304 304l 316 316l 321 1.4301 1.4306 1.4307 1.4401 1.4404 s30400 s30403 s32100 s31600 s31603 austenite stainless steel

Austenite Stainless Steel--304 304l 316 316l 321 1.4301 1.4306 1.4307 1.4401 1.4404 s30400 s30403 s32100 s31600 s31603

1. Heat Treating Requirements

Grade	Heat Treat Type	Austenitizing/Solutioning Temperature,min or range, ℉[℃]	Cooling Media	Quenching Cool Below℉[℃]
F304	Solution treat and quench	1900[1040]	liquid	500[260]
F304L	Solution treat and quench	1900[1040]	liquid	500[260]
F316	Solution treat and quench	1900[1040]	liquid	500[260]
F316L	Solution treat and quench	1900[1040]	liquid	500[260]
F321	Solution treat and quench	1900[1040]	liquid	500[260]

2. Chemical Composition of A182 F304/304L/316/316L/321

Grade	F304	F304L	F316	F316L	F321
UNS	S30400	S30403	S31600	S31603	S32100
Carbon	0.08	0.03	0.08	0.03	0.08
Manganese	2	2	2	2	2
Phosphorus	0.045	0.045	0.045	0.045	0.045
Sulfur	0.03	0.03	0.03	0.03	0.03
Silicon	1	1	1	1	1
Nickel	8.0-11.0	8.0-13.0	10.0-14.0	10.0-15.0	9.0-12.0
Chromiun	18.0-20.0	18.0-20.0	16.0-18.0	16.0-18.0	17.0-19.0
Molybdenum	-	-	2.00-3.00	2.00-3.00	-
Columbium	-	-	-	-	-
Titanium	-	-	-	-	-
Nitrogen	0.1	0.1	0.1	0.1	-