ASTM A514 Grade H

Download data sheet

General Product Description

ASTM A514 Grade H is a quenched and tempered alloy steel plate for structural applications requiring high yield strength combined with good formability and toughness. A514 Grade H has a minimum yield strength of 100 ksi [690 MPa] and may be ordered with supplemental Charpy V-notch impact test requirements.

Applications

Typical applications for A514 Grade H include transport trailers, construction equipment, crane booms, mobile man-lifts, agricultural equipment, heavy vehicle frames and chassis, and welded bridge structural members.

Available Dimensions

Thickness
(inmm)
Thickness
(inmm)
1.251 - 2.0031.78 - 50.8
Width
(inmm)
72 - 1201800 - 3050
Length
(inmm)
240 - 6006100 - 15200

Mechanical Properties

Tensile Test: Tensile testing is performed in the transverse direction according to ASTM A6 requirements. The specified tensile properties and hardness requirements are tabulated below:

UTS
(ksi)
UTS
(ksi)
110 - 130
Elongation in 2"
(min %)
16
Reduction of area 1)
(min %)
35

1) Reduction in area for 1.5 in. wide rectangular tension specimen.

Charpy V-Notch Impact Toughness requirements may be ordered as a supplementary requirement. Please inquire for applications requiring a specified minimum impact toughness.

Chemical Composition

Meets chemical requirements of ASTM A514 Grade H, as shown below (wt % ladle analysis):

C
(%)
C
(%)
0.12 - 0.21
Mn
(%)
0.95 - 1.30
P
(max %)
0.025 1)
S
(max %)
0.005 1)
Si
(%)
0.20 - 0.35
Cr
(%)
0.40 - 0.65
Mo
(%)
0.20 - 0.30
Ni
(%)
0.30 - 0.70
V
(%)
0.03 - 0.08
B
(%)
0.0005 - 0.005

Inquire if a more restrictive chemistry is needed.

1) Note that SSAB’s P, S and Ti levels are more restrictive than ASTM A514 Grade B requirements.

Carbon Equivalent

(wt %)
Thickness (inmm)
Thickness (inmm)
Typical CET (wt %)
1.251 - 2.0031.78 - 50.8
0.36
Thickness (inmm)
Thickness (inmm)
Typical CEV (wt %)
1.251 - 2.0031.78 - 50.8
0.56

CEV and CET typical values are based on historical averages.

CET and CEV formula

Tolerances

Thickness, width, and length tolerances for A514 Grade H steel plate are in accordance with the requirements of ASTM A6. The flatness tolerance for as-supplied product is ½ ASTM A6.

Formability properties

ASTM A514 Grade H material exhibits good cold forming characteristics. Shear burrs and heat-affected zones of thermal cut edges on or near the bend axis as well as sharp corners on edges and on gas cut or punched holes located on or adjacent to the bend axis should be removed by grinding prior cold forming. The following recommended minimum inside bend radius, R, and die width opening, W, as a function of bending orientation are provided:

Thickness
(in. [mm])
Thickness
(in. [mm])
>1.25 – 2.0 [>31.8 – 50.8]
Bend Axis Perpendicular to Rolling Direction Inside Radius, R (min.)
4.5t
Bend Axis Perpendicular to Rolling Direction Die Width, W (min.)
12t
Bend Axis Parallel to Rolling Direction Inside Radius, R (min.)
6.75t
Bend Axis Parallel to Rolling Direction Die Width, W (min.)
16t

Weldability

Welding of A514 Grade H shall be performed in accordance with the applicable welding code. In the absence of a specified welding code, the following suggested minimum preheat and interpass temperatures and welding consumables are provided. Special welding consumables and welding procedures may be required to avoid detrimental effects on the mechanical properties of the base metal. Low hydrogen practices are strongly recommended, including the removal of surface moisture. A514 Grade H may be susceptible to reheat cracking in the heat-affected zone of welds during stress relieving or postweld heat treatment. As a result, SSAB recommends that a qualified welding engineer consider this potential before stress relieving weldments of this product.

Welding process
Welding process
Shielded Metal Arc (SMAW)
Thickness
(in. [mm])
>1.25 – 1.5 [31.8 – 38.1]
Minimum Preheat and Interpass Temperature
(°F [°C])
150 [65]
Consumables
AWS E10015-X, E10016-X, E10018-X, E10018-M
Welding process
Welding process
Shielded Metal Arc (SMAW)
Thickness
(in. [mm])
>1.5 – 2.0 [ 38.1 – 50.8]
Minimum Preheat and Interpass Temperature
(°F [°C])
200 [93]
Consumables
AWS E10015-X, E10016-X, E10018-X, E10018-M
Welding process
Welding process
Gas Metal Arc (GMAW)
Thickness
(in. [mm])
>1.25 – 1.5 [31.8 – 38.1]
Minimum Preheat and Interpass Temperature
(°F [°C])
150 [65]
Consumables
AWS ER110S-XXX-XX
Welding process
Welding process
Gas Metal Arc (GMAW)
Thickness
(in. [mm])
>1.5 – 2.0 [ 38.1 – 50.8]
Minimum Preheat and Interpass Temperature
(°F [°C])
200 [93]
Consumables
AWS ER110S-XXX-XX
Welding process
Welding process
Submerged Arc (SAW)
Thickness
(in. [mm])
>1.25 – 1.5 [31.8 – 38.1]
Minimum Preheat and Interpass Temperature
(°F [°C])
150 [65]
Consumables
AWS F11XX-EXXX-XX, F11XX-ECXXX-XX
Welding process
Welding process
Submerged Arc (SAW)
Thickness
(in. [mm])
>1.5 – 2.0 [ 38.1 – 50.8]
Minimum Preheat and Interpass Temperature
(°F [°C])
200 [93]
Consumables
AWS F11XX-EXXX-XX, F11XX-ECXXX-XX
Welding process
Welding process
Flux Cored Arc (FCAW)
Thickness
(in. [mm])
>1.25 – 1.5 [31.8 – 38.1]
Minimum Preheat and Interpass Temperature
(°F [°C])
150 [65]
Consumables
AWS E11XTX-X, E11XTX-XM
Welding process
Welding process
Flux Cored Arc (FCAW)
Thickness
(in. [mm])
>1.5 – 2.0 [ 38.1 – 50.8]
Minimum Preheat and Interpass Temperature
(°F [°C])
200 [93]
Consumables
AWS E11XTX-X, E11XTX-XM

Show specs in:

ImperialMetric