ASTM A517 Grade Q

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General Product Description

ASTM A517 Grade Q is a high-strength, quenched and tempered alloy steel plate intended for pressure vessel applications. A517 Grade Q is available in thicknesses up to 3.6 in. and has a minimum yield strength of 100 ksi up to 2.5 in. thick and 90 ksi for plates greater than 2.5 in. thick to 3.6 in. thick. ASTM A517 Grade Q also has required Charpy V-notch impact property requirements.

Dimension Range

Grade
Grade
Q
Product type
Plate
Thickness
(inmm)
0.197 - 3.605.00 - 91.4
Width
(inmm)
60 - 131.91500 - 3350
Length
(inmm)
73 - 5901900 - 15000

Mechanical Properties

Tensile Test: Tensile testing is performed in the transverse direction according to ASTM A20 requirements.

Grade
Grade
Q
Thickness
(inmm)
0.197 - 2.505.00 - 63.5
Yield strength
(min ksi)
100
Tensile strength
(ksi)
115 - 135
Elongation in 2" 1)
(min %)
16
Reduction in area for rectangle specimens 2)
(min %)
35
Reduction in area for round specimens 3)
(min %)
45
Grade
Grade
Q
Thickness
(inmm)
0.251 - 3.606.38 - 91.4
Yield strength
(min ksi)
90
Tensile strength
(ksi)
105 - 135
Elongation in 2" 1)
(min %)
14
Reduction in area for rectangle specimens 2)
(min %)
—
Reduction in area for round specimens 3)
(min %)
45

1) See specification A20 for elongation adjustment.

2) Reduction in area for 1.5 inches wide rectangular tension specimen.

3) Reduction in area for 0.5 inch wide round tension specimen.

Mechanical Testing

Charpy V-Notch Impact Properties: A trasverse Charpy V-notch lateral expansion of 0.015” [0.38 mm] in individual specimens is required. The test temperature shall be agreed upon between the manufacturer and purchaser. Please inquire for required Charpy V-notch test temperature and for other specified minimum impact property requirements.

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