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GB /T 5216-2004
Structural Steels Subject to End-quench Hardenability Requirments
Material Designation
Chemical Composition (%)
45H
(
U59455
)
Min
Max
15CrH
(
A20155
)
Min
Max
20CrH
(
A20205
)
Min
Max
20Cr1H
(
A20215
)
Min
Max
40CrH
(
A20405
)
Min
Max
45CrH
(
A20455
)
Min
Max
20CrMnH
(
A22205
)
Min
Max
15CrMnBH
(
A25155
)
Min
Max
17CrMnBH
(
A25175
)
Min
Max
40MnBH
(
A71405
)
Min
Max
20MnVBH
(
A73205
)
Min
Max
20MnTiBH
(
A74205
)
Min
Max
15CrMoH
(
A30155
)
Min
Max
20CrMoH
(
A30205
)
Min
Max
22CrMoH
(
A30225
)
Min
Max
42CrMoH
(
A30425
)
Min
Max
20CrMnMoH
(
A34205
)
Min
Max
20CrMnTiH
(
A26205
)
Min
Max
12Cr2Ni4H
(
A43125
)
Min
Max
20CrNi3H
(
A42205
)
Min
Max
20CrNiMoH
(
A50205
)
Min
Max
20CrNi2MoH
(
A50215
)
Min
Max
16CrMnH
(
A22165
)
Min
Max
45MnBH
(
A71455
)
Min
Max
For Reference Only
