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303 Plus X

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America SAE 303PlusX Chemical compositions of SAE wrought stainless steels and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 303PlusX / 303 Plus X
Category Grade Standard Region/Area Standard Content
Metals 303 Plus X SAE J 405 America Chemical compositions of SAE wrought stainless steels

Chemical composition(mass fraction)(wt.%) of the 303 Plus X

Element Min Max Similar
Si - 1.0000 -
S 0.1500 - -
P - 0.2000 -
Ni 7.0000 10.0000 -
Mo - 0.6000 -
Mn 2.5000 4.5000 -
Cr 17.0000 19.0000 -
C - 0.1500 -

Mechanical Properties of steel grade 303 Plus X

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
999 (≥) 584 (≥) 21 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 223

Physical Properties of steel grade 303 Plus X

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
24 - -     0.11 -  
528 242 - 22.3 422   -  
622 - 31 32.2   332 232

Heat Treatment of steel grade 303 Plus X

Heat treated : 1581°C - 1336°C

Technological Curves of steel grade 303 Plus X

Cross Reference Table (Equivalent Grade) of 303 Plus X

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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