AISI 310 Stainless Steel Data Sheet

Stainless steel, austenitic, AISI 310, annealed

AISI 310 Stainless Steel General information

Designation
AISI 310, wrought
Condition	Solution annealed
UNS number	S31000
US name	ASTM TP310, ASTM S31041, ASTM S31040, ASTM S31009, ASTM S31008, ASTM S31002, ASTM S31000, ASTM F310, ASTM CR310S, AMS 5651, AMS 5572, AMS 5521
EN name	~X8CrNi25-21, ~X15CrNiSi25-21, ~X15CrNiSi25-20
EN number	~1.4845, ~1.4841
ISO name	X6CX6CrNi25-21, ~X8CrNi25-21, ~formerly Type 16
GB (Chinese) name	2Cr25Ni20, 0Cr25Ni20(-R), 0Cr25Ni20(-Q), 0Cr25Ni20, ~1Cr25Ni20Si2
JIS (Japanese) name	SUSF310, SUS310TP, SUS310TB, SUS310STPY, SUS310STP, SUS310STB, SUS310SFB, SUS310S, SUH310

AISI 310 Stainless Steel Typical uses

Typical uses

Carburizing boxes, electrical parts, furnace parts, heat exchangers, heat-treatment baskets, oil-burner parts, welding filler wire and electrodes.

AISI 310 Stainless Steel Composition

C (carbon)	0	–	0.25	%
Cr (chromium)	24	–	26	%
Fe (iron)	48.2	–	57	%
Mn (manganese)	0	–	2	%
Ni (nickel)	19	–	22	%
P (phosphorus)	0	–	0.045	%
S (sulfur)	0	–	0.03	%
Si (silicon)	0	–	1.5	%

AISI 310 Stainless Steel Physical properties

Density

7.84

–

8.04

g/cm³

AISI 310 Stainless Steel Mechanical properties

Young’s modulus	196	–	204	GPa
Specific stiffness	24.6	–	25.8	MN.m/kg
Yield strength (elastic limit)	205	–	310	MPa
Tensile strength	500	–	620	MPa
Specific strength	25.8	–	39.1	kN.m/kg
Elongation	30	–	47	% strain
Compressive strength	205	–	310	MPa
Flexural modulus	196	–	204	GPa
Flexural strength (modulus of rupture)	205	–	310	MPa
Shear modulus	76	–	81	GPa
Bulk modulus	139	–	152	GPa
Poisson’s ratio	0.265	–	0.275
Shape factor	62
Hardness – Vickers	160	–	225	HV
Hardness – Rockwell B	80	–	90	HRB
Hardness – Rockwell C	0	–	17	HRC
Hardness – Brinell	185	–	207	HB
Elastic stored energy (springs)	110	–	236	kJ/m³
Fatigue strength at 10^7 cycles	206	–	228	MPa
Fatigue strength model (stress range) Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles	174	–	271	MPa

AISI 310 Stainless Steel Impact & fracture properties

Fracture toughness	64	–	79	MPa.m^0.5
Toughness (G)	20.7	–	30.9	kJ/m²

AISI 310 Stainless Steel Thermal properties

Melting point	1400	–	1450	°C
Maximum service temperature	1.05e3	–	1.15e3	°C
Minimum service temperature	-200			°C
Thermal conductivity	11	–	16	W/m.°C
Specific heat capacity	490	–	530	J/kg.°C
Thermal expansion coefficient	15	–	17	µstrain/°C
Thermal shock resistance	63.7	–	97.9	°C
Thermal distortion resistance	0.683	–	1.01	MW/m
Latent heat of fusion	260	–	285	kJ/kg

AISI 310 Stainless Steel Electrical properties

Electrical resistivity	72	–	90	µohm.cm
Electrical conductivity	1.92	–	2.39	%IACS
Galvanic potential	-0.23	–	-0.15	V

AISI 310 Stainless Steel Magnetic properties

Magnetic type

Non-magnetic

AISI 310 Stainless Steel Optical, aesthetic and acoustic properties

Transparency	Opaque
Acoustic velocity	4960	–	5080	m/s
Mechanical loss coefficient (tan delta)	9.5e-4	–	0.00132

AISI 310 Stainless Steel Processing properties

Metal casting	Unsuitable
Metal cold forming	Acceptable
Metal hot forming	Acceptable
Metal press forming	Excellent
Metal deep drawing	Excellent
Machining speed	21 m/min
Weldability Notes: Preheating and post weld heat treatments are not required	Poor
Weldability – MIG	Fair
Weldability – plasma	Fair
Weldability – SAW	Not recommended
Weldability – TIG	Fair
Brazeability	Good
Carbon equivalency	6.07 – 7.25

AISI 310 Stainless Steel Durability

Water (fresh)	Excellent
Water (salt)	Excellent
Weak acids	Excellent
Strong acids	Acceptable
Weak alkalis	Excellent
Strong alkalis	Excellent
Organic solvents	Excellent
Oxidation at 500C	Excellent
UV radiation (sunlight)	Excellent
Galling resistance (adhesive wear) Notes: Aluminum bronze is the most suitable mating material to minimize galling.	Limited use
Flammability	Non-flammable

AISI 310 Stainless Steel Corrosion resistance

Pitting resistance equivalent number (PREN)	24 – 26
Pitting and crevice corrosion	Medium (20-30)
Stress corrosion cracking Note: Rated in chloride; Other susceptible environments: Hydrogen sulfide	Slightly susceptible
Intergranular (weld line) corrosion	Excellent
Inorganic acids	Moderate
Organic acids	Moderate
Alkalis	Moderate
Humidity / water	Excellent
Sea water	Moderate
Sour oil and gas	Moderate

AISI 310 Stainless Steel Standards with similar compositions-Equivalent Grades

Australia: 310 to AS 1449

Canada: 310 to CSA G110.3, 310 to CSA G110.6

China: 2Cr25Ni20 to GB 1221, 2Cr25Ni20 to GB 13296, 2Cr25Ni20 to GB 4238

Czech Republic: 17255 to CSN 417255

India: 10Cr25Ni18 to IS 11714/4, 10Cr25Ni18 to IS 11714/5, 20Cr25Ni20 to IS 9516, X20Cr25Ni20 to IS 1570/5, X20Cr25Ni20 to IS 6911

International: F68 to ISO 2604-1

Italy: X22CrNi2520 to UNI 6901, X22CrNi2520 to UNI 6904

Japan: SUH310 to JIS G4311, SUH310 to JIS G4312, SUS 310 TF to JIS G3467, SUS310TB to JIS G3463, SUS310TP to JIS G3459, SUSF310 to JIS G3214

Mexico: 310 to NMX-B-83, TP310 to NMX-B-218

Pan America: TP310 to COPANT 513

South Korea: STR 310 to KS D 3731, STR 310 to KS D 3732, STS F 310 to KS D 4115

UK: 310S24 to BS 1449/2, 310S31 to BS 6258, 310S31 to BS 970/1

USA: 310 to ASTM A167-99, 310 to ASTM A312/A312M, 310 to ASTM A403/A403M, 310 to ASTM A409/A409M, 310 to ASTM A473, 310 to FED QQ-S-763F, 310 to FED QQ-S-766D, 310 to MIL-S-862B, 310 to SAE J467, CK-20 to ACI (SFSA), CPK20 to ASTM A451/A451M, F310 to ASTM A182/A182M, F310 to ASTM A336/A336M, F310 to ASTM A965/A965M, S31000 to ASTM A276, S31000 to ASTM A314-97, S31000 to ASTM A580/A580M-98, S31000 to ASTM A959, S31000 to ASTM F2281, TP310 to ASTM A632, UNS S31000

Tradenames: APFI, BETHADUR 310, EAGLE & GLOBE 310, JESSOP NO. 5B, MAX. 4, PYROFIX-1, RUSTLESS 25-20, SPARTAN REDHEUGH 310S24, U.S.S. 25-20, UNILOY 310, WITTEN S 48 L

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