321 Stainless Steel Coil

Product Description

Description:

Types 310 Stainless Steel and 310S are typically used for elevated temperature applications. Their high nickel and chromium contents impart excellent elevated temperature strength and resistance to oxidation compared to Type 304 SS. Type 310S Stainless Steel is identical to Type 310 except for a lower carbon content that minimizes carbide precipitation and improves weldability. They are essentially nonmagnetic as annealed and become lightly magnetic when cold worked.

Specifications:

ASTM A 167 and ASTM A240

Typical Applications:

furnace parts, heating elements, heat exchangers, kiln liners, boiler baffles, auto exhaust parts; refinery, chemical and food processing equipment

Chemical Composition: ASTM A167, A240

Element	Type 310	Type 310S
Carbon	0.25 max.	0.08 max.
Manganese	2.00 max.	2.00 max.
Sulfur	0.030 max.	0.030 max.
Phosphorus	0.045 max.	0.035 max.
Silicon	1.50 max.	1.50 max.
Chromium	24.0 – 26.0	24.0 – 26.0
Nickel	19.0 – 22.0	19.0 – 22.0

Mechanical Properties: ASTM A167, A240

Type	Yield Strength 0.2% offset (KSI)	Tensile Strength (KSI)	% Elongation (2" Gauge length)	Hardness Rockwell
310	30 min.	75 min.	40 min.	HRB 95 max.
310S	30 min.	75 min.	40 min.	HRB 95 max.

Physical Properties:

Density (lb./ in^2) @ RT		0.29
Modulus of Elasticity in Tension (psi x 10^6)		29.0
Specific Heat (BTU/°F/lb.)	32 to 212 °F	0.12
Thermal Conductivity (BTU/hr/ft^2/ft)	212°F	8.0
	932°F	10.8
Mean Coefficient of Thermal Expansion (in. x 10^-6 per °F)	68 to 212°F	8.8
	68 to 932°F	9.5
	68 to 1832°F	10.5
Electrical Resistivity (micro ohms - cm)	at 70°F	30.7
Oxidation Resistance - Continuous Service(°F)		2000

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