DIN2391 ST35 Seamless cold drawn tubes Description
DIN 2391 ST35 Seamless Precision Tubes are made of St35 steel and meet the requirements of DIN 2391. The tubes are usually normalised (NSK) to quality class C and can be supplied with an outer diameter of 100 mm, an inner diameter of 94 mm and a fixed length of 4,000 mm. The material for these tubes should be made from electric furnace steel or oxygen top-blown steel, which has good mechanical properties and is suitable for high-pressure and precision-demanding application scenarios.
DIN2391 ST35 cold finished seamless precision steel tubes specification
|
Product Name |
DIN2391 ST35 Honed tube Hydraulic steel pipes |
|
Size Tolerance |
±1% |
|
OD |
10-700 mm |
|
Thickness |
Cold rolled:1~4.0mm |
|
Length |
1-12M |
|
Technology |
Hot roll, cold roll, cold drawn, ect. |
|
Material |
ST35, ST52 |
|
Standards |
DIN2391 |
|
Certifications |
SGS, ISO9001 |
|
Packing |
Industry standard packaging or according to client's requirement |
|
Payment |
T/T,L/C,Western Union,Paypal,Apple Pay,Google Pay,D/A,D/P,MoneyGram |
|
Delivery time |
Usually 15 working days, your purchase volume determines our delivery time |
St35 Chemical composition (%)
| composition | C | Si | Mn | P | S | Ti | V | Nb | More |
|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | 0.4 | - | - | - | - | - | Nb+Ti+V≤0.05 |
| Max | 0.17 | 0.35 | - | 0.025 | 0.025 | 0.03 | 0.05 | 0.03 |
St35 Mechanical properties
| product | mark | Heat treatment or condition | tensile strength σb Mpa |
yield point σs Mpa |
Elongation at break or elongation δ % |
|---|---|---|---|---|---|
| Seamless Steel Pipe | St35 BK | Cold finishing (hard) BK | ≥480 | ≥6 | |
| Seamless Steel Pipe | St35 BKW | Cold finishing (soft) BKW | ≥420 | ≥10 | |
| Seamless Steel Pipe | St35 BKS | Cold finishing and stress relief BKS | ≥420 | ≥315 | ≥14 |
| Seamless Steel Pipe | St35 GBK | annealing GBK | ≥315 | ≥25 | |
| Seamless Steel Pipe | St35 St35 | normalizing NSK | 340~470 | ≥235 | ≥25 |
DIN2391 ST35 Seamless Steel PIpe
FAQ
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your
needs.
Q3:What is your terms of payment ?
A:30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q4.Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q5:What are the certifications for your products?
A:We have ISO 9001,CE, MTC, third parties' inspections are all available such SGS, BV ect.
Q6:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances
occur.
Q7:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
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