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AISI 310S - X8CrNi25-21 - DIN 1.4845

310 grade, is produced for heat resistance purposes. In normal conditions this grade is resistant up to 1100 °C degrees.

In the oxidising conditions, when the heat is constant maximum heat resistance can reach 1100 °C degrees, but if the heating is scattered thisgrade is recommenended up to 1030 °C degrees.

310S grade, is resistant to heat in both dry and moist environments. Due to lower Carbon (C) content, 310S grade has higher resistance to heat than 310. Also with its high Chromium (Cr) content, they also have good corrosion resistance in moist enviornments. Under normal conditions their corrosion resistance is great. 

Their weldability is good with all the welding methods. Machinability is possible with the right tools, but it is more difficult than 304 grade. Cold forming is very good. All the mechanial properties are superior to many austenitic grades.

Alternative grades: AISI 309S, 314

Available forms: Round Bars, Flat Bars, Angles, Coils, Sheets, Strips, Welded Tubes, Profiles, Seamless Tubes.

Available forms in our stocks: Round Bars, Flat Bars, Coils, Sheets, Strips

CHEMICAL COMPOSITION:

Grade 
(AISI)

C

Mn

Si

P

S

Cr

Mo

Ni

N

310S

min.

max.

-

0.08

-

2.0

-

1.50

-

0.045

-

0.03

24.0

26.0

-

19.0

22.0

-

 

MECHANICAL PROPERTIES:

Grade 
(AISI)

Tensile Strength
(MPa) min

Yield Strength 
0.2% Proof
(MPa) min

Elongation
(% in 50mm)
min

Hardness

Rockwell 
B (HRB) max

Brinell
(HB) max

310S

515

205

40

95

217

 

PHYSICAL PROPERTIES:

Grade
(AISI)

Density
(kg/m3)

Modulus of 
Elasticity

(GPa)

Coeff. of 
Thermal Exp.
(mm/m/°C)

Specific Thermal 
Capacity
(W/m.K)

Specific Heat
0-100°C
(J/kg.K)

Electrical
Resistivity
(nW.m)

0-100
°C

0-315
°C

0-538
°C

At
100°C

At
500°C

310S

7750

200

15.9

16.2

17.0

14.2

18.7

500

720

 

 

 

 

 

 

Given data is based on theoritical vaules and intended as informative purposes only. Given data may be revised at any time without prior notice. Stainless steels may vary in performance under different circumstances. Teknik Metal Endustri Malz. Tic. Ve San. A.S. disclaims any and every liability, and will not be held responsible for any consequences derived from the end use or the application of the materials.