GNEE has been a professional exporter of precision steel pipes for more than 16 years. The DIN2391 St30Si seamless steel pipes we supply have smooth inner and outer walls, no burrs or pits, which reduces the resistance of the fluid in the pipeline and improves the efficiency of the system. After special treatment during the manufacturing process, there is no oxide layer on the inner and outer walls, and the outer diameter and wall thickness are controlled with high precision, which can meet the needs of precision machinery and hydraulic systems.
The outer diameter range of DIN2391 St30Si high-precision steel pipes is 16-325mm, and the wall thickness range is 1-22mm. These specifications meet the needs of different systems and equipment.
Products Data
Chemical Composition (%) of DIN2391 St30Si Seamless Precision Tube
| 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 |
Mechanical Properties of DIN2391 St30Si Precision hydraulic seamless steel pipe
| 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 |
Products display
DIN2391 St30Si Precision bright seamless steel pipe
Why Choose GNEE
GNEE has specialized in producing hard chrome plated rods and honed/peeled tubes and drum polished tubes for over 16 years. We have sophisticated processing equipment, strong technical strength and advanced technology. And a professional after-sales service team of 20 people. To solve any doubts for you and provide project solutions!
If any question,please contact with us freely by E-mail or Telephone.sales@gneetube.com
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FAQ
Q.Can you provide samples?
A.Of course, we can provide you with free samples, but customers need to pay the shipping cost.
Q.How long is your delivery time?
A.Specifically, need to consider the quantity and specifications of your order.
Q.Do you have quality control?
A.Yes, we have got BV.SGS certification.
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