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STAINLESS STEEL 310/310S | 317L STAINLESS STEEL | STAINLESS STEEL 321

STAINLESS STEEL 310/310S

ASTM A 240, A 276, A 312 
UNS S31000 / UNS S31008
DIN 1.4845

Stainless steel 310/310S is an austenitic heat resistant alloy with excellent resistance to oxidation under mildly cyclic conditions through 2000ºF. Its high chromium and nickel contents provide comparable corrosion resistance, superior resistance to oxidation and the retention of a larger fraction of room temperature strength than the common austenitic alloys like Type 304. Stainless 310 is often used at cryogenic temperatures, with excellent toughness to -450°F, and low magnetic permeability.

310 UNS S31000 Chemical Composition, %

Cr

Ni

C

Si

Mn

24.0-26.0

19.2-22.0

.25 Max

1.50 Max

2.00 Max

P

S

Mo

Cu

Fe

.045 Max

.03 Max

.75 Max

.50 Max

Balance

310S UNS S31008 Chemical Composition, %

Cr

Ni

C

Si

Mn

24.0-26.0

19.2-22.0

.08 Max

1.50 Max

2.00 Max

P

S

Mo

Cu

Fe

.045 Max

.03 Max

.75 Max

.50 Max

Balance

Characteristics

  • Oxidation resistance to 2000°F
  • Moderate strength at high temperature
  • Resistance to hot corrosion
  • Strength and toughness at cryogenic temperatures

Applications

  • Kilns
  • Heat Exchangers
  • Radiant Tubes
  • Muffles, retorts, annealing covers
  • Tube hangers for petroleum refiing adn steam boilers
  • Coal gasifier internal components
  • Saggers
  • Furnace parts, conveyor belts, rollers, oven linings, fans
  • Food processing equipment
  • Cryogenic structures

Fabrication

Type 310/310S is readily fabricated by standard commercial procedures. In comparison to carbon steel, stainless steels are tougher and tend to work harden rapidly.

Type 310/310S can be welded using all of the common welding processes.

Mechanical Properties
Representative Tensile Properties


Temperature, °F

Ultimate Tensile Strength, ksi

.2% Yield Strength, ksi

Elongation Percent

70

80.0

35.0

52

1000

67.8

20.8

47

1200

54.1

20.7

43

1400

35.1

19.3

46

1600

19.1

12.2

48

Typical Creep-Rupture Properties


Temperature, °F

Minimum Creep 0.0001%/hr, ksi

100,000 Hour Rupture Strength, ksi

12000

14.9

14.4

1400

3.3

4.5

1600

1.1

1.5

1800

.28

.66

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