CHEMICAL COMPOSITION (UNI 10088-2: 1997)

Alloy

X5CrNi18-10

X2CrNiMo17-12-2

AISI Classification

304

316L

DIN Classification

1.4301

1.4404

% by mass

C

0,07

0,030

Si

1,00

1,00

Mn

2,00

2,00

P max

0,045

0,045

S

0,030

0,030

N

0,11

0,11

Cr

17,5 -19,5

16,5 - 18,5

Mo

-

2 2,50

Ni

8,0 10,5

10 - 13

PHYSICAL CHARACTERISTICS (UNI 10088-2: 1997)

Alloy

X5CrNi18-10

X2CrNiMo17-12-2

AISI Classification

304

316L

DIN Classification

1.4301

1.4404

Specific weight
(kg/dm3)

7,91

8,00

Melting range
(C)

1400 - 1420

1400 - 1420

Thermal Conductivity at 20 C λ (W / m K)

17

17

Coefficient of thermal expansion
C (mm / m C)

0,0103

0,0103

Modulus of elasticity
E (N / mm2)

19.600

19.600

Electrical conductivity
 Ω (Ω / mm / m)

0,714

0,714

MECHANICAL PERFORMANCE (UNI 10088-2: 1997) (for cold rolled strip)

Alloy

X5CrNi18-10

X2CrNiMo17-12-2

AISI Classification

304

316L

DIN Classification

1.4301

1.4404

Yeld point
Rm (N / mm2)

540 750

530 - 680

Conventional limit of elasticity

0,2% Rp 0,2

230

240

1 % Rp 1,0

260

270

Elongation after fracture
A 80mm / % min

45

40

Hardness Brinnel HB
(kg / mm2)

165

170

REFERENCE STANDARDS

EN 10088-1 Stainless steels. List of stainless steels
EN 10088-2 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-3 Stainless steels. Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EU 114 Determination of resistance to intergranular corrosion of austenitic stainless steels