Wholesale Hot Rolled Carbon Seamless Steel Pipe - DIN 17175 ST45.8 Seamless Steel Tubes – Haihui
Short Description:
Wholesale Hot Rolled Carbon Seamless Steel Pipe - DIN 17175 ST45.8 Seamless Steel Tubes – Haihui Detail:
Manufacturing: Seamless Process.
External dimensions: 14mm-711mm.
Wall thickness: 2mm-60mm.
Length: Fixed length (6m, 9m, 12m, 24m) or normal length (5-12m).
Ends: Flat, Beveled, Stepped.
Manufacturing Method
DIN 17175 St45.8 seamless steel pipes can be produced by hot rolling, cold rolling, hot pressing, hot drawing or cold drawing.
Steel pipes can be smelted in an open hearth or electric furnace according to the oxygen blow method, and all steel should be cast statically.
Availability
17175 St45.8 seamless steel pipe will be delivered with proper heat treatment. Heat treatment includes:
- Normalization.
- Annealing.
- Tempering; from the quenching temperature, it is not cold, but tempered.
- Adjust mass by isothermal transformation method.
|
Steel Grade |
Thermal processing ℃ | Normalizing℃ | Tempering | ||
| Grade | Material number | Quenching temperature ℃ | Tempering temperature ℃ | ||
| St45.8 | 1.0405 | 1100 to 850°C | 870-900 | – | – |
| Standard:DIN 17175 | Grade | Chemical composition(%) | |||||
| C | Si | Mn | P、S | Cr | Mo | ||
| St45.8 | ≤0.21 | 0.10-0.35 | 0.40-1.20 | ≤0.030 | / | / | |
| Grade | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) |
| St45.8 | 410-530 | ≥255 | ≥21 |
A thin sheet should be taken at the top end of each round or square bar ingot for a pickling test to determine if the top end is adequately cut. Ultrasonic testing can also be performed on the shrinkage hole as selected by the supplier.
Test:
Chemical composition verification test
hydrostatictest
Tensile test
Notched impact test
Yield strength test
Ring test
Nondestructive testing
Tube Flag
All steel pipes submitted for testing and acceptance shall be marked on the left and right sides of the pipe end at 300 mm. The mark is usually a number. Thin-walled tubes can also be used in other forms.
Marking and ordering
The steel grade or material number should be written to the abbreviation of the product as shown in the following example:
Example 1:
A DIN 17175 outer diameter 63mm, wall thickness 2.5 mm mm steel grade ST45.8 material, number 1.03 0 5 seamless steel pipe whose name is written: steel pipe DIN 17175-ST45.8 – 63 × 2.5 or steel pipe DIN 17175 -1.0305 – 63 × 2 . 5.
Product detail pictures:
Related Product Guide:
We now have our own gross sales team, style and design workforce, technical crew, QC workforce and package group. We now have strict quality manage procedures for each system. Also, all of our workers are experienced in printing industry for Wholesale Hot Rolled Carbon Seamless Steel Pipe - DIN 17175 ST45.8 Seamless Steel Tubes – Haihui, The product will supply to all over the world, such as: Iran, Moscow, Netherlands, Our qualified engineering team will usually be prepared to serve you for consultation and feedback. We are able to also deliver you with absolutely free samples to meet your needs. Best efforts might be made to offer you the ideal service and products. For anyone who is interested in our company and items, please make contact with us by sending us emails or contact us right away. In order to know our solutions and organization. ar more, you can come to our factory to determine it. We are going to usually welcome guests from around the globe to our corporation. o create small business relations with us. Please really feel no cost to speak to us for enterprise. nd we believe we are going to share the most effective trading practical experience with all our merchants.
By Rigoberto Boler from French - 2018.09.21 11:01
This supplier offers high quality but low price products, it is really a nice manufacturer and business partner.
By Adam from Lisbon - 2017.10.23 10:29
