Q460 Steel Chemical Composition, Specifications, Properties & Equivalent

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Q460 Steel Introduction

Q460 steel is a Chinese steel grade of Low Alloy High Strength Structural Steel, Yield Strength is 460 MPa, data is tested with 16mm diameter steel bars or steel plates, tensile strength is 550-720 Mpa, test with steel bar Ø≤40mm.For Q460 steel equivalent, chemical composition and mechanical properties, please see the tables below.

Properties and Applications

Q460 steel has much higher strength and has high comprehensive mechanical properties in normalizing, normalizing plus tempering, or quenching plus tempering, all of which are deoxidized with aluminum. It is used for large-scale engineering structures and lightweight structures that require high strength and large loads.

Q460 structural steel used in Bird's Nest Stadium
Q460 structural steel used in Bird’s Nest Stadium

Datasheet & Specification

The following tables show Q460 alloy steel datasheet and specification, such as chemical composition, properties and equivalent grades, etc.

Table-1, Q460 Steel Chemical Composition

Chemical Composition (GB/T 1591 – 2008)
Steel Grade Quality Grade C % (≤) Si (≤) Mn (≤) P (≤) S (≤) Nb (≤) V (≤) Ti (≤) Cr (≤) Ni (≤) Cu (≤) N (≤) Mo (≤) B (≤) Als (≥)
Q460 Q460C 0.20 0.06 1.80 0.030 0.030 0.11 0.20 0.20 0.30 0.80 0.55 0.015 0.20 0.004 0.015
Q460D 0.030 0.025
Q460E 0.025 0.020
Chemical Composition (GB/T 1591 – 2018)
Steel Grade C % (≤) Si (≤) Mn (≤) P (≤) S (≤) Nb (≤) V (≤) Ti (≤) Cr (≤) Ni (≤) Cu (≤) Mo (≤) N (≤) B (≤)
Q460C 0.20 0.55 1.80 0.030 0.030 0.05 0.13 0.05 0.30 0.80 0.40 0.20 0.015 0.004

Table-2, Carbon Equivalent Value (CEV)

Delivered in hot rolled state (based on smelting analysis)

CEV (Mass fraction ≤%); Nominal thickness or diameter Ø
Steel Grade Quality Grade ≤ 30 30 < Ø ≤ 63 63 < Ø ≤ 150 150 < Ø ≤ 250 250 < Ø ≤ 400
Q420 Q420C 0.47 (CEV) 0.49 0.49

Table-3, Q460 Mechanical Properties (Hot rolled)

Thickness or Dia. (Ø) mm; Yield Strength (≥N/mm2)
Steel Grade Quality Ø≤16 16< Ø ≤40 40 < Ø ≤63 63 < Ø ≤ 80 80 < Ø ≤ 100 100 < Ø ≤ 150 150 < Ø ≤ 200 200 < Ø ≤ 250 250 < Ø ≤ 400
Q460 Q460C 460 450 430 410 410 390
Dia. (Ø) mm; Tensile Strength (N/mm2)
Steel Grade Quality Level Ø≤100 100 < Ø ≤ 150 150 < Ø ≤ 250 250 < Ø ≤ 400
Q460 Q460C 520 – 720 530 – 700

Table-4, Elongation

Dia. (Ø) mm; Elongation (%)
Steel Grade Sample direction Ø≤40 40 < Ø ≤ 63 63 < Ø ≤ 100 100 < Ø ≤ 150 150 < Ø ≤ 200 250 < Ø ≤ 400
Q460 Horizontal 20 19 19 18
Vertical 21 20 20 19

Equivalent Grades

Q460 steel equivalent to US ASTM, European EN, German DIN EN, Japanese JIS, France NF EN, British BS EN and ISO standard (For reference purposes only)

Q460 Equivalent
China US German Japan France UK ISO
Grade Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade Standard Grade
Q460C ASTM A572M Gr.65 DIN EN 10113-2,
DIN EN10113-3
S460NL,
S460ML
JIS G3106,
JIS G3114
SM570,
SMA570W,
SMA570P
NF EN 10113-2,
NF EN10113-3
S460NL,
S460ML
BS EN 10113-2,
BS EN10113-3
S460NL,
S460ML
ISO 4950-2,
ISO 4950-3
E460CC,
E460DD
Q460D ASTM A572M Gr.65 DIN EN 10113-2,
DIN EN10113-3
S460NL,
S460ML
JIS G3106,
JIS G3114
SM570,
SMA570W,
SMA570P
NF EN 10113-2,
NF EN 10113-3
S460NL,
S460ML
BS EN 10113-2,
BS EN10113-3
S460NL,
S460ML
ISO 4950-2,
ISO 4950-3
E460DD,
E460E
Q460E ASTM A572M Gr.65 DIN EN 10113-2,
DIN EN10113-3
S460NL,
S460ML
JIS G3106,
JIS G3114
SM570,
SMA570W,
SMA570P
NF EN 10113-2,
NF EN10113-3
S460NL,
S460ML
BS EN 10113-2,
BS EN10113-3
S460NL,
S460ML
ISO 4950-2,
ISO 4950-3
E460E,
E460E

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