eFunda: Properties of Stainless Steel AISI Type 304L
engineering fundamentals Stainless Steel AISI Type 304L
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AISI Type 304L
Category Steel
Class Stainless steel
Type Austenitic standard
Common Names Chromium-Nickel steel
Designations  Germany: DIN 1.4306
Italy: UNI KG , UNI KW , UNI X 2 CrNi 18 11 , UNI X 3 CrNi 18 11
Japan: JIS SCS 19 , JIS SUS 304 L
Sweden: SS 2352
United Kingdom: B.S. 304 S 12 , B.S. 304 S 14 , B.S. 304 S 22 , B.S. S. 536
United States: AMS 5511 , AMS 5647 , ASME 8A182 , ASME SA213 , ASME SA240 , ASME SA249 , ASME SA312 , ASME SA403 , ASME SA479 , ASME SA688 , ASTM A167 , ASTM A182 , ASTM A213 , ASTM A240 , ASTM A249 , ASTM A276 , ASTM A312 , ASTM A314 , ASTM A403 , ASTM A473 , ASTM A478 , ASTM A479 , ASTM A511 , ASTM A554 , ASTM A580 , ASTM A632 , ASTM A688 , FED QQ-S-763 , FED QQ-S-766 , MIL SPEC MIL-S-23195 , MIL SPEC MIL-S-23196 , SAE 30304L , SAE J405 (30304L) , UNS S30403

Composition

ElementWeight %
C  0.03 
Mn  2.00 
Si  1.00 
Cr  18.0-20.0 
Ni  8.0-12.0 
P  0.045 
S  0.03 

Mechanical Properties

Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 480  25  hot finished and annealed (plate, sheet, strip) more
Yield Strength (Mpa) 170 
Elongation (%) 40 
Reduction in Area (%) 50 
Hardness (HRB) 88 (max)  25  annealed (plate, sheet, strip) 
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