TORICH INTERNATIONAL LIMITED
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-40Days |
| Packaging Details | In bundles or in wooden boxes. |
| Application | Pipeline Engineering |
| Standard | ASTM,DIN,GB,JIS,API |
| Thickness | 2 - 100 mm |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,Hot Rolled/Cold Drawn |
| Surface treatment | customerized |
| Grade | Q390B |
| Alloy or not | Is Alloy |
| Standard2 | GB/T 1591 |
| Section shape | Round |
| Outer diameter(round) | 17 - 660 mm |
| Special pipe | Precision steel tube,precision seamless pipe,cold drawn |
| Secondary or not | Non-secondary |
| Grade group | Q195-Q345 A/B/C/D |
| Length | 6M or as requirement,As customer's require |
| Product name | steel tubes,Cold drawn precision round carbon steel tube |
| Type | Seamless |
| Outer diameter | 6-630mm |
| Material | steel |
| Brand Name | TORICH |
| Model Number | GB/T 1591 Q390B |
| Certification | API,CE,ISO,ISO9001-2008,ISO9001 |
| Place of Origin | Zhejiang/China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 60000 Ton/Tons per Year |
| Delivery Time | 20-40Days | Packaging Details | In bundles or in wooden boxes. |
| Application | Pipeline Engineering | Standard | ASTM,DIN,GB,JIS,API |
| Thickness | 2 - 100 mm | Technique | Cold Drawn,Hot Rolled,Cold Rolled,Hot Rolled/Cold Drawn |
| Surface treatment | customerized | Grade | Q390B |
| Alloy or not | Is Alloy | Standard2 | GB/T 1591 |
| Section shape | Round | Outer diameter(round) | 17 - 660 mm |
| Special pipe | Precision steel tube,precision seamless pipe,cold drawn | Secondary or not | Non-secondary |
| Grade group | Q195-Q345 A/B/C/D | Length | 6M or as requirement,As customer's require |
| Product name | steel tubes,Cold drawn precision round carbon steel tube | Type | Seamless |
| Outer diameter | 6-630mm | Material | steel |
| Brand Name | TORICH | Model Number | GB/T 1591 Q390B |
| Certification | API,CE,ISO,ISO9001-2008,ISO9001 | Place of Origin | Zhejiang/China |
Q390B is a high-strength low-alloy (HSLA) structural steel that is widely used in pipeline engineering. It is designed to provide enhanced mechanical properties and greater resistance to atmospheric corrosion compared to conventional carbon steels. This makes it an ideal choice for demanding applications where strength and durability are critical.
The chemical composition of Q390B alloy steel is crucial for its performance characteristics. Below is a table presenting the typical chemical composition:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.18 max |
| Silicon (Si) | 0.55 max |
| Manganese (Mn) | 1.20 - 1.60 |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 0.30 max |
| Nickel (Ni) | 0.50 max |
| Copper (Cu) | 0.40 max |
| Vanadium (V) | 0.10 max |
| Niobium (Nb) | 0.06 max |
The mechanical properties of Q390B steel are essential for determining its suitability for specific applications. The table below outlines these properties:
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 490 - 650 |
| Yield Strength (MPa) | ≥ 390 |
| Elongation (%) | ≥ 20 |
| Impact Energy (J) | ≥ 34 (at -20°C) |
Q390B is comparable to several international standards and steel grades, which include:
Q390B alloy steel is primarily used in pipeline engineering due to its strength and durability. Some common applications include:
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller
Year Established:
1997
Total Annual:
25000000-30000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Who We are ？ -------A professional steel pipes materials inventor, manufacturer and solution provider Torich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which hol... Who We are ？ -------A professional steel pipes materials inventor, manufacturer and solution provider Torich International Limited is a professional manufacturer and exporter of steel pipes materials. It is an international marketing and sales company specialized in steel tubes, which hol...
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