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. |
| Section shape | Round/Square/Rectangular/Oval.etc |
| Secondary or not | Non-secondary |
| Technique | ERW |
| Application | Special Requests |
| Thickness | 0.4 - 50 mm |
| Surface treatment | Galvanized |
| Alloy or not | Non-alloy |
| Standard | ASTM,GB,JIS,BS |
| Grade | ST37.4 ST44.4 ST52.4 |
| Standard2 | DIN 1628 |
| Grade group | ST35-ST52 |
| Length | 1-12m/as customers' requests |
| Surface | Galvanized Coated |
| Outer diameter(round) | 20 - 677 mm |
| Product name | Galvanized Square Steel Pipe/Tube,ERW steel pipes |
| Brand Name | TORICH |
| Model Number | DIN 1629 |
| 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. |
| Section shape | Round/Square/Rectangular/Oval.etc | Secondary or not | Non-secondary |
| Technique | ERW | Application | Special Requests |
| Thickness | 0.4 - 50 mm | Surface treatment | Galvanized |
| Alloy or not | Non-alloy | Standard | ASTM,GB,JIS,BS |
| Grade | ST37.4 ST44.4 ST52.4 | Standard2 | DIN 1628 |
| Grade group | ST35-ST52 | Length | 1-12m/as customers' requests |
| Surface | Galvanized Coated | Outer diameter(round) | 20 - 677 mm |
| Product name | Galvanized Square Steel Pipe/Tube,ERW steel pipes | Brand Name | TORICH |
| Model Number | DIN 1629 | Certification | ISO 9001 ISO14001 TS16949 |
| Place of Origin | Zhejiang/China |
DIN 1628 specifies the requirements for electric resistance welded (ERW) non-alloy steel tubes. These tubes are primarily used in various applications requiring high strength and durability. The standard covers several grades, including ST37.4, ST44.4, and ST52.4, each with distinct mechanical properties and chemical compositions.
The specifications under DIN 1628 outline the dimensions, tolerances, and testing methods for the welded steel tubes. The standard ensures that the tubes meet specific quality and performance criteria suitable for various industrial applications.
The following table summarizes the chemical composition of the steel grades specified in DIN 1628:
| Steel Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) |
|---|---|---|---|---|---|
| ST37.4 | 0.17 | 0.40 | 1.40 | 0.045 | 0.045 |
| ST44.4 | 0.20 | 0.40 | 1.60 | 0.045 | 0.045 |
| ST52.4 | 0.22 | 0.40 | 1.70 | 0.045 | 0.045 |
The mechanical properties of the steel grades are critical for determining their suitability for specific applications. The following table outlines these properties:
| Steel Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|
| ST37.4 | 235 | 360-510 | 26 |
| ST44.4 | 275 | 400-550 | 24 |
| ST52.4 | 355 | 490-630 | 22 |
The DIN 1628 steel tubes are widely used in various industries, including:
While ST37.4, ST44.4, and ST52.4 are commonly used, there are alternative grades that may be suitable depending on the specific 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 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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