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Name | Square and rectangular tubes | |||||
Standard | ASTM A554, A312, A249, A269 and A270 | |||||
Material Grade | 304,316,201,202, 316L,430 | |||||
Size Range | 20x10mm--100x50mm,10x10mm-100x100mm, 8.5-101.6mm, we can also accept sizes above 101.6mm | |||||
Thickness | 0.3mm - 3.5mm | |||||
Length | 6m or as customers' request | |||||
Tolerance | a) Outer Diameter: +/- 0.2mm | |||||
b) Thickness: +/- 0.02mm | ||||||
c) Length: +/- 5mm | ||||||
Surface | 180G, 320G, 400G Satin / Hairline(Matt Finish, Brush, Dull Finish) 400G, 500G, 600G or 800G Mirror finish | |||||
Application | Ornamental tubes, Decoration construction, upholstery, industry instruments | |||||
Test | Squash test, Extended test, Water pressure test, Crystal rot test, Heat treatment, NDT | |||||
Chemical Composition of Material | Composition Material | 201 | 202 | 304 | 316 | 430 |
C | ≤0.15 | ≤0.15 | ≤0.08 | ≤0.08 | ≤0.12 | |
Si | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | ≤1.00 | |
Mn | 5.5-7.5 | 7.5-10 | ≤2.00 | ≤2.00 | ≤1.00 | |
P | ≤0.06 | ≤0.06 | ≤0.045 | ≤0.045 | ≤0.040 | |
S | ≤0.03 | ≤0.03 | ≤0.030 | ≤0.030 | ≤0.030 | |
Cr | 16-18 | 17-19 | 18-20 | 16-18 | 16-18 | |
Ni | 3.5-5.5 | 4-6 | 8-10.5 | 10-14 |
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Mo |
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| 2.0-3.0 |
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Mechanical Property | Material Item | 201 | 202 | 304 | 316 | |
Tensile Strength | ≥535 | ≥520 | ≥520 | ≥520 | ||
Yield Strength | ≥245 | ≥205 | ≥205 | ≥205 | ||
Extension | ≥30% | ≥30% | ≥35% | ≥35% | ||
Hardness (HV) | <253 | <253 | <200 | <200 | ||
Rectangular tubes