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
- Elbows, tees, stub-ends, returns, caps, crosses, reducers, pipe nipples, etc.
- 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.
**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