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ASTM A9

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UNS T30108 UNS T30109
#ASTM # # #A9

Description

ASTM A9 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: ASTM A9
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel ASTM A9
ASTM A4
UNS T30104
ASTM A5
UNS T30105
ASTM A6
UNS T30106
ASTM A7
UNS T30107
ASTM A8
UNS T30108

Chemical composition(mass fraction)(wt.%) of the ASTM A9

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
0.45-0.55  0.95-1.15 0.2-0.5 0.03  0.03  4.75-5.5 1.25-1.75 
Mo Al W Nb Ti V Ce
1.3-1.8   0.8-1.4        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade ASTM A9

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)
635 (≥) 851 (≥) 21 22 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade ASTM A9

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
33 - -     0.22 -  
671 585 - 34.3 433   -  
924 - 11 32.2   331 223

Heat Treatment of steel grade ASTM A9

Heat treated : 1435°C - 1152°C

Technological Curves of steel grade ASTM A9

Cross Reference Table (Equivalent Grade) of ASTM A9

Grade Standard Country Application
ASTM 1030 ASTM USA General use carbon steel bar
ASTM 1005 ASTM USA General use carbon steel bar
ASTM 1006 ASTM USA General use carbon steel bar
ASTM 1008 ASTM USA General use carbon steel bar
ASTM 1010 ASTM USA General use carbon steel bar
ASTM 1013 ASTM USA General use carbon steel bar
ASTM 1015 ASTM USA General use carbon steel bar
ASTM 1016 ASTM USA General use carbon steel bar
ASTM 1017 ASTM USA General use carbon steel bar
ASTM 1018 ASTM USA General use carbon steel bar
ASTM 1019 ASTM USA General use carbon steel bar
ASTM 1020 ASTM USA General use carbon steel bar
ASTM 1021 ASTM USA General use carbon steel bar
ASTM W1-A ASTM USA Carbon tool steel
ASTM A182 F55 ASTM USA Super Duplex
ASTM 431 ASTM USA Martensitic special steel
ASTM 440A ASTM USA Martensitic special steel
ASTM 440B ASTM USA Martensitic special steel
ASTM 440C ASTM USA Martensitic special steel
ASTM 501 ASTM USA Martensitic special steel
UNS T30108 UNS T30109
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