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You are here : BEBON STEEL > news > Views - ASTM A514/A514M A514GrQ High yield steel plate

ASTM A514/A514M A514GrQ High yield steel plate

The technical conditions apply to plates of A514GrQ with thickness not more than 150mm. (8mm-150mm)

Adopt standard:
ASTM A514/A514M Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding.

Thickness tolerance: +/-1.52mm
Flatness: 4mm/m
Surface shot blasting or peeled.

The third party inspection:
The chemical composition, tensile test and Charpy -V impact test for plates of A514GrQ shall be witnessed by surveyor of ABS.
Delivery conditions
The delivery conditions for plates of A514GrQ shall be: Quenching +Tempering.

ASTM A514GrQ Chemical Composition:

C

Si

Mn

P

S

Cr

Ni

Mo

V

B

Ti

Max 0.18

0.15- 0.35

0.95- 1.30

Max 0.020

Max 0.006

1.00- 1.50

1.20- 1.50

0.40- 0.60

0.030- 0.080

Max 0.005

Max 0.02

ASTM A514GrQ Mechanical properties:

Size(mm)

Mechanical properties

Lateral expansion

Hardness test

1/4 T

150

Yield strength MPa

Tensile strength MPa

Section shrinkage ratio %

Elongation %

mm

HB

Min 690

770-890

Min 50

Min 14

Min 0.38

230-290

A514GrQ steel plate Grain size:


No.

Test item

Quantity, Piece

Direction

Test method

1

Hardness

1

/

According to ASTM A370

2

Tensile test

2 (per heat treatment pc)

Transverse/

Longitudinal

3

Charpy-V impact test at -40C

3 (per heat treatment pc)

Longitudinal

4

3 (per heat treatment pc)

Longitudinal

5

Gas analysis

1

/

GB/T 14265

6

Nonmetallic inclusion

1

/

GB/T 10561

BBN STEEL ASTM A514/A514M is a high strength tempered alloy steel plate. Mainly used for rack-lifting of jack-up offshore drilling platforms.