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stainless steel square tube
1) standard: ASTM A554;
2) Grade: 201, 304
3) OD: 5/16"-6" (8mm--152mm)
4) Wall thickness: 0. 25mm to 2.0mm
5) Surface:polish, hairline, satin finish
6) Application:Mechanical and structural,decoration,water supplying,liquid conveying
7)Test:Eddy current/hydrostatic, mechanical ,chemical composition analys
8)Packing:Plastic bag , wooden box or according to customers requests
9)Tolerance:
Allow the deviation of outer diameter and the length of the rim | ||
The statc of providing product | outer diameter and the length of the rim | Allow the deviation |
(SB,SP) | ≤25 | ±0.25 |
>25-40 | ±0.30 | |
>40-50 | ±0.36 | |
>50-60 | ±0.40 | |
>60-70 | ±0.46 | |
>70-80 | ±0.48 | |
>80 | ±0.60%D | |
(SNB SA) | ≤25 | ±0.30 |
>25-40 | ±0.36 | |
>40-50 | ±0.40 | |
10) chemcial composition(%):
Trademark of steel and chemcial composition(%) | ||||||||
Trademard | C | Si | Mn | P | S | Ni | Cr | N |
0Cr18Ni9(304) | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 8.00-11.00 | 17.00-19.00 | |
1Cr18Ni9(302) | ≤0.15 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 8.00-10.00 | 17.00-19.00 | |
0Cr16Ni8(HH04) | ≤0.09 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 7.00-10.00 | 15.00-19.00 | |
1Cr14Mn9Ni3N(HH02) | ≤0.15 | ≤1.00 | 7.50-12.00 | ≤0.060 | ≤0.03 | 2.50-5.00 | 13.00-17.00 | ≤0.25 |
1Cr13Mn8Ni1N(HH01) | ≤0.15 | ≤1.00 | 7.50-15.00 | ≤0.060 | ≤0.03 | 0.60-2.50 | 12.00-16.00 | ≤0.25 |
11) Mechanics capability
Mechanics capability |
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Trademard | σp0.2 Mpa | σb Mpa | σ5 % | HB |
0Cr18Ni9(304) | ≥205 | ≥520 | ≥35 | ≤190 |
1Cr18Ni9(302) | ||||
0Cr16Ni8(HH04) | ||||
1Cr14Mn9Ni3N(HH02) | ≥220 | ≥550 | ≥25 | ≤250 |
1Cr13Mn8Ni1N(HH01) |