TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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1026 DOM steel tubing is made from steel that is of a low /mild carbon (non-alloy) and this kind of steel has been developed for the primary purpose of creating wrought products. 1026 seamless tubing is commonly used in construction, appliances and automobiles. The carbon content of this steel can be upto 0.28%, but according to AISI standards, this steel would still qualify as grade 1026 steel. these seamless tubes are manufactured by various methods such as SRB, Cold Drawn, Honed, Cold Rolled and Hot Rolled.
DOM round steel tube is actually not a type of tubing, but a process that is applied to tubing after it is initially constructed. It is Drawn Over a Mandrel, which "cold works" it, giving it more exact dimensions relative to the inside and outside diameters, a smoother finish, and better alignment of the crystal lattice structure. Although it is almost always referred to as a SEAMLESS tube, technically it is NOT seamless tubing, and it started life as some sort of EW (electric welded) tubing. During the manufacturing process, the weld line becomes nearly undetectable, thus it is referred to as seamless. It is considered as high strength, high quality tube, and is normally constructed from SAE 1020 or 1026 steel. DOM mild steel is commonly used in the manufacturing of race cars and motorcycle frames.
Specifications
UNS# G10260 1026 CARBON STEEL
ASTM A-510 GENERAL REQUIREMENTS FOR WIRE RODS & COURSE ROUND WIRE, CARBON STEEL
ASTM A-512 COLD-DRAWN BUTTWELD CARBON STEEL MECHANICAL TUBING
ASTM A-513 TYPE 5 (DOM) ELECTRIC-RESISTANT-WELDED CARBON & ALLOY TUBING
ASTM A-519 SEAMLESS CARBON & ALLOY MECHANICAL TUBING
| Properities | |
| Tensile Strength, psi | 87,000 |
| Yield Strength, psi | 72,000 |
| Elongation | 10% |
| Rockwell Hardness | B89 |
| Chemistry | |
| Iron (Fe) | 99.08 - 99.53% |
| Carbon (C) | 0.18 - 0.23% |
| Phosphorous (Ph) | 0.04% max |
| Sulphur (S) | 0.05% max |
| Manganese (Mn) | 0.30 - 0.60% |
| Outside Diameter Tolerances for Round Hot-Finished Tubing A, B, C | ||
| Outside Diameter Size Range, In.(mm) | Outside Diameter Tolerance, in. (mm) | |
| Over (+) | Under (-) | |
| up to 2.999 (76.17) | 0.020 (0.51) | 0.020 (0.51) |
| 3.000-4.499 (76.20-114.27) | 0.025 (0.64) | 0.025 (0.64) |
| 4.500–5.999 (114.30–152.37) | 0.031 (0.79) | 0.031 (0.79) |
| 6.000–7.499 (152.40–190.47) | 0.037 (0.94) | 0.037 (0.94) |
| 7.500–8.999 (190.50–228.57) | 0.045 (1.14) | 0.045 (1.14) |
| 9.000–10.750 (228.60–273.05) | 0.050 (1.27) | 0.050 (1.27) |
Product Pictures:
Eddy Current Test and Ultrasonic Test:
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