| After-sales Service: | Yes |
|---|---|
| Warranty: | Yes |
| Type: | Seamless |
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Heat treatment:
STBA13:Low temperature annealing, isothermal annealing, full annealing, normalizing followed by tempering.
| C | Si | Mn | P | S | Mo |
| 0.15 - 0.25 | 0.1 - 0.5 | 0.3 - 0.8 | max 0.035 | max 0.035 | 0.45 - 0.65 |
| Assortment | Yield point or Proof stress | Tensile strength | Elongation | Reduction of area | Charpy impact strength |
| - | N/mm 2 | N/mm 2 | % | % | J/cm 2 |
| Tubes | 205 | 410 | 21-24 |
| - | Brinell HBW / HB |
Rockwell C HRC |
Rockwell B HRBS / HRB |
Vickers HV |
| STBA13 | 81 |
| STBA13 standards |
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1. Materials: Take the raw materials out of the raw material warehouse or procurement channels, and conduct inspection and sorting;
2. temperature control: according to the required performance of the product, choose the appropriate temperature, and control it within a certain range;
3. Heating: Use hot blast stove or other heating methods to heat raw materials to the required temperature;
4.annealing: the heated raw materials into the torch box for annealing treatment, in order to improve the mechanical properties of raw materials;
5. Hot rolling: Put the heated raw materials into the hot rolling mill, and process the raw materials through pressure to obtain the required products;
6. cooling: hot rolled products with water or other coolant for cooling, to ensure the stability of the product structure;
7. detection: physical and chemical performance test to determine whether it meets the requirements;
8. Finishing: Organize the products, label them, and prepare them for loading and delivery.
Applied to cryogenic pipe, liquid transport pipe
Our company was established in 2012, is a comprehensive company integrating industry and trade. The company has successively won the honorary titles of provincial integrity enterprise and municipal excellent enterprise. We are mainly engaged in various metal related products. Such as pipes, pipe fittings, rods, coils, profiles, medium and heavy plates, narrow strips and other types of materials. The warehouse has a variety of products of different specifications and materials, and the capacity is maintained at 30,000-50,000 tons/month. Products are widely used in petroleum, chemical, electric power, coal, machinery, high and low pressure boiler tubes, hydraulic props, ships and other industries. We make full use of the advantages of self-operated export rights and enter the international market. Our customers are located in South Korea, Canada, Iran, Pakistan, Indonesia, Vietnam, South America and other countries, and we have offices in Indonesia and Vietnam. The quality of our products is enjoyed at home and abroad. high reputation. We adhere to the business philosophy of "integrity service, win-win cooperation, customer first", and provide one-stop steel solutions for global customers. Welcome friends from all over the world to visit our company. We are looking forward to establishing business relationships and personal friendships with you.
Q:How do you control quality?
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