or Customers' Demand |
| Place Of Origin: | Shenzhen,China |
| Delivery: | 7-30 Days After Dpeosit |
| Type: | Seamless |
| Application: | Drill Pipe |
| Section Shape: | Round |
| Usage: | Mining |
| Certification: | SGS |
| Surface Treatment: | Bare, Oil, Varnish, Black |
| Technique: | Hot Rolled, Cold Rolled, etc |
