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S99

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XC38 S 99

Description

UK B.S. BS 5S 99 : 1994, S99 Specialsteel 2.5 % nickel-chromiummolybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm) and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: S99
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel S99 Martensite B.S. UK 2.5 % nickel-chromiummolybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm)

Chemical composition(mass fraction)(wt.%) of the S99

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 S99

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)
743 (≥) 735 (≥) 24 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 321

Physical Properties of steel grade S99

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
44 - -     0.31 -  
143 343 - 33.3 222   -  
419 - 24 32.2   243 243

Heat Treatment of steel grade S99

Heat treated : 1148°C - 1668°C

Technological Curves of steel grade S99

Cross Reference Table (Equivalent Grade) of S99

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 S99

BS 5S 99 : 1994 2.5 % nickel-chromiummolybdenum (high carbon) steel billets, bars, forgings and parts (1230-1420 MPa: limiting ruling section 150 mm) BS-5S-99-:-1994.pdf
XC38 S 99
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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