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 | 20-30days upon products |
| Packaging Details | In bundles or in wooden boxes. |
| Application | Structure Pipe,Hydraulic Pipe,Construction,Fluid Pipe,Oil Pipe |
| Outer diameter(round) | 30 - 426 mm |
| Length | 6M or as requirement,As customer's require,8m,5.8m,2.5-8m |
| Thickness | 2 - 50 mm |
| Standard | ASTM,DIN,GB,JIS,API |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Grade | 1008 1010 1015 1018 1020 |
| Brand Name | TORICH |
| Model Number | ASTM A519 T5 |
| 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 | 20-30days upon products | Packaging Details | In bundles or in wooden boxes. |
| Application | Structure Pipe,Hydraulic Pipe,Construction,Fluid Pipe,Oil Pipe | Outer diameter(round) | 30 - 426 mm |
| Length | 6M or as requirement,As customer's require,8m,5.8m,2.5-8m | Thickness | 2 - 50 mm |
| Standard | ASTM,DIN,GB,JIS,API | Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Grade | 1008 1010 1015 1018 1020 | Brand Name | TORICH |
| Model Number | ASTM A519 T5 | Certification | API,CE,ISO,ISO9001-2008,ISO9001 |
| Place of Origin | Zhejiang/China | ||
| High Light | DOM round steel tube for mechanical use ，1020 low carbon welded pipe ，welded steel tube with warranty | ||
Drawn Over Mandrel (DOM) round steel tubing is produced from an electric-resistance-welded (ERW) tube that is cold drawn through dies and over a mandrel to remove weld flash, achieving precise outside and inside diameters, superior surface finish, and enhanced mechanical properties. This product is manufactured from low-carbon AISI 1020 steel, noted for its excellent weldability, formability, and machinability.
ASTM Compliance: ASTM A513 Type 5 (DOM mechanical tubing)
Outer Diameter: 0.1875" – 5" (4.8 – 127 mm)
Wall Thickness: 0.028" – 0.625" (0.7 – 15.9 mm)
Tolerances (OD): per ASTM A513 Type 5 (e.g., +0.005"/0.000 for 0.500"–1.699" OD)
Length: Standard 6 m (20 ft); custom lengths available on request
The table below compares key alloying limits for five common low-carbon steel grades used in DOM and precision tubing:
| Grade | C (%) | Mn (%) | P (max %) | S (max %) |
|---|---|---|---|---|
| AISI 1008 (G10080) | 0.08 – 0.10 | 0.30 – 0.50 | 0.040 | 0.050 |
| AISI 1010 (G10100) | 0.080 – 0.13 | 0.30 – 0.60 | 0.040 | 0.050 |
| AISI 1015 (G10150) | 0.13 – 0.18 | 0.30 – 0.60 | 0.040 | 0.050 |
| AISI 1018 (G10180) | 0.15 – 0.20 | 0.60 – 0.90 | 0.040 | 0.050 |
| AISI 1020 (G10200) | 0.18 – 0.23 | 0.30 – 0.60 | 0.040 | 0.050 |
Mechanical properties of cold-drawn tubing for these grades are shown below:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| AISI 1008 | 340 | 285 | 20 | 95 |
| AISI 1010 | 365 | 305 | 20 | 105 |
| AISI 1015 | 385 | 325 | 18 | 111 |
| AISI 1018 | 440 | 370 | 15 | 126 |
| AISI 1020 | 420 | 350 | 15 | 121 |
Precise Dimensional Control: Achieves close OD/ID tolerances via cold drawing over mandrel.
Superior Surface Finish: Weld flash removed; smooth inner and outer surfaces.
Enhanced Strength: Cold work increases yield and tensile strengths over standard ERW tubing.
Excellent Machinability: Low-carbon AISI 1020 base offers good machining and weldability.
Cost-Effective: Manufactured from widely available low-carbon alloy with efficient ERW and cold-drawn processes.
ASTM A513 Type 5: Electric-resistance-welded, cold-drawn mechanical tubing
EN: DIN EN 10250-2 C22E (1.1151) cold-drawn carbon steel round tubes
GOST: GOST 10704-91 electric-resistance-welded steel tubes
JIS: JIS G3445 STKM 13B carbon steel mechanical structural tubes
GB: GB/T 31315-2014 cold drawn or cold rolled precision weld steel tubes for mechanical structures
Mechanical Equipment—widely used where high strength, accuracy, and surface finish are critical:
Hydraulic Systems: Cylinder barrels, piston rods
Automotive Industry: Axles, gears, bushings, steering components
Industrial Machinery: Shafts, spindles, couplings, structural supports
Agricultural Machinery: Drive shafts, rollers, frame elements
Furniture & Construction: Support tubes, frame members requiring precise fit
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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