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S 99

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S99 AISI 650

Description

UK B.S. BS 5S 99 : 1994, S 99 Specialsteel Technical requirements for 2.5 % Ni-Cr-Mo (high carbon) steel black bar and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: S 99
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel S 99 Martensite B.S. UK Technical requirements for 2.5 % Ni-Cr-Mo (high carbon) steel black bar

Chemical composition(mass fraction)(wt.%) of the S 99

C Si Mn P S Cr Mo Ni Al Fe
0.36 -0.44 0.10 -0.35 0.45 -0.70 ≤0.025 ≤0.015 0.5 -0.8 0.45 -0.65 2.3 -2.8 0.015 -0.050 ≤Base

Mechanical Properties of steel grade S 99

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)
817 (≥) 129 (≥) 32 23 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical Properties of steel grade S 99

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
31 - -     0.14 -  
312 565 - 34.3 431   -  
484 - 42 42.2   124 123

Heat Treatment of steel grade S 99

Heat treated : 1558°C - 1585°C

Technological Curves of steel grade S 99

Cross Reference Table (Equivalent Grade) of S 99

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

Relevant standard of S 99

BS 5S 99 : 1994 Technical requirements for 2.5 % Ni-Cr-Mo (high carbon) steel black bar BS-5S-99-:-1994.pdf
S99 AISI 650
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