310 Stainless Steel

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

What forms of 310/310S Stainless Steel are available at Mega Mex?

  • Sheet
  • Plate
  • Bar
  • Pipe & Tube
  • Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
  • Weld Wire (AWS E310-16 or ER310)

310/310S Stainless Steel Overview

Stainless steel 310/310S is an austenitic heat resistant alloy with excellent resistance to oxidation under mildly cyclic conditions through 2000°F. 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 Stainless Steel

**As you can see below, Grade 310S is a low carbon version of grade 310. 310S is less prone to embrittlement and sensitization in service.

310 UNS S31000 Chemical Composition, %

Cr Ni C Si Mn P S Mo Cu Fe
24.0-26.0
19.2-22.0
.25 Max
1.50 Max
2.00 Max
.045 Max
.03 Max
.75 Max
.50 Max
Balance

310S UNS S31008 Chemical Composition, %

Cr Ni C Si Mn P S Mo Cu Fe
24.0-26.0
19.2-22.0
.08 Max
1.50 Max
2.00 Max
.045 Max
.03 Max
.75 Max
.50 Max
Balance

What are the characteristics of 310/310S Stainless?

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

Typical Applications for 310/310S Stainless

  • 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 with Stainless 310/310S

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
1200
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

Reference: 2. www.alleghenyludlum.com