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Grade 4B

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England B.S. Grade4B Metallic materials for surgical implants. Specification for unalloyed titanium and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Grade4B / Grade 4B
Category Grade Standard Region/Area Standard Content
Metals Grade 4B BS 7252-2 England Metallic materials for surgical implants. Specification for unalloyed titanium

Chemical composition(mass fraction)(wt.%) of the Grade 4B

Element Min Max Similar
Ti - - -
Others total - 0.4000 -
Others each - 0.1000 -
O2 - 0.0200 -
N2 - 0.0300 -
H2 - 0.0100 -
Fe - 0.2000 -
Cu 2.0000 3.0000 -
C - 0.0800 -

Mechanical Properties of steel grade Grade 4B

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)
241 (≥) 238 (≥) 13 44 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade Grade 4B

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
12 - -     0.21 -  
547 784 - 34.3 134   -  
276 - 22 33.2   323 424

Heat Treatment of steel grade Grade 4B

Heat treated : 1116°C - 1195°C

Technological Curves of steel grade Grade 4B

Cross Reference Table (Equivalent Grade) of Grade 4B

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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