I. GB4237-2007 Hot Rolled Stainless Steel Plate and Strip
1. Allowable thickness deviation for thick steel plate
Unit: Millimeters
| Nominal Thickness | Nominal width | |||
| >1000~≤1500 | >1500~≤2000 | |||
| Regular Accuracy | Greater precision | Regular Accuracy | Greater precision | |
| >3.0~≤4.0 | ±0.31 | ±0.28 | ±0.33 | ±0.31 |
| >4.0~≤5.0 | ±0.33 | ±0.30 | ±0.36 | ±0.34 |
| >5.0~≤6.0 | ±0.36 | ±0.33 | ±0.40 | ±0.37 |
| >6.0~≤8.0 | ±0.40 | ±0.36 | ±0.44 | ±0.40 |
| >8.0~≤10.0 | ±0.44 | ±0.40 | ±0.48 | ±0.43 |
| >10.0~≤13.0 | ±0.48 | ±0.44 | ±0.52 | ±0.47 |
| >13.0~≤25.0 | ±0.53 | ±0.48 | ±0.57 | ±0.52 |
| ＞25.0～≤30.0 | ±0.56 | ±0.51 | ±0.60 | ±0.55 |
| >30.0~≤34.0 | ±0.60 | ±0.55 | ±0.65 | ±0.60 |
| ＞34.0～≤40.0 | ±0.70 | ±0.65 | ±0.70 | ±0.65 |
| >40.0~≤50.0 | ±0.80 | ±0.75 | ±0.85 | ±0.80 |
| >50.0~≤60.0 | ±0.95 | ±0.90 | ±1.00 | ±0.95 |
| >60.0~≤80.0 | ±0.95 | ±0.90 | ±1.3 | ±1.25 |
| >80.0~≤100.0 | ±1.0 | ±0.95 | ±1.5 | ±1.45 |
| >100.0~≤150.0 | ±1.10 | ±1.05 | ±1.7 | ±1.65 |
| >150.0~≤200.0 | ±1.2 | ±1.15 | ±2.0 | ±1.95 |
2. Allowable thickness deviation for cut-to-length plate and steel strip
| Nominal Thickness | Nominal width | |||||
| ≤1200 | >1200~≤1500 | >1500~≤1800 | ||||
| Regular Accuracy | Greater precision | Regular Accuracy | Greater precision | Regular Accuracy | Greater precision | |
| >2.0~≤2.5 | ±0.22 | ±0.20 | ±0.25 | ±0.23 | ±0.29 | ±0.27 |
| >2.5~≤3.0 | ±0.25 | ±0.23 | ±0.28 | ±0.26 | ±0.31 | ±0.28 |
| >3.0~≤4.0 | ±0.28 | ±0.26 | ±0.31 | ±0.28 | ±0.33 | ±0.31 |
| >4.0~≤5.0 | ±0.31 | ±0.28 | ±0.33 | ±0.30 | ±0.36 | ±0.33 |
| >5.0~≤6.0 | ±0.33 | ±0.31 | ±0.36 | ±0.33 | ±0.38 | ±0.35 |
| >6.0~≤8.0 | ±0.38 | ±0.35 | ±0.39 | ±0.36 | ±0.40 | ±0.37 |
| >8.0~≤10.0 | ±0.42 | ±0.39 | ±0.43 | ±0.40 | ±0.45 | ±0.41 |
| >10.~≤13.0 | ±0.45 | ±0.42 | ±0.47 | ±0.44 | ±0.49 | ±0.45 |
II. GB4237-92 Hot Rolled Stainless Steel Plate and Strip
The steel currently purchased complies with the GB4237-92 standard.
1. Allowable tolerance for thick steel plate
| Nominal Thickness | Negative Deviation | Thickness deviation allowed for the following widths | ||||
| >1200~1500 | >1500~1700 | >1700~1800 | >1800~2000 | >2000~2300 | ||
| >13~25 | 0.8 | 0.2 | 0.3 | 0.4 | 0.6 | 0.8 |
| >25~30 | 0.9 | 0.2 | 0.3 | 0.4 | 0.6 | 0.8 |
| >30~34 | 1 | 0.3 | 0.3 | 0.4 | 0.6 | 0.8 |
| >34~40 | 1.1 | 0.4 | 0.5 | 0.6 | 0.7 | 0.9 |
| >40~50 | 1.2 | 0.5 | 0.6 | 0.7 | 0.8 | 1 |
| >50~60 | 1.3 | 0.7 | 0.8 | 0.8 | 1 | 1.1 |
| >60~80 | 1.8 | – | 1 | 1 | 1 | 1 |
| >80~100 | two | – | 1.2 | 1.2 | 1.2 | 1.2 |
| >100~150 | 2.2 | – | 1.3 | 1.3 | 1.3 | 1.4 |
| >150~200 | 2.6 | – | 1.5 | 1.5 | 1.5 | 1.6 |
2. Allowable deviation for steel plate and steel strip
| Nominal Thickness | Thickness deviation allowed for the following widths | |||||
| (Steel plate and steel strip) | 600~750 | >750~1000 | >1000~1500 | |||
| Greater precision | Regular Accuracy | Greater precision | Regular Accuracy | Greater precision | Regular Accuracy | |
| >0.35~0.50 | ±0.05 | ±0.07 | ±0.05 | ±0.07 | – | – |
| >0.50~0.60 | ±0.06 | ±0.08 | ±0.06 | ±0.08 | – | – |
| >0.60~0.75 | ±0.07 | ±0.09 | ±0.07 | ±0.09 | – | – |
| >0.75~0.90 | ±0.08 | ±0.10 | ±0.08 | ±0.10 | – | – |
| >0.90~1.10 | ±0.09 | ±0.11 | ±0.09 | ±0.12 | – | – |
| > 1.10 ~ 1.20 | ±0.10 | ±0.12 | ±0.11 | ±0.13 | ±0.11 | ±0.15 |
| > 1.20 ~ 1.30 | ±0.11 | ±0.13 | ±0.12 | ±0.14 | ±0.12 | ±0.15 |
| > 1.30 ~ 1.40 | ±0.11 | ±0.14 | ±0.12 | ±0.15 | ±0.12 | ±0.18 |
| >1.40~1.60 | ±0.12 | ±0.15 | ±0.13 | ±0.15 | ±0.13 | ±0.18 |
| >1.60~1.80 | ±0.13 | ±0.15 | ±0.14 | ±0.17 | ±0.14 | ±0.18 |
| >1.80~2.00 | ±0.14 | ±0.16 | ±0.15 | ±0.17 | ±0.16 | ±0.18 |
| > 2.00 ~ 2.20 | ±0.15 | ±0.17 | ±0.16 | ±0.18 | ±0.17 | ±0.19 |
| ＞2.20～2.50 | ±0.16 | ±0.18 | ±0.17 | ±0.19 | ±0.185 | ±0.20 |
| >2.50~3.00 | ±0.17 | ±0.19 | ±0.18 | ±0.20 | ±0.19 | ±0.21 |
| >3.00~3.50 | ±0.18 | ±0.20 | ±0.19 | ±0.21 | ±0.20 | ±0.22 |
| >3.50~4.00 | ±0.21 | ±0.23 | ±0.22 | ±0.26 | ±0.24 | ±0.28 |
| ＞4.00～5.50 | -0.333333333 | -0.5 | -0.5 | -3 | -0.25 | -0.6 |
| ＞5.00～7.5 | -0.25 | -0.4 | -0.2 | -0.333333333 | -0.2 | -0.416666667 |
| ＞7.50～10.0 | -0.142857143 | -0.25 | -0.142857143 | -0.25 | -0.285714286 | -0.375 |
| >10.0~13.0 | -0.142857143 | -0.25 | -0.142857143 | -0.25 | -0.285714286 | -0.375 |
III. GB3280-2007 Cold Rolled Stainless Steel Plate and Strip
Allowable thickness deviation for steel plate and steel strip:
| Nominal Thickness | Nominal width | ||
| ≤1000 | ≥1000~1≤300 | ≥1300~≤2100 | |
| ≥0.3-0.5 | ±0.04 | ±0.45 | – |
| ≥0.5-0.6 | ±0.045 | ±0.05 | – |
| ≥0.6-0.8 | ±0.05 | ±0.055 | – |
| ≥0.8-1.00 | ±0.040 | ±0.045 | |
| ≥1.00-1.20 | ±0.055 | ±0.06 | ±0.065 |
| ≥1.20-1.50 | ±0.07 | ±0.08 | ±0.09 |
| ≥1.50-2.00 | ±0.08 | ±0.09 | ±0.10 |
| ≥2.00-2.50 | ±0.09 | ±0.10 | ±0.11 |
| ≥25.0-3.00 | ±0.11 | ±0.12 | ±0.12 |
| ≥3.00-4.00 | ±0.13 | ±0.14 | ±0.14 |
| ≥4.00-5.00 | ±0.14 | ±0.15 | ±0.15 |
| ≥5.00-6.50 | ±0.15 | ±0.16 | ±0.16 |
| ≥6.50-8.00 | ±0.16 | ±0.17 | ±0.17 |
4. The steel currently purchased follows the GB3280-92 standard
GB3280-1992 Cold Rolled Stainless Steel Plate and Steel Strip
| Nominal Thickness | Nominal width | |||
| A-level accuracy | B-level accuracy | |||
| ≤1500 | >1500~≤2000 | ≤1500 | >1500~≤2000 | |
| >0.2~0.5 | ±0.04 | – | ±0.05 | – |
| >0.5~0.65 | ±0.05 | – | ±0.06 | – |
| >0.65~0.90 | ±0.06 | – | ±0.07 | – |
| >0.90~1.10 | ±0.07 | ±0.09 | ±0.09 | ±0.11 |
| >1.10~1.20 | ±0.09 | ±0.10 | ±0.10 | ±0.12 |
| > 1.20 ~ 1.40 | ±0.10 | ±0.12 | ±0.11 | ±0.14 |
| >1.40~1.50 | ±0.11 | ±0.13 | ±0.12 | ±0.15 |
| >1.50~1.80 | ±0.12 | ±0.14 | ±0.14 | ±0.16 |
| >1.80~2.00 | ±0.13 | ±0.15 | ±0.15 | ±0.17 |
| > 2.00 ~ 2.50 | ±0.14 | ±0.17 | ±0.16 | ±0.18 |
| >2.50~3.00 | ±0.16 | ±0.19 | ±0.18 | ±0.20 |
| >3.00~3.50 | ±0.18 | ±0.20 | ±0.20 | ±0.21 |
| >3.50~4.00 | ±0.19 | ±0.21 | ±0.22 | ±0.24 |
| > 4.00 ~ 5.00 | ±0.20 | ±0.22 | ±0.23 | ±0.25 |
V. Thickness Tolerance for Japanese Hot Rolled Stainless Steel SUS JIS G4304-2005
Unit: Millimeters
| Nominal Thickness | Steel plate width | |||
| 1000~1250 | 1250~1600 | 1600~2000 | 2000 ~ 2500 | |
| 2~2.5 | ±0.25 | ±0.30 | – | – |
| 2.5~3.15 | ±0.30 | ±0.35 | ±0.40 | – |
| 3.15~4.0 | ±0.35 | ±0.40 | ±0.45 | – |
| 4.0~5.0 | ±0.40 | ±0.45 | ±0.50 | ±0.60 |
| 5.0~6.0 | ±0.50 | ±0.55 | ±0.60 | ±0.70 |
| 6.0~8.0 | ±0.60 | ±0.65 | ±0.65 | ±0.75 |
| 8.0~10.0 | ±0.65 | ±0.65 | ±0.65 | ±0.80 |
| 10.0~16.0 | ±0.70 | ±0.70 | ±0.70 | ±0.85 |
| 16.0~25.0 | ±0.80 | ±0.80 | ±0.80 | ±0.95 |
| 25.0~40.0 | ±0.90 | ±0.90 | ±0.90 | ±1.10 |
| 40.0~63.0 | ±1.0 | ±1.0 | ±1.20 | ±1.20 |
| 63.0~100 | ±1.10 | ±1.20 | ±1.30 | ±1.30 |
| 100~160 | ±1.30 | ±1.30 | ±1.40 | ±1.40 |
| 160~200 | ±1.60 | ±1.60 | ±1.70 | ±1.70 |
SAW. Thickness Tolerance for Cold Rolled Stainless Steel Japanese SUS JIS G4305-2005
Unit: Millimeters
| Nominal Thickness | Steel plate width | |
| ~1250 | 1250~1600 | |
| 0.16~0.25 | ±0.03 | – |
| 0.25~0.30 | ±0.04 | – |
| 0.30~0.60 | ±0.05 | ±0.08 |
| 0.60~0.80 | ±0.07 | ±0.09 |
| 0.80~1.00 | ±0.09 | ±0.10 |
| 1.00~1.25 | ±0.10 | ±0.12 |
| 1.25~1.60 | ±0.12 | ±0.15 |
| 1.60~2.00 | ±0.15 | ±0.17 |
| 2.00 ~ 2.50 | ±0.17 | ±0.20 |
| 2.50~3.15 | ±0.22 | ±0.25 |
| 3.15~4.00 | ±025 | ±0.30 |
| 4:00~5:00 | ±0.35 | ±0.40 |
| 5:00 ~ 6:00 | ±0.40 | ±0.45 |
| 6:00 ~ 8:00 | ±0.50 | ±0.50 |
| 8:00 ~ 10:00 | ±0.60 | ±0.60 |
| 10am~4pm | ±0.70 | ±0.70 |
| 16.0~25.0 | ±0.80 | ±0.80 |
VII. US ASTM A240 A480 Steel Plate Thickness Tolerance
1. Allowable Thickness Deviation for ASTM A480 Hot Rolled Wide Coil and Cut-to-Length Plate
| Thickness A,in.(mm) |
Allowable deviation, for specified width （w）,±，in.(mm) | |
| w≤60(1525) | w>60(1525) | |
| 0.072(1.83) | 0.006(0.15) | 0.009(0.22) |
| >0.072(1.83)-0.083(2.11) | 0.007(0.18) | 0.010(0.25) |
| >0.083(2.11)-0.098(2.49) | 0.008(0.20) | 0.011(0.27) |
| >0.098(2.49)-0.114(2.90) | 0.009(0.23) | 0.012(0.30) |
| >0.114(2.90)-0.130(3.30) | 0.011(0.27) | 0.013(0.33) |
| >0.130(3.30)-0.145(3.68) | 0.012(0.30) | 0.013(0.33) |
| >0.145(3.68)-0.1875(4.76) | 0.013(0.33) | 0.014(0.35) |
| >0.1875(4.76)-0.250(6.35) | -0.010(0.25),+0.020(0.50) | -0.010(0.25),+0.020(0.50) |
| >0.250(6.35)-0.3125(7.94) | -0.010(0.25),+0.022(0.55) | -0.010(0.25),+0.022(0.55) |
| >0.3125(7.94) | -0.010(0.25),+0.030(0.75) | -0.010(0.25),+0.030(0.75) |
| The thickness of a thin board is measured no less than 3/8 inch (9.52 mm) from the edge. | ||
2. Allowable Thickness Deviation for ASTM A480 Cold Rolled Wide Coil and Cut-to-Length Plate
| Thickness A、B，in.(mm) |
Allowable deviation, for specified width （w）,±，in.(mm) | ||
| W≤40(1000) | 40(1000)＜w≤50(1300) | 50(1300)＜w≤84(2100) | |
| 0.012(0.30) | 0.001(0.030) | – | – |
| 0.016(0.40) | 0.0015(0.04) | 0.0015(0.04) | – |
| 0.020(0.50) | 0.0015(0.04) | 0.0015(0.04) | – |
| 0.024(0.60) | 0.002(0.05) | 0.002(0.05) | – |
| 0.032(0.80) | 0.002(0.05) | 0.002(0.05) | – |
| 0.040(1.00) | 0.0025(0.06) | 0.0025(0.06) | 0.003(0.08) |
| 0.047(1.20) | 0.003(0.08) | 0.003(0.08) | 0.003(0.08) |
| 0.059(1.50) | 0.003(0.08) | 0.003(0.08) | 0.004(0.10) |
| 0.079(2.00) | 0.004(0.10) | 0.004(0.10) | 0.0045(0.11) |
| 0.098(2.50) | 0.004(0.10) | 0.004(0.10) | 0.005(0.13) |
| 0.118(3.00) | 0.005(0.13) | 0.005(0.13) | 0.006(0.15) |
| 0.157(4.00) | 0.007(0.17) | 0.007(0.17) | 0.007(0.17) |
| 0.197(5.00) | 0.007(0.17) | 0.007(0.17) | 0.0075(0.19) |
| 0.236(6.00) | 0.007(0.17) | 0.008(0.20) | 0.009(0.23) |
| 0.3125(8.00) | 0.007(0.17) | 0.009(0.23) | 0.010(0.25) |
| The thickness of a thin board is measured at a point not less than 3/8 inch (9.52 mm) from the edge. | |||
| B When outside the specified thickness, the deviation from the next thickest size is used. | |||
3. Thickness Deviation Allowed for Hot Rolled Medium Plate ASTM A480 A, B
| Thickness |
