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B338 Grade 18

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America ASTM B338Grade18 冷凝器和热交换器用无缝及焊接钛与钛合金管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: B338Grade18 / B338 Grade 18
Category Grade Standard Region/Area Standard Content
Metals B338 Grade 18 ASTM B338 America 冷凝器和热交换器用无缝及焊接钛与钛合金管

Chemical composition(mass fraction)(wt.%) of the B338 Grade 18

Element Min Max Similar
Ru 0.0800 0.1400 -
C - 0.0800 -
Ti - - -
N - 0.0300 -
Fe - 0.3000 -
H - 0.0150 -
O - 0.2500 -
Others each - 0.1000 -
Others total - 0.4000 -
Total Others - 0.4000 -
Total Each - 0.1000 -
Ti - - -
Ru 0.0800 0.1400 -
O - 0.2500 -
N - 0.0300 -
H - 0.0150 -
Fe - 0.3000 -
C - 0.0800 -

Mechanical Properties of steel grade B338 Grade 18

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)
938 (≥) 393 (≥) 44 11 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade B338 Grade 18

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
23 - -     0.43 -  
435 848 - 22.3 444   -  
522 - 34 12.2   231 113

Heat Treatment of steel grade B338 Grade 18

Heat treated : 1595°C - 1765°C

Technological Curves of steel grade B338 Grade 18

Cross Reference Table (Equivalent Grade) of B338 Grade 18

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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