What is the density of 310S?

7900 kg/m³ — the figure the weight calculators on this site use for 310S. The value is Outokumpu / stainless technical resources’s.

What is the chemical composition of 310S?

C ≤ 0.08, Si ≤ 1.5, Mn ≤ 2, P ≤ 0.045, S ≤ 0.03, Cr 24–26, Ni 19–22, N ≤ 0.1, in mass %, to ASTM A240. An element the standard sets no requirement for is left blank here rather than written as zero.

What are the mechanical properties of 310S?

Tensile ≥ 515 MPa, Yield ≥ 205 MPa, Elongation min ≥ 40 % — ASTM A240, Plate/Sheet/Strip, Annealed. Those are the standard’s requirements; the mill test certificate governs the metal delivered.

310S — properties and composition

Designations

UNS: S31008
EN number: 1.4845
EN name: X8CrNi25-21
AISI: 310S

Density

Density: 7900 kg/m³
Per: Outokumpu / stainless technical resources
Corrosion resistance: Heat resistant
Product forms: Sheet, plate, pipe

Chemical composition

Chemical composition — mass %
Standard	Product form	Basis	C	Si	Mn	P	S	Cr	Ni	N
ASTM A240	Plate/Sheet/Strip	Specification	≤ 0.08	≤ 1.5	≤ 2	≤ 0.045	≤ 0.03	24–26	19–22	≤ 0.1

mass %. A blank cell means the standard sets no requirement for that element, not zero. Single values are limits: "≤" a maximum, "≥" a minimum.

Reference values from the cited standards. They describe what the standard requires, not a specific heat of material; the mill test certificate governs what is delivered.

Mechanical properties

Mechanical properties
Standard	Product form	Condition / temper	Test temperature	Yield	Tensile	Elongation min	Hardness max	Notes
ASTM A240	Plate/Sheet/Strip	Annealed	20 °C	0.2% offset ≥ 205 MPa	≥ 515 MPa	40 % (Product dependent)	95 HRB	Minimum values.

Each row is one standard, one product form and one condition — the values do not transfer across rows. A blank cell means the standard sets no requirement.

Reference values from the cited standards. They describe what the standard requires, not a specific heat of material; the mill test certificate governs what is delivered.

Typical applications

Furnaces, heat treatment, high-temperature service

Common questions

01What is the density of 310S?: 7900 kg/m³ — the figure the weight calculators on this site use for 310S. The value is Outokumpu / stainless technical resources’s.
02What is the chemical composition of 310S?: C ≤ 0.08, Si ≤ 1.5, Mn ≤ 2, P ≤ 0.045, S ≤ 0.03, Cr 24–26, Ni 19–22, N ≤ 0.1, in mass %, to ASTM A240. An element the standard sets no requirement for is left blank here rather than written as zero.
03What are the mechanical properties of 310S?: Tensile ≥ 515 MPa, Yield ≥ 205 MPa, Elongation min ≥ 40 % — ASTM A240, Plate/Sheet/Strip, Annealed. Those are the standard’s requirements; the mill test certificate governs the metal delivered.
04What is 310S used for?: Furnaces, heat treatment, high-temperature service