Introduction to Q460 Steel
Q460 steel is a kind of Chinese high-strength low-alloy structural steel steel, the yield strength is 460 MPa, the data is tested with 16mm diameter steel bars or steel plates, the tensile strength is 550-720 Mpa, test with steel bar Ø≤40 mm. equivalent, chemical composition and mechanical properties, see the tables below.
Properties and applications
Q460 steel has much higher strength and comprehensive and high mechanical properties in normalizing, normalizing and tempering or quenching and tempering, all deoxidized with aluminum. It is used for large-sized engineering structures and light structures that require high strength and large loads.
Datasheet and specifications
The following tables show the data sheet and specifications of Q460 alloy steel, such as chemical composition, equivalent properties and grades, etc.
Table 1, Chemical Composition of Q460 Steel
| Chemical Composition (GB/T 1591 – 2008) | ||||||||||||||||
| Steel Grade | Quality grade | C% (≤) | Si (≤) | Mn (≤) | P(≤) | S (≤) | Nb (≤) | V (≤) | Ti (≤) | Cr (≤) | Ni (≤) | Cu (≤) | N (≤) | Mo (≤) | B (≤) | Also (≥) |
| 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 casting 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, Mechanical Properties Q460 (hot rolled)
| Thickness or Diameter. (Ø) millimeters; 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, Stretching
| Dia. (Ø) mm; Stretching (%) | |||||||
| 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 Notes
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)
| Equivalent to Q460 | |||||||||||||
| China | USA | German | Japan | France | UK | ISO | |||||||
| Note | Standard | Note | Standard | Note | Standard | Note | Standard | Note | Standard | Note | Standard | Note | |
| Q460C | ASTM A572M | Gr.65 | NOISE EN 10113-2, DIN EN10113-3 |
S460NL, S460ML |
JIS G3106, JIS G3114 |
SM570, SMA570W, SMA570P |
NF EN 10113-2, NF EN10113-3 |
S460NL, S460ML |
EN 10113-2, EN10113-3 |
S460NL, S460ML |
ISO 4950-2, ISO 4950-3 |
E460CC, E460DD |
|
| Q460D | ASTM A572M | Gr.65 | NOISE 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 |
EN 10113-2, EN10113-3 |
S460NL, S460ML |
ISO 4950-2, ISO 4950-3 |
E460DD, E460E |
|
| Q460E | ASTM A572M | Gr.65 | NOISE EN 10113-2, DIN EN10113-3 |
S460NL, S460ML |
JIS G3106, JIS G3114 |
SM570, SMA570W, SMA570P |
NF EN 10113-2, NF EN10113-3 |
S460NL, S460ML |
EN 10113-2, EN10113-3 |
S460NL, S460ML |
ISO 4950-2, ISO 4950-3 |
E460E, E460E |
|
