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316 Stainless Steel Specification

316 Stainless Steel Specification

In the article, Mirach Metallurgy Co.,Limited introduces 316 stainless steel and its detail information.In metallurgy, stainless steel, also known as inox steel or inox from French “inoxydable”, is defined as a steel alloy with a minimum of 10.5% to 11% chromium content by mass. The detail info of spec you can find below:

316 stainless steel

Composition

Table 1. Composition ranges for 316 grade of stainless steels.

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

316

Min

0

16.0

2.00

10.0

Max

0.08

2.0

0.75

0.045

0.03

18.0

3.00

14.0

0.10

316L

Min

16.0

2.00

10.0

Max

0.03

2.0

0.75

0.045

0.03

18.0

3.00

14.0

0.10

316H

Min

0.04

0.04

0

16.0

2.00

10.0

max

0.10

0.10

0.75

0.045

0.03

18.0

3.00

14.0

Mechanical Properties

Table 2. Mechanical properties of 316 grade stainless steels.

Grade

Tensile Str
(MPa) min

Yield Str
0.2% Proof
(MPa) min

Elong
(% in 50mm) min

Hardness

Rockwell B (HR B) max

Brinell (HB) max

316

515

205

40

95

217

316L

485

170

40

95

217

316H

515

205

40

95

217

Note: 316H also has a requirement for a grain size of ASTM no. 7 or coarser.

Physical Properties

Table 3. Typical physical properties for 316 grade stainless steels.

Grade

Density
(kg/m3)

Elastic Modulus
(GPa)

Mean Co-eff of Thermal Expansion (µm/m/°C)

Thermal Conductivity
(W/m.K)

Specific Heat 0-100°C
(J/kg.K)

Elec Resistivity
(nΩ.m)

0-100°C

0-315°C

0-538°C

At 100°C

At 500°C

316/L/H

8000

193

15.9

16.2

17.5

16.3

21.5

500

740

Grade Specification Comparison

Table 4. Grade specifications for 316 grade stainless steels.

Grade

UNS
No

Old British

Euronorm

Swedish
SS

Japanese
JIS

BS

En

No

Name

316

S31600

316S31

58H, 58J

1.4401

X5CrNiMo17-12-2

2347

SUS 316

316L

S31603

316S11

1.4404

X2CrNiMo17-12-2

2348

SUS 316L

316H

S31609

316S51