Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
P
S
<=0.21
<=0.35
<=1.50
<=0.045
<=0.045
Mechanical Properties
Tensile Strength
410-540 MPa
Yield Strength
>=275 MPa
Elongation
>=22%
Condition
Hot rolled, controlled rolled or normalized; yield up to 16 mm, elongation up to 40 mm (N/mm2 = MPa)
More data from GB/T 700:2006
From the standard
Yield strength by thickness or diameter6 thickness ranges
Thickness or diameter (mm)
Yield strength ReH, min (N/mm2 = MPa)
up to 16
275
over 16 to 40
265
over 40 to 60
255
over 60 to 100
245
over 100 to 150
225
over 150 to 200
215
Source: GB/T 700:2006, Table 2
Tensile strength1 range
Tensile strength Rm
410 to 540 MPa
Above 100 mm thickness the lower limit may be 20 N/mm2 lower; upper limit not a delivery term for wide strip.
Source: GB/T 700:2006, Table 2
Elongation by thickness or diameter5 thickness ranges
Thickness or diameter (mm)
Elongation A, min (%)
up to 40
22
over 40 to 60
21
over 60 to 100
20
over 100 to 150
18
over 150 to 200
17
Elongation may be 2 % lower (absolute) than the table value.
Source: GB/T 700:2006, Table 2
Impact test (V-notch)Charpy V-notch
Test temperature
+20 deg C
Absorbed energy, longitudinal, min
27 J
Test applies to thickness 12 mm and over or diameter 16 mm and over.
Source: GB/T 700:2006, Table 2
Cold bend test 180 degB = 2a
Sample direction
Up to 60 mm, bend diameter d
Over 60 to 100 mm, bend diameter d
Longitudinal
1.5a
2.5a
Transverse
2a
3a
a is the sample thickness or diameter; above 100 mm by negotiation.
Source: GB/T 700:2006, Table 3
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