ANALYSIS AND APPLICATIONS OF STAINLESS STEEL

Elements Shown are Percent of Total Composition (ASTM)
Type
C Max.
Mn Max.
Cr
Ni
Other
Elements
Applications
304
.08
2.00
18.00/
20.00
 8.00/
11.00
—
Aircraft, dairy, food, paper, petrochemical, and textile industries.
304L
.035
2.00
18.00/
20.00
 8.00/
13.00
—
Low carbon for fabrication by welding which cannot be subsequently annealed.
309
.15
2.00
22.00/
24.00
12.00/
15.00
—
Heat-resistant furnace parts, heater tubes, pyrometer tubes, retorts, heat exchangers, exhaust stacks, oil burner parts.
309S
.08
2.00
22.00/
24.00
12.00/
15.00
—
Heat-resistant furnace parts, heater tubes, pyrometer tubes, retorts, heat exchangers, exhaust stacks, oil burner parts. Lower carbon for welding fabrication of parts.
310
.15
2.00
24.00/
26.00
19.00/
22.00
—
Chemical and petroleum industries, heat exchangers, and furnace parts.
310S
.08
2.00
24.00/
26.00
19.00/
22.00
—
Chemical and petroleum industries, heat exchangers, and furnace parts. Lower carbon for welding fabrication of parts.
316
.08
2.00
16.00/
18.00
10.00/
14.00
Mo
2.00/3.00
Chemical, food, paper, pharmaceutical industries, and sea water atmosphere exposure. Better corrosion resistance and creep strength than Types 304 and 304L.

ANALYSIS AND APPLICATIONS OF STAINLESS STEEL

Elements Shown are percent of Total Composition (ASTM)
Type
C
Max.
Mn
Max.
Cr
Ni
Other
Elements
Applications
316L
.035
2.00
16.00/
18.00
10.00/
15.00
Mo
2.00/3.00
Lower carbon than Type 316 for fabrication by welding which cannot be subsequently annealed.
317
.08
2.00
18.00/
20.00
11.00/
14.00
Mo
3.00/ 4.00
Better corrosion resistance and creep strength than Types 316 and 316L.
317L
.035
2.00
18.00/
20.00
11.00/
15.00
Mo
3.00/4.00
Lower carbon than Type 317 for fabrication by welding which cannot be subsequently annealed.
321
.08
2.00
17.00/
20.00
 9.00/
13.00
Ti 5 x C Min.
.70 Max.
Aircraft exhaust manifolds, heater tubing sheaths, and heat exchangers. Ti. stabilized for intermittent exposure at 800/1600 degrees F. or subsequent welding.
347
.08
2.00
17.00/
20.00
 9.00/
13.00
Columbium-
Tantalum
10 x C Min.
1.00 Max
Aircraft and chemical industries. Cb-Ta stabilized for intermittent exposure at 800/1600 degrees F. or subsequent welding.
348
.08
2.00
17.00/
20.00
 9.00/
13.00
Columbium-
Tantalum
10 x C Min.
1.00Max.
Tantalum
.10 Max.
Aircraft and missile industries. Cb stabilized for intermittent exposure at 800/1600 degrees F. or subsequent welding
409
.08
1.00
10.50/
11.75
.50
Max.
Ti 6 x Carbon
Min.
.75 Max.
Moderate oxidation and corrosion resistance. Mufflers, exhaust parts, heater and combustion chamber parts.
430ti
.10
1.00
16.00/
19.50
.75
Max.
Ti 5 x Carbon
Min.
.75 Max.
Good corrosion resistance in mild acids and alkaline solutions. Also used in heat resistant applications. Good resistance to stress corrosion cracking.
P .040 max. S .030 percent max. except Type 409 — .045 percent SI .75 max.