GB/T 1591 Q460D low alloy steel material

Q460 material is a Chinese steel grade under GB/T 1591 high strength low alloy structural steel standard. There are three quality grades under Q460 series steel: Q460C, Q460D and Q460E. Density of this steel is 7.85 g/cm³. Q460D GB low alloy steel tensile strength is 550-720 MPa; the yield strength is minimum 460 MPa when thickness less than 16mm. For Q460D steel impact test, the temperature is -20℃.
Equivalent grades of Q460D steel
Q460D low alloy steel specification:
Thickness: 1mm to 200mm; Width: 1500mm to 4500mm: Length: 3000mm to 27000mm

Chemical composition for plates and sheets of Q460D GB low alloy steel (ladle analysis, %)


C max.

Si max.

Mn max.

P max.

S max.

Cr max.

Ni max.

Cu max.

N max.

Nb max.

V max.

Ti max.

Mo max

B max

Al min.

0.20

0.60

1.80

0.030

0.025

0.30

0.80

0.55

0.015

0.11

0.20

0.20

0.20

0.004

0.015

Mechanical properties for plates and sheets of Q460D GB low alloy steel


Tensile requirements in different plate thickness (mm)

Q460D grade

t≤16

16-40

40-63

63-80

80-100

100-150

150-200

200-400

Yield strength (≥Mpa)

460

440

420

400

400

380

-

-

Grade

Q460D steel tensile strength, MPa

Elongation, % min.

t≤100

100-150

150-250

250-400

t≤40

40-63

63-100

100-150

150-250

250-400

Q460D

550-720

530-700

-

-

17

16

16

16

-

-

Main features of GB/T 1591 Q460D steel plate and sheet
Q460D GB low alloy steel has good weldability, cold & hot workability and corrosion resistance. It  is mainly used for manufacturing the plants of factory, the common construction and engineering machinery and equipment.

BBN Steel is one of top ten hot rolled plates brands in China. We can manufacture and export Q460D high strength low alloy steel sheet, hot rolled plates, heavy plates, Q460D GB low alloy steel strips, and round bars with competitive price. There are 3000 tons hot rolled plates and steel sections stock in Shanghai and Zhengzhou warehouses. Welcome to contact us for stock price.

Why Choose BBN Steel?

1. Competitive price and quality from our own factory
2. Approved by ISO9001, CE, SGS every year
3. Best online service with 24 hours reply
4. Deep processing service: cutting, welding, drilling, grinding, turning
5. Smooth production ability (3000tons/month)
6. Quick delivery and standard exporting package


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    There are three quality grades under Q460 series steel: Q460C, Q460D and Q460E. Density of this steel is 7.85 g/cm³. Q460D GB low alloy steel tensile strength is 550-720 MPa; the yield strength is minimum 460 MPa when thickness less than 16mm. For Q460D s

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