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AISI 310 Stainless Steel Rod

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Properties common to all products in this list

Grade: AISI 310 Composition: Fe/Cr 25/Ni20 Form: Rod Material: Stainless Steel UNS Number: S31000 Commodity: Alloys Temper: Annealed
AISI 310 Stainless Steel Rod (UNS S31000) is a solid austenitic stainless steel bar offering exceptional oxidation resistance, elevated-temperature strength, and reliable creep performance in round section format. With 24–26% chromium and 19–22% nickel, it maintains structural integrity under sustained and cyclic thermal loading to approximately 1100 °C, while its higher carbon content relative to 310S provides enhanced high-temperature load-bearing capacity. Room-temperature properties of 617 MPa tensile strength, 292 MPa yield strength, and 49% elongation support good machinability with sharp, rigidly supported tooling. Fully weldable by GTAW/TIG, GMAW/MIG, SMAW, and SAW processes with appropriate sensitisation awareness, and solution annealable at 1120–1175 °C to restore properties. Typical applications include furnace rollers, radiant tube hangers, heat-treatment fixture components, burner assemblies, and structural elements in chemical-processing installations exposed to hot acids, ammonia, and sulphur-bearing gases. In research, it provides a reproducible platform for creep, stress-rupture, and high-temperature oxidation testing.
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Material Properties

Mechanical Properties
Element Value
Hardness - Brinell 170
Elongation at break( % ) 50
Modulus of elasticity( GPa ) 190-210
Izod impact strength( J m⁻¹ ) 20-136
Tensile strength( MPa ) 530-1200
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 70-78
Thermal Properties
Element Value
Melting point( C ) 1400-1455
Thermal conductivity( W m⁻¹ K⁻¹ ) 16.3@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 16-18@20-100°C
Physical Properties
Element Value
Density( gcm⁻³ ) 7.9
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Available Configurations

Properties common to all products in this list

Grade: AISI 310 Composition: Fe/Cr 25/Ni20 Form: Rod Material: Stainless Steel UNS Number: S31000 Commodity: Alloys Temper: Annealed

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Tolerances

Rod
Diameter =<10mm ±10%
Diameter >10mm ±5%
Length <100mm ±1mm
Length >=100mm +5 / -1%