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SchCh 15

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Bulgaria BDS SchCh15 Seamless tubes for ball and roller bearings and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: SchCh15 / SchCh 15
Category Grade Standard Region/Area Standard Content
Metals SchCh 15 BDS 12731 Bulgaria Seamless tubes for ball and roller bearings

Chemical composition(mass fraction)(wt.%) of the SchCh 15

Element Min Max Similar
Si 0.1700 0.3700 -
S - 0.0200 -
P - 0.0270 -
Ni - 0.3000 -
Mn 0.2000 0.4500 -
Cu - 0.2500 -
Cr 1.3000 1.6500 -
C 0.9500 1.0500 -

Mechanical Properties of steel grade SchCh 15

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
393 (≥) 735 (≥) 13 24 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 143

Physical Properties of steel grade SchCh 15

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
22 - -     0.22 -  
258 982 - 22.3 443   -  
693 - 13 42.2   442 421

Heat Treatment of steel grade SchCh 15

Heat treated : 1815°C - 1419°C

Technological Curves of steel grade SchCh 15

Cross Reference Table (Equivalent Grade) of SchCh 15

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
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