Category 

Steel

Class 

Stainless steel

Type 

Austenitic standard

Common Names 

Chromium-Nickel steel

Designations 

France: AFNOR Z 6 CN 18.09 

Germany: DIN 1.4301 

Italy: UNI X 5 CrNi 18 10 

Japan: JIS SUS 304 

Sweden: SS 2332 

United Kingdom: B.S. 302 S 17, B.S. 304 S 15, B.S. 304 S 16, B.S. 304 S 18, B.S. 304 S 25, B.S. 304 S 40, B.S. En.58 E 

United States: AMS 5501, AMS 5513, AMS 5560, AMS 5565, AMS 5566, AMS 5567, AMS 5639, AMS 5697, ASME SA182, ASME SA194 (Type 8), ASME SA213, ASME SA240, ASME SA249, ASME SA312, ASME SA320 (B8), ASME SA358, ASME SA376, ASME SA403, ASME SA409, ASME SA430, ASME SA479, ASME SA688, ASTM A167, ASTM A182, ASTM A193, ASTM A194, ASTM A213, ASTM A276, ASTM A312, ASTM A240, ASTM A249, ASTM A269, ASTM A580, ASTM A632, ASTM A651, ASTM A492, ASTM A493, ASTM A270, ASTM A271, ASTM A511, ASTM A554, ASTM A666, ASTM A688ASTM A313, ASTM A314, ASTM A320, ASTM A368, ASTM A376, ASTM A409, ASTM A430, ASTM A473, ASTM A478, ASTM A479, SAE 30304, SAE J405 (30304), UNS S30400, FED QQ-S-763, FED QQ-S-766, FED QQ-W-423, FED STD-66, MIL SPEC MIL-S-23195, MIL SPEC MIL-S-23196, MIL SPEC MIL-S-862, MIL SPEC MIL-S-862, MIL SPEC MIL-T-6845, MIL SPEC MIL-T-8506, MIL SPEC MIL-T-8504, MIL SPEC M.IL-S-5059, MIL SPEC MIL-F-20138

B03 – Metal forming treatment. Forgings

В22 – Graded and shaped rolling

B23 – Sheets and Strips

В32 – Graded and shaped rolling

B33 – Sheets and Strips

B34 – Ribbons

В62 – Steel pipes and connecting parts to them

B73 – Steel Alloy Wire

B76 – Metal nets

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

304

min.

–

–

–

–

–

18.0

–

8.0

–

max.

0.08

2.0

0.75

0.045

0.030

20.0

10.5

0.10

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B) max

Brinell (HB) max

304

515

205

40

92

201

Grade

Density (kg/m3)

Elastic Modulus (GPa)

Mean Coefficient of Thermal Expansion (m/m/0C)

Thermal Conductivity (W/m.K)

Specific Heat 0-1000C (J/kg.K)

Electrical Resistivity (n.m)

0-1000C

0-3150C

0-5380C

at 1000C

at 5000C

304

8000

193

17.2

17.8

18.4

16.2

21.5

500

720

Properties

 Conditions 

T (°C)

Treatment

Electric Resistivity (10-9W-m)

720 

25 

Grade

UNS No

Old British

Euronorm

Swedish SS

Japanese JIS

GOST

BS

En

No

Name

SS 304

S30400

304S31

58E

1.4301

X5CrNi18-10

2332

SUS 304

08Х18Н10