| Place of Origin: | China |
|---|---|
| Brand Name: | SunShine |
| Certification: | ISO9001 |
| Model Number: | 6mm to 114.3mm |
| Minimum Order Quantity: | 5T |
| Packaging Details: | In Bundles, Woodenbox As Your Requirement |
| Delivery Time: | 30days |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 2000T/Month |
| Keyword: | Seamless Tube | OD. Range: | 6mm – 114.3mm |
|---|---|---|---|
| Wall Thickness: | 1mm-15mm | Length: | Max Length 12M |
| Standard: | DIN2394 | Grade: | St 44-2,RSt 37-2, RSt 34-2 |
| Heat Treatment: | BK,+C,+NBK,+QT | ||
| High Light: | P234gh Seamless Precision Tube,ST44-2 Seamless Precision Tube,22mm p235gh pipe |
||
DIN 2394-81 ST44-2 api 5l grade x62 p234gh p235gh p235tr p91 p92 od 22mm 34mm 45mm
This standard specifies technical delivery conditions for welded and sized precision steel tubes of the dimensions listed in DIN 2394 Part 1, which are made from the steel grades listed in clause 4.
Such tubes are mainly used where accuracy to size and, possibly, a small wall thickness, a particular surface condition and specific mechanical properties are required.
This standard does not cover:
welded, circular, unalloyed steel tubes subject to special requirements (cf. DIN 1626);
high performance welded, circular, unalloyed steel tubes (cf. DIN 1628);
welded circular steel tubes for structural steelwork (cf. DIN 17 120);
welded circular fine grain steel tubes for structural steelwork (cf. DIN 17123);
welded circular tubes made from steels with low temperature toughness (cf. DIN 17174);
electric pressure-welded steel tubes with elevated temperature properties (cf. DIN 17177);
welded circular fine grain steel tubes subject to special requirements (cf. DIN 17 178);
welded circular austenitic stainless steel tubes subject to special requirements (cf. DIN 17 457);
teel pipes for conveying combustible liquids and gases (cf. DIN 17172).
DIN 2394-81 ST44-2 Grade and Chemical Composition
| Grade | Chemical composition (%) | ||||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Others | |||
|
St28 USt28 RSt28 |
W | 0.13Max | - | - | 0.050Max | 0.050Max | - | - | - | - | a |
| b | |||||||||||
| c | |||||||||||
| St34.2 US34.2 RSt34.2 | W | 0.15Max | - | - | 0.050Max | 0.050Max | - | - | - | - | a |
| b | |||||||||||
| c | |||||||||||
| St3.2 US37.2 RSt37.2 | W | 0.17Max | - | - | 0.050Max | 0.050Max | - | - | - | - | a |
| b | |||||||||||
| c | |||||||||||
| St44.2 | W | 0.21Max | - | - | 0.050Max | 0.050Max | - | - | - | - | a |
| b | |||||||||||
| c | |||||||||||
| St52.3 | W | 0.25Max | 0.55Max | 1.60Max | 0.040Max | 0.040Max | - | - | - | - | a |
| b | |||||||||||
| c | |||||||||||
DIN 2394-81 ST44-2 Mechanical properties
| Mechanical properties | |||
|
Steel Grade
|
Tensile Strength, N/mm2 (min)
|
Yield Strength, N/mm2 (min)
|
Elongation, % (min)
|
|
NBK
|
|||
|
RSt 34-2
|
310 - 410
|
205
|
28
|
|
RSt 37-2
|
340 - 470
|
235
|
25
|
|
St 44-2
|
410 - 540
|
255
|
21
|
|
BK
|
|||
|
RSt 34-2
|
330
|
-
|
8
|
|
RSt 37-2
|
390
|
-
|
7
|
|
St 44-2
|
440
|
-
|
6
|
|
GBK
|
|||
|
RSt 34-2
|
300
|
-
|
28
|
|
RSt 37-2
|
315
|
-
|
25
|
|
St 44-2
|
390
|
-
|
21
|
| Grade |
Material number |
Tensile Test MPa or N/mm2 |
Remarks (Similar to JIS) |
|
| Min Yield point | Tensile Strength | |||
| St28 USt28 RSt28 |
- 1.0357 1.0326 |
- | 305Min | (STKM11) (STAM290G) |
| - | 265Min | |||
| 180 | 275~385 | |||
| St34-2 US34-2 RSt34-2 |
- 1.0028 1.0034 |
- | 335Min | - |
| - | 305Min | |||
| 205 | 315~410 | |||
| St37-2 US37-2 RSt37-2 |
1.0037 1.0036 1.0038 |
- | 390Min | (STKM12) |
| - | 315Min | |||
| 205 | 340~470 | |||
St44-2 |
1.0044 |
- | 440Min | (STKM13) (STAM390G) |
| - | 390Min | |||
| 255 | 410~540 | |||
St52-3 |
1.0570 |
- | 540Min | (STKM19) |
| - | 490Min | |||
| 350 | 490~630 | |||
FAQ
Q: What product information must I provide before making a purchase?
Please provide the grade, width, thickness, and surface treatment requirements, as well as the quantities you require.
Q: What shipping ports are there?
We normally ship from Shanghai,Tianjin, Qingdao, and Ningbo ports
Q: Is it possible to send samples?
Of course, we offer free samples and express shipping to customers all over the world.
Q: Do you offer a service for customized products?
Yes, we can produce according to your specifications and drawings.
Q: Can I pay you a visit at your factory?
Customers from all around the world are welcome to visit our factory.
Q: Can you assist me in importing steel products for the first time?
Yes, we have shipping agent who will arrange the shipment with you.
Q: Do you have any MOQ limit for production?
We don’t have any MOQ limit. But as for our steel pipe product, we usually use container transport for lower freight. In the case of express delivery, high freight charges will be generated.
Q: Is it OK to print my logo on the product or the carton packing?
Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q: How to pack the product?
The inner layer has a waterproof paper outer layer, iron packaging, and is fixed with a fumigated wooden pallet. It
can effectively protect products from corrosion during ocean transportatio
