S2

S2 Tool Die Steels

S2 - Specification & Application

Shock-Resisting Tool Steel

Chemical composition(wt.%) of S2 grade:

Elements Min.（≥） Max.（≤） Similar Remarks
C 0.40 0.55
Si 0.90 1.20
Mn 0.30 0.50
P - 0.030
S - 0.030
Cr - -
Mo 0.30 0.60
V - 0.50
W - -
Ni＋Cu - 0.75

S2 - Detail

Shock-Resisting Tool Steel

Mechanical properties of grade S2

Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
341 (≥) 378 (≥) 23 34 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical properties of grade S2

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm		 Modulus of elasticity
kN/mm2		 Expansion rate
473 (≥) 489 (≥) 22 11 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 234
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
636 728 543

Equivalent Grade

1 S2 2 M3 Class2 3 S2-10-1-8 4 S2-9-2-8 5 S2-9-1 6 S2-9-2 7 SKS2 8 SKS21 9 SKS2M 10 BS2 11 S20100 12 S20153 13 S20161 14 S20200 15 S20300 16 S20400 17 S20501 18 S20910 19 XM-31 20 S21400

Equivalent Products

1 X165CrMoV12 Cold working die steel

Product shapes we supply:

We can customize the production of S2 grade, contact us for the best solution.
–sales@specificsteel.com