304 stainless steel plate thickness tolerance standard
Apr 29, 2025
השאר הודעה
304 Stainless Steel Plate
The thickness tolerance of 304 stainless steel plates depends on the manufacturing process (hot-rolled or cold-rolled) and applicable international standards. Below are the common tolerance standards used globally:
| ASTM A480/A480M | General standard for flat-rolled stainless steel plates |
| EN 10029 | Tolerance for hot-rolled steel plates Greater than or equal to 3 mm thick |
| EN ISO 9445-1 | Tolerance for cold-rolled stainless steel strips and sheets |
| JIS G4305 / JIS G4304 | Japanese standards for cold/hot-rolled stainless plates |
Tolerance Reference by Thickness (ASTM A480M – Cold Rolled)
| 0.30 – <0.40 | ±0.04 |
| 0.40 – <0.50 | ±0.05 |
| 0.50 – <0.80 | ±0.06 |
| 0.80 – <1.00 | ±0.07 |
| 1.00 – <1.50 | ±0.08 |
| 1.50 – <2.00 | ±0.09 |
| 2.00 – <2.50 | ±0.10 |
| 2.50 – <3.00 | ±0.13 |
Tolerance Reference for Hot-Rolled Plates (EN 10029 – Class A)
| 3 – <6 | +0.6 / –0.4 |
| 6 – <10 | +0.8 / –0.4 |
| 10 – <15 | +1.0 / –0.4 |
| 15 – <25 | +1.2 / –0.5 |
| 25 – <40 | +1.4 / –0.6 |
Cold-rolled plates have tighter tolerances and are preferred for precision applications. Tolerance class may be specified as Class A (standard), B, C, or D (special precision) under EN standards.
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