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. |
| Standard2 | GB/T 38681 |
| Thickness | 0.4 - 50 mm |
| Standard | GB |
| Grade | NS1101 NS1102 NS1104 NS1402 NS3306 |
| Application | Structure Pipe |
| Section shape | Round,Square |
| Alloy or not | Is Alloy |
| Technique | Hot Rolled,Cold Drawn,Cold Rolled,welded and seamless steel pipe |
| Surface treatment | customerized |
| Secondary or not | Non-secondary |
| Outer diameter(round) | 22 - 530 mm |
| Special pipe | seamless stainless steel tube |
| Material | Carbon steel |
| Length | 5-12M or as your requirement |
| Usage | Construction Structure |
| Shape | Square. Rectangular.Round |
| Product name | Seamless steel tube |
| Surface | Customers't Requirement |
| Brand Name | TORICH |
| Model Number | GB/T 38681 |
| Certification | ISO 9001 ISO14001 TS16949 |
| 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. |
| Standard2 | GB/T 38681 | Thickness | 0.4 - 50 mm |
| Standard | GB | Grade | NS1101 NS1102 NS1104 NS1402 NS3306 |
| Application | Structure Pipe | Section shape | Round,Square |
| Alloy or not | Is Alloy | Technique | Hot Rolled,Cold Drawn,Cold Rolled,welded and seamless steel pipe |
| Surface treatment | customerized | Secondary or not | Non-secondary |
| Outer diameter(round) | 22 - 530 mm | Special pipe | seamless stainless steel tube |
| Material | Carbon steel | Length | 5-12M or as your requirement |
| Usage | Construction Structure | Shape | Square. Rectangular.Round |
| Product name | Seamless steel tube | Surface | Customers't Requirement |
| Brand Name | TORICH | Model Number | GB/T 38681 |
| Certification | ISO 9001 ISO14001 TS16949 | Place of Origin | Zhejiang/China |
| High Light | Corrosion Resistant Alloy Seamless Steel Tube ，Industrial Furnace Seamless Steel Tube ，GB/T 38681 Seamless Steel Tube | ||
The GB/T 38681 standard specifies the requirements for seamless steel tubes made from corrosion-resistant alloy steel, designed for use in industrial furnaces. These pipes are engineered to withstand high temperatures and corrosive environments, making them suitable for various industrial applications.
The seamless steel tubes covered under this standard are categorized into different grades, each with specific properties and applications. The key specifications include dimensions, tolerances, and mechanical properties.
| Steel Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) | V (%) |
|---|---|---|---|---|---|---|---|---|---|
| NS1101 | 0.10 | 0.50 | 1.00 | 0.020 | 0.010 | 12.00 | 0.50 | 0.50 | 0.05 |
| NS1102 | 0.12 | 0.60 | 1.20 | 0.020 | 0.010 | 11.00 | 1.00 | 0.40 | 0.05 |
| NS1104 | 0.15 | 0.70 | 1.50 | 0.020 | 0.010 | 10.00 | 1.50 | 0.30 | 0.05 |
| NS1402 | 0.20 | 0.80 | 1.80 | 0.020 | 0.010 | 9.00 | 2.00 | 0.20 | 0.05 |
| NS3306 | 0.25 | 0.90 | 2.00 | 0.020 | 0.010 | 8.00 | 2.50 | 0.10 | 0.05 |
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| NS1101 | ≥ 250 | ≥ 450 | ≥ 20 | ≤ 200 |
| NS1102 | ≥ 260 | ≥ 460 | ≥ 18 | ≤ 210 |
| NS1104 | ≥ 270 | ≥ 470 | ≥ 17 | ≤ 220 |
| NS1402 | ≥ 280 | ≥ 480 | ≥ 15 | ≤ 230 |
| NS3306 | ≥ 290 | ≥ 490 | ≥ 14 | ≤ 240 |
The steel grades specified in GB/T 38681 include NS1101, NS1102, NS1104, NS1402, and NS3306. Each grade is tailored for specific applications and performance requirements.
These seamless steel tubes are primarily used in:
While the specified grades are optimal for many applications, alternative grades may include:
These alternatives may offer similar properties and can be considered based on specific project requirements.
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 providerTorich 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 holds the ... Who We are ? -------A professional steel pipes materials inventor, manufacturer and solution providerTorich 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 holds the ...
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