DIN 2391 ST35 Seamless Pipes
DIN 2391 ST35 is a standard specification for seamless precision steel tubes. These tubes are known for their high precision, excellent surface quality, and enhanced mechanical properties.
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of din 2391 st35 seamless pipes in China, also supports customized service with low price. Welcome to wholesale discount din 2391 st35 seamless pipes for sale here from our factory. Contact us for free sample.
DIN 2391 ST35 Seamless Pipe
What are Carbon Steel DIN 2391 ST35 Pipes?
The chemical composition of ST35 pipes to which DIN 2391 applies contains 0.17% carbon, 0.35% silicon, and a minimum of 0.40% manganese, as well as 0.025% phosphorus and sulfur. The outer diameter of this kind of pipe ranges from 4 mm to 60 mm. Due to its excellent mechanical qualities, it is often used in high-temperature and high-pressure places in oil, natural gas, petrochemical, petroleum and other industries.
This kind of pipe has strong tensile strength and yield strength and can be made into round, square or oval pipes. One of the great advantages of these stainless steel tubes is that they can be welded without any preheating, which makes their use very convenient and facilitates a simpler manufacturing process.
Product Properties
| Standard | Grade | C | Si | Mn | P max | S max |
| DIN2391 | St35 | ≤0.17 | ≤0.35 | ≥0.4 | 0.025 | 0.025 |
ST35 DIN 2391 Seamless Pipes Mechanical Properties
|
|
Cold drawn(Mandatory) |
Cold drawn(Soft) |
Cold Drawn and Stress Release |
Anneal |
Normalizing |
|||||||
|
|
BK1） |
BKW1） |
(BKS) |
(GBK)1） |
(NBK)1） |
|||||||
|
Grade |
Tensile |
Elongation |
Tensile |
Elongation |
Tensile |
Yield point |
Elongation |
Tensile |
Elongation |
Tensile |
Yield point |
Elongation |
|
|
N/mm2 |
% |
N/mm2 |
% |
N/mm2 |
N/mm2 |
% |
N/mm2 |
% |
N/mm2 |
N/mm2 |
% |
|
St35 |
480 |
6 |
420 |
10 |
420 |
315 |
14 |
315 |
35 |
340~470 |
235 |
25 |
DIN 2391 ST35 Carbon Steel Pipes
Company Advantage
We have full stock, and products can be delivered within 14 days. Multiple styles for your choices.
OEM and ODM order are accepted. Any kind of logo printing or design are available.
We are strong at Good Quality /Factory Price / Quick Response / Reliable Service.
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FAQ
Q.Are you a manufacturers and what is your production capacity?
A.Yes, we are manufacturers. We have our own factory and our owncompany. I believe we will be the most suitable supplier for you Large scalefactory.
Q.Can I customise the products?
A.Of course you can. We can manufacture according to your samples or technical drawings. We can make moulds and jigs.
Q.Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
Q.What is DIN 2391 ST35 equivalent to?
A.DIN 2391 is equivalent to ASTM A519, the standard for cold-drawn seamless tubes for hydraulic and pneumatic power systems.
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