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T51621

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P20 P21

Description

USA UNS T51621 Alloy tool steel and T51621 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: T51621
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy T51621 UNS USA Alloy tool steel
P3
T51603
T51604
P4
T51605
P5
T51606
P6
T51620
P20

Chemical composition(mass fraction)(wt.%) of the T51621

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) V(%) Al(%)
0.18～0.22 0.20～0.40 0.20～0.40 ≤0.030 ≤0.030 0.50～0.30 3.90～4.25 0.15～0.25 1.05～1.25

Mechanical Properties of steel grade T51621

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)
369 (≥) 354 (≥) 13 21 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade T51621

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
21 - -     0.12 -  
998 191 - 41.3 413   -  
343 - 31 24.2   433 444

Heat Treatment of steel grade T51621

Heat treated : 1314°C - 1311°C

Technological Curves of steel grade T51621

Cross Reference Table (Equivalent Grade) of T51621

Grade Standard Country Application
Q195 GBT China Engineering and welding
Q215 China Engineering and welding
Q215 B China Engineering and welding
Q235 China Engineering and welding
Q235 B China Engineering and welding
Q235 C China Engineering and welding
Q235 D China Engineering and welding
Q255 A China Engineering and welding
Q255 B China Engineering and welding
Q275 China Engineering and welding
Q235q C China Bridge structure with steel
Q235q D China Bridge structure with steel
Q345q E China Bridge structure with steel
Q345q C China Bridge structure with steel
ASTM 1030 ASTM USA General use carbon steel bar
UNS G10300 UNS USA General use carbon steel bar
ASTM 1005 ASTM USA General use carbon steel bar
UNS G10050 UNS USA General use carbon steel bar
ASTM 1006 ASTM USA General use carbon steel bar
UNS G10060 UNS USA General use carbon steel bar
P20 P21
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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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