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 - 425 mm, |
| Thickness | 2 - 100 mm,0 |
| Standard | ASTM,DIN,GB,JIS,API |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn |
| Grade | 1008 1010 1015 1018 1020 |
| Special pipe | Thick Wall Pipe,API Pipe,Precision steel tube, |
| Length | 6M or as requirement |
| Brand Name | TORICH |
| Model Number | Dom Round Tubing |
| Certification | ISO9001 ISO 14001 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 | 20-30days upon products | Packaging Details | In bundles or in wooden boxes. |
| Application | Structure Pipe,Hydraulic Pipe,Construction,Fluid Pipe,Oil Pipe | Outer diameter(round) | 30 - 425 mm, |
| Thickness | 2 - 100 mm,0 | Standard | ASTM,DIN,GB,JIS,API |
| Technique | Cold Drawn,Hot Rolled,Cold Rolled,ERW,Hot Rolled/Cold Drawn | Grade | 1008 1010 1015 1018 1020 |
| Special pipe | Thick Wall Pipe,API Pipe,Precision steel tube, | Length | 6M or as requirement |
| Brand Name | TORICH | Model Number | Dom Round Tubing |
| Certification | ISO9001 ISO 14001 TS16949 | Place of Origin | Zhejiang/China |
| High Light | DOM carbon steel tube for machinery ，precision DOM steel tube 30-425mm ，carbon steel tube with warranty | ||
Dom Round Tubing—commonly referred to as DOM (Drawn Over Mandrel)—is produced from electric-resistance-welded (ERW) steel (typically AISI 1020, 1026, or equivalent). It undergoes cold drawing over a mandrel to remove weld flash, enhancing dimensional accuracy, concentricity, strength, and surface quality. It is widely used in precision machinery due to these enhanced characteristics.
Standards: Conforms to ASTM A513 Type 5 (mechanical tubing), as well as international equivalents like EN DIN EN 10250‑2 (C22E), GOST 10704‑91, JIS G3445 STKM 13B, and GB/T 31315‑2014.
Typical Grades: AISI 1020 is most common; 1026 is used for larger ODs or thicker walls. Some sources also list ST52.3.
Size Range: OD from ~0.188″ to 12″ (4.8 mm–127 mm); wall thickness from 0.028″ to 0.625″ (0.7 mm–15.9 mm).
Here's a table comparing chemical composition among five common low‑carbon steel grades used in DOM/precision tubing:
| Grade | C (%) | Mn (%) | P (max %) | S (max %) |
|---|---|---|---|---|
| AISI 1008 | 0.08–0.10 | 0.30–0.50 | 0.040 | 0.050 |
| AISI 1010 | 0.08–0.13 | 0.30–0.60 | 0.040 | 0.050 |
| AISI 1015 | 0.13–0.18 | 0.30–0.60 | 0.040 | 0.050 |
| AISI 1018 | 0.15–0.20 | 0.60–0.90 | 0.040 | 0.050 |
| AISI 1020 | 0.18–0.23 | 0.30–0.60 | 0.040 | 0.050 |
Mechanical properties for the same five grades are outlined 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 |
Tight Dimensional Tolerances: Cold drawing yields excellent OD/ID accuracy and concentricity
Surface Finish: Smooth, flash-free internal and external surfaces
Enhanced Mechanical Performance: Improved tensile/yield strength from cold worked processing; still offers great machinability and weldability, especially in 1020
Cost-Efficient: Offers high performance at lower cost relative to seamless options
EN: DIN EN 10250‑2 (C22E)
GOST: GOST 10704‑91
JIS: JIS G3445 STKM 13B
GB: GB/T 31315‑2014 (cold‑drawn/rolled precision welded tubes)
DOM tubing is favored in precision-sensitive mechanical applications. Typical usage includes:
Hydraulic Systems: Cylinder barrels, piston rods
Automotive: Axles, gears, bushings, steering components
Industrial Machinery: Shafts, spindles, couplings, structural supports
Agricultural Equipment: Drive shafts, rollers, frame members
Consumer & Construction: Furniture frames, accurate support members
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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