DIN2391 St30Si Seamless Precision Steel Pipe
GNEE is the Manufacturer, Supplier and Exporter of DIN2391 St 30 SI Precision Tubes which are manufactured from high quality raw material. GNEE products are designed in accordance with major international standards and are sold in many countries around the world.
DIN2391 St 30 SI precision steel pipe is mainly used in occasions with special requirements for dimensional accuracy, small wall thickness, and surface condition. For example, DIN2391 St 30 SI low carbon steel pipe is used for high-pressure oil pipes, cylinder liners, capacitors, etc.
The dimensional accuracy of DIN2391 St 30 SI precision mechanical tube can reach H7, H8, H9 levels. The internal and external surfaces are highly smooth, the surface conditions are controllable, and the wall thickness can be less than 0.5 mm. Therefore, DIN2391 St 30 SI carbon steel seamless pipe is widely used in the above fields.
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DIN2391 St30Si specifications
Size: 6mm-350mm.
W.T.: 0.8mm-50mm.
Shape: Round.
Production type: Cold drawn or cold rolled.
Length: Single random length/ Double random length or as customer's actual request max length is 10m.
Grade: St30 Si.
DIN2391 Seamless cold drawn tube Chemical Composition (%)
| Standard | Grade | Chemical Components (%) | |||||
| Symbol | Material No. | C | Si | Mn | P | S | |
| DIN2391 | St 30 Si | 1.0211 | ≤0.10 | ≤0.10 | ≤0.55 | ≤0.025 | ≤0.025 |
Seamless precision tube Mechanical Properties
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | BK | BKW | BKS | GBK | NBK | |||||||
| Rm | A % | Rm | A % | Rm | ReH | A % | Rm | A % | Rm | ReH | A % | ||
| Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | |||||||
| St 30 Si | 1.0211 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 420 | 215 | 30 |
DIN2391 St30Si Seamless steel tube
Why choose us
gnee has 14 steel production lines, 10 processing equipment for processing, bending, painting, heat treatment, cutting, drilling, beveling, tempering, surface treatment, complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tons.
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FAQ
1.Q.Why choose you?
A.Firstly quality, secondly price, we can give you both. Our service formula: good quality + good price + good service = customer's trust.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q.Do you have quality control?
A.Yes, we have got BV.SGS certification.
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