Gauge Chart

Stainless Steel Gauge Chart per ASTM
Gauge		ASTM
Gauge		Nominal	max	min.
28 Ga	mm	0.41	0.45	0.37
Cold Rolled	inch	0.0160	0.0175	0.0145
26 Ga	mm	0.45	0.49	0.41
Cold Rolled	inch	0.0180	0.0195	0.0165
24 Ga	mm	0.61	0.66	0.56
Cold Rolled	inch	0.0240	0.0260	0.0220
22 Ga	mm	0.74	0.79	0.69
Cold Rolled	inch	0.0291	0.0311	0.0271
20 Ga	mm	0.90	0.96	0.84
Cold Rolled	inch	0.0355	0.0380	0.0330
18 Ga	mm	1.22	1.30	1.15
Cold Rolled	inch	0.0482	0.0512	0.0452
16 Ga	mm	1.50	1.58	1.42
Cold Rolled	inch	0.0591	0.0621	0.0561
14 Ga	mm	1.90	2.00	1.80
Cold Rolled	inch	0.0749	0.0789	0.0709
13 Ga	mm	2.28	2.38	2.18
Cold Rolled	inch	0.0899	0.0939	0.0860
12 Ga	mm	2.67	2.80	2.54
Cold Rolled	inch	0.1051	0.1101	0.1001
11 Ga	mm	3.09	3.26	2.91
Cold Rolled	inch	0.1217	0.1287	0.1147
10 Ga	mm	3.45	3.62	3.27
Cold Rolled	inch	0.1357	0.1427	0.1287
8 Ga	mm	4.21	4.38	4.03
Cold Rolled	inch	0.1657	0.1727	0.1587
7 Ga	mm	4.69	4.86	4.51
Cold Rolled	inch	0.1847	0.1917	0.1777
3/16″	mm	4.76	5.09	4.51
Hot Rolled	inch	0.1875	0.2005	0.1775
1/4″	mm	6.35	6.85	6.10
Hot Rolled	inch	0.2500	0.2700	0.2400
3/8″	mm	9.52	10.27	9.27
Hot Rolled	inch	0.3750	0.4044	0.3650

Per ASTM A480/A480M-11b

For widths 50″ and under

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Gauge Chart

Stainless Steel Gauge Chart per ASTM

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