Conversion Table

GAUGE INCHES MM
1GA 0.2810 7.1374
2GA 0.2660 6.7564
3GA 0.2500 6.3500
4GA 0.2340 5.9436
5GA 0.2190 5.5626
6GA 0.2030 5.1562
7GA 0.1870 4.7498
8GA 0.1650 4.1910
9GA 0.1525 3.8735
10GA 0.1350 3.4290
11GA 0.1200 3.0480
12GA 0.1050 2.6670
13GA 0.0900 2.2860
14GA 0.0750 1.9050
15GA 0.0685 1.7399
16GA 0.0600 1.5240
17GA 0.0560 1.4224
18GA 0.0480 1.2192
19GA 0.0400 1.0160
20GA 0.0355 0.9017
21GA 0.0320 0.8128
22GA 0.0300 0.7620
23GA 0.0270 0.6858
24GA 0.0240 0.6096
25GA 0.0200 0.5080
26GA 0.0180 0.4572
27GA 0.0169 0.4293
28GA 0.0150 0.3810
29GA 0.0140 0.3556
30GA 0.0130 0.3302
31GA 0.0124 0.3150
32GA 0.0102 0.2591
33GA 0.0094 0.2388
34GA 0.0085 0.2159
35GA 0.0078 0.1981
36GA 0.0070 0.1778
37GA 0.0066 0.1676
38GA 0.0060 0.1524
Weight LBS KGS Metrics Ton Short Ton Long Ton
1 LB 0.453592 0.000453592 0.0005 0.000446429
1 KG 2.20462 --- 0.001 0.00110231 0.000984207
1 MT 2204.62 1000 --- 1.10231 0.984207
1 SHORT TON 2000 907.185 0.907185 --- 0.892857
1 LONG TON 2240 1016.05 1.01605 1.12 ---

Chemical Composition of Stainless Steel Grades

Designation Cr Ni C max Mn max P max Si max other
201 (AISI) 16-18 3.5-5.5 0.15 7.5 0.0006 1.0 N0.25 Max
202 17-19 4-6 0.15 10.0 0.0006 1.0 N0.25 Max
204 18 5.0 0.07 9 --- 0.05 N0.2
205 17 1.4 0.18 15 0.03 0.04 N0.35
               
301 16-18 6-8 0.15 2 0.045 1.0
302 17-19 8-10 0.15 2 0.045 1.0
303 17-19 8-10 0.15 2 0.20 1.0 S0.15 Min
303 SE 17-19 8-10 0.15 2 0.20 1.0 Se0.15 Min
304 18-20 8-12 0.08 2 0.045 1.0
304 L 18-20 8-12 0.03 2 0.045 1.0
305 17-19 10-13 0.12 2 0.045 1.0
308 19-21 10-12 0.08 2 0.045 1.0
309 22-24 12-15 0.20 2 0.045 1.0
309 S 22-24 12-15 0.08 2 0.045 1.0
310 24-26 19-22 0.25 2 0.045 1.5
310 S 24-26 19-22 0.08 2 0.045 1.5
311 18-20 24-26 0.25 2 0.045 3.0
312 23-26 8-11 0.25 2 0.045 3.0
316 16-18 10-14 0.08 2 0.045 1.0 Mo 2.0 3.0
316 L 16-18 10-14 0.03 2 0.045 1.0 Mo 2.0 3.0
317 18-20 11-15 0.08 2 0.045 1.0 Mo 3.0 4.0
321 17-19 9-12 0.08 2 0.045 1.0 Ti 5xC Min
329 23-30 2.5-5 0.20 2 --- --- Mo 1/1.5
330 14-16 33-36 0.25 2 0.045 0.75
347 17-19 9-13 0.08 2 0.045 1.0 Cb-Ta 10xC Min
348 17-19 9-13 0.08 2 0.045 1.0 Cb-Ta 10xC Max
Ta 0.10 Max
Co 0.10 Max
403 11.5-13 --- 0.15 1 0.04 0.5
405 11.5-14.5 --- 0.8 1 0.04 1.0 Al 0.10 0.30
409 10.5-13.5 --- 0.05 0.55 0.50 0.50 Al 0.5 Ti Q45
410 11.5-13.5 --- 0.15 1 0.04 1.0
414 11.5-13.5 1.25-2.5 0.15 1 0.04 1.0
416 12-14 --- 0.15 1.25 0.06 1.0 S 0.15 Min
420 12-14 --- 0.15MIN 1 0.04 1.0
430 14-18 --- 0.12 1 0.04 1.0
431 15-17 1.25-2.5 0.20 1 0.04 1.0
434 16-18 --- 0.12 1 0.04 1.0 Mo 1.0
439 17.75/18.75 0.5 0.07 10.60 --- 2.6
440 A 16-18 --- 0.75 1 0.04 1.0 Mo 0.75 Max
440 B 16-18 --- 0.95 1 0.04 1.0 Mo 0.75 Max
440 C 16-18 --- 1.20 1 0.04 1.0 Mo 0.75 Max
442 18-23 --- 0.2 1.5 0.04 1.0
446 23-27 --- 0.2 1.5 0.04 1.0 Mo 0.25 Max
               
501 4-6 --- 0.1 1 0.04 --- Mo 0.4 0.65
502 4-6 --- 0.1 1 0.04 --- Mo 0.4 0.65