AISI 405 Stainless Steel Material Data Sheet ( Ferritic, Annealed, Low Nickel )

AISI 405 Designation

AISI 405, wrought
Condition	Annealed or annealed and cold finished
UNS number	S40500
US name	ASTM S40500, ASTM MT405
EN name	X6CrAl13
EN number	1.4002
GB (Chinese) name	0Cr13Al
JIS (Japanese) name	SUS405, SUS405

AISI 405 Typical uses

Chemical plant parts

Petrochemical cracking

Refractory holding devices.

AISI 405 Composition detail

Al (aluminum)	0.1	–	0.3	%
C (carbon)	0	–	0.08	%
Cr (chromium)	11.5	–	14.5	%
Fe (iron)	82.4	–	88.4	%
Mn (manganese)	0	–	1	%
Ni (nickel)	0	–	0.6	%
P (phosphorus)	0	–	0.04	%
S (sulfur)	0	–	0.03	%
Si (silicon)	0	–	1	%

AISI 405 Physical properties

Density

7.61

–

7.82

g/cm3

AISI 405 Mechanical properties

Young’s modulus	195	–	205	GPa
Specific stiffness	25.2	–	26.7	MN.m/kg
Yield strength (elastic limit)	170	–	275	MPa
Tensile strength	415	–	480	MPa
Specific strength	22	–	35.7	kN.m/kg
Elongation	17	–	25	% strain
Compressive strength	170	–	275	MPa
Flexural modulus	195	–	205	GPa
Flexural strength (modulus of rupture)	170	–	275	MPa
Shear modulus	75	–	81	GPa
Bulk modulus	144	–	159	GPa
Poisson’s ratio	0.275	–	0.285
Shape factor	64
Hardness – Vickers	150	–	200	HV
Hardness – Rockwell B	71	–	79	HRB
Hardness – Rockwell C	0	–	11	HRC
Hardness – Brinell	150	–	192	HB
Elastic stored energy (springs)	75.7	–	181	kJ/m3
Fatigue strength at 10^7 cycles	231	–	257	MPa
Fatigue strength model (stress range) Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles	209	–	284	MPa

AISI 405 Impact & fracture properties

Fracture toughness	82	–	160	MPa.m0.5
Toughness (G)	36.6	–	118	kJ/m2

AISI 405 Thermal properties

Melting point	1480	–	1530	°C
Maximum service temperature	700	–	800	°C
Minimum service temperature	-73	–	-43	°C
Thermal conductivity	23	–	27	W/m.°C
Specific heat capacity	450	–	500	J/kg.°C
Thermal expansion coefficient	10	–	12	µstrain/°C
Thermal shock resistance	76.6	–	127	°C
Thermal distortion resistance	2.02	–	2.56	MW/m
Latent heat of fusion	260	–	285	kJ/kg

AISI 405 Electrical properties

Electrical resistivity	55	–	65	µohm.cm
Electrical conductivity	2.65	–	3.13	%IACS
Galvanic potential	-0.27	–	-0.19	V

AISI 405 Magnetic properties

Magnetic type

Magnetic

AISI 405 Optical, aesthetic and acoustic properties

Transparency	Opaque
Acoustic velocity	5020	–	5160	m/s
Mechanical loss coefficient (tan delta)	0.00115	–	0.00159

AISI 405 Processing properties

Metal casting	Unsuitable
Metal cold forming	Limited use
Metal hot forming	Acceptable
Metal press forming	Excellent
Metal deep drawing	Unsuitable
Machining speed	33.5 m/min
Weldability Notes: Preheating and post weld heat treatment are not required	Poor
Weldability – MIG	Fair
Weldability – plasma	Fair
Weldability – SAW	Not recommended
Weldability – TIG	Fair
Brazeability	Fair
Carbon equivalency	0.383 – 0.64

AISI 405 Durability

Water (fresh)	Excellent
Water (salt)	Excellent
Weak acids	Excellent
Strong acids	Acceptable
Weak alkalis	Excellent
Strong alkalis	Limited use
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 405 Corrosion resistance

Pitting resistance equivalent number (PREN)	11.5 – 14.5
Pitting and crevice corrosion	Low (<20)
Stress corrosion cracking Note: Rated in chloride; Other susceptible environments: Hydrogen sulfide	Slightly susceptible
Intergranular (weld line) corrosion	Moderate
Inorganic acids	Restricted
Organic acids	Restricted
Alkalis	Moderate
Humidity / water	Good
Sea water	Moderate
Sour oil and gas	Restricted

AISI 405 Standards with similar compositions

Australia: 405 to AS 1449

Bulgaria: 0Ch13Ju to BDS 6738

Canada: 405 to CSA G110.3, 405 to CSA G110.5, 405 to CSA G110.9

China: 0Cr13Al to GB 1220, 0Cr13Al to GB 1221, 0Cr13Al to GB 4237, 0Cr13Al to GB 4238, 0Cr13Al to GB/T 12771, 0Cr13Al to GB/T 17102, 0Cr13Al to GB/T 3280, 0Cr13Al to GB/T 4239, 0Cr13Al to GB/T 6725

Germany: 1.4002 to DIN 17440, 1.4002 to DIN 17441, 1.4002 to DIN EN 10088, X6CrAl13 to DIN EN 10088

India: X04Cr13 to IS 6527, X04Cr13A to IS 6528

International: 2 to ISO 683-13

Italy: X6CrAl13 to UNI 6901, X6CrAl13 to UNI 6904

Japan: SUS405 to JIS G4303, SUS405 to JIS G4304, SUS405 to JIS G4305, SUS405 to JIS G4306, SUS405 to JIS G4307, SUS405 to JIS G4309, SUS405TB to JIS G3463, SUS405TP to JIS G3459

Mexico: 405 to NMX-B-83, MT405 to NMX-B-171

Poland: 0H13J to PN-H-86020

Romania: 7AlCr130 to STAS 3583

South Korea: STS 405 to KS D 3706, STS 405-W2 to KS D 3703, STS405 to KS D 3698, STS405 to KS D 3705

Spain: E-405 to UNE 36016/1, F.3111 to UNE 36016, F.3111 to UNE 36016/1, X6CrAl13 to UNE 36016

UK: 405S17 to BS 1449/2, 405S17 to BS 1503, X6CrAl13 to BS EN 10250-4

USA: 405 to ASTM A176-99, 405 to ASTM A314-97, 405 to ASTM A473, 405 to DoD-F-24669/7, 405 to FED QQ-S-763F, 405 to MIL-S-861, 405 to MIL-S-862B, MT405 to ASTM A511, S40500 to ASTM A240/A240M, S40500 to ASTM A276, S40500 to ASTM A479/A479M, S40500 to ASTM A580/A580M-98, S40500 to ASTM A959, S40500 to SAE J405, TP405 to ASTM A268/A268M, UNS S40500

Tradenames: ALLEGHENY ATAINLESS TYPE 405, ALLEGHENY LUDLUM TYPE 405, ARMCO 400, SPARTAN REDHEUGH 405S17