309 Stainless Steel | McMaster-Carr

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About Stainless Steel

Determine if stainless steel is the right material for you and which types will work best.

High-Temperature 309/310 Stainless Steel

309/310 stainless steel has high levels of chromium and nickel to provide good corrosion resistance at elevated temperatures. Often used in heat exchangers and furnaces, this material maintains its corrosion resistance up to the maximum temperature.

Foil is often used as a heat-treating wrap in temperatures up to 2000° F. It is furnished with a crimping tool.

For technical drawings and 3-D models, click on a part number.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Foil

Yield Strength: Not Rated
Hardness: Rockwell B75 (Medium)
Heat Treatment: Annealed (Softened)
Heat Treatable: No
Specifications Met: ASTM A240

Thick.	Thick. Tolerance	Wd.	Fabrication	Max. Heat Treating Temperature, °F		10 ft. Lg.	25 ft. Lg.	50 ft. Lg.	100 ft. Lg.
0.002"	-0.0002" to 0.0002"	12"	Cold Worked	2000°	0000000	000000	0000000	0000000	0000000
0.002"	-0.0002" to 0.0002"	24"	Cold Worked	2000°	0000000	000000	000000	000000	000000

Bars

Yield Strength: 35,000 psi
Hardness: Rockwell B95 (Medium)
Heat Treatment: Annealed (Softened)
Heat Treatable: No
Specifications Met: SAE AMS5651, ASTM A276

1/4" Thick. (-0.01" to 0.085" Tolerance)
Wd.	Fabrication		1 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/2"	Hot Rolled	0000000	000000	000000	000000
3/4"	Hot Rolled	0000000	00000	00000	00000
1"	Hot Rolled	0000000	00000	00000	00000
1 1/2"	Hot Rolled	0000000	00000	00000	000000
2"	Hot Rolled	0000000	00000	00000	000000
3"	Hot Rolled	0000000	00000	000000	000000
3/8" Thick. (-0.01" to 0.09" Tolerance)
1/2"	Hot Rolled	0000000	00000	00000	00000
1"	Hot Rolled	0000000	00000	00000	000000
1 1/2"	Hot Rolled	0000000	00000	000000	000000
2"	Hot Rolled	0000000	00000	000000	000000
2 1/2"	Hot Rolled	0000000	00000	000000	000000
3"	Hot Rolled	0000000	00000	000000	000000
1/2" Thick. (-0.01" to 0.09" Tolerance)
5/8"	Hot Rolled	0000000	00000	00000	000000
1"	Hot Rolled	0000000	00000	000000	000000
1 1/2"	Hot Rolled	0000000	00000	000000	000000
1" Thick. (-0.01" to 0.115" Tolerance)
1"	Hot Rolled	0000000	000000	000000	000000
3"	Hot Rolled	0000000	000000	000000	00000000

Rods

Yield Strength: 30,000 psi
Hardness: Rockwell B80 (Medium)
Heat Treatment: Annealed (Softened)
Heat Treatable: No
Specifications Met: ASTM A276, SAE AMS5650

Dia.	Dia. Tolerance	Fabrication	Straightness Tolerance		1/2 ft. Lg.	1 ft. Lg.	2 ft. Lg.	3 ft. Lg.	6 ft. Lg.
1/4"	-0.001" to 0.001"	Cold Rolled	Not Rated	0000000	00000	00000	000000	000000	000000
3/8"	-0.002" to 0.002"	Cold Rolled	Not Rated	0000000	0000	00000	00000	00000	00000
1/2"	-0.002" to 0.002"	Cold Rolled	1/16" per 5 ft.	0000000	00000	00000	00000	00000	00000
5/8"	-0.002" to 0.002"	Cold Rolled	1/16" per 5 ft.	0000000	00000	00000	00000	00000	000000
3/4"	-0.002" to 0.002"	Cold Rolled	1/16" per 5 ft.	0000000	00000	00000	00000	00000	000000
7/8"	-0.002" to 0.002"	Cold Rolled	1/16" per 5 ft.	0000000	00000	00000	000000	000000	000000
1"	-0.003" to 0.003"	Cold Rolled	1/16" per 5 ft.	0000000	00000	00000	000000	000000	000000
1 1/4"	-0.003" to 0.003"	Cold Rolled	1/16" per 5 ft.	0000000	00000	00000	000000	00	000000
1 1/2"	-0.003" to 0.003"	Cold Rolled	1/16" per 5 ft.	0000000	00000	000000	000000	000000	000000
2"	-0.003" to 0.003"	Cold Rolled	1/16" per 5 ft.	0000000	000000	000000	000000	000000	000000