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A-514 Grades B, E, F, H, Q, S

Overview

A very popular grade used extensively within the construction industry in earth moving equipment, building / support apparatus, truck frames / bodies, oil rigs, booms, and drilling equipment just to name a few. This quenched and tempered HSLA (High Strength Low Alloy) product have both tensile / yield properties at min 100ksi.

Chemical Requirements

Elements represented in percentage – (max. thickness)

Elements Grade B
(1-1/4)
Grade E
(6)
Grade F
(2-1/2)
Grade H
(2)
Grade Q
(6)
Grade S
(2 1/2)
Carbon 0.12-0.21 0.12-0.20 0.10-0.20 0.12-0.21 0.14-0.21 0.11-0.21
Manganese 0.70-1.00 0.40-0.70 0.60-1.00 0.95-1.30 0.95-1.30 1.10-1.50
Phosphorus, max 0.030 0.030 0.030 0.030 0.030 0.030
Sulfur, max 0.030 0.030 0.030 0.030 0.030 0.020
Silicon 0.20-0.35 0.20-0.40 0.15-0.35 0.20-0.35 0.15-0.35 0.15-0.45
Nickel 0.70-1.00 0.30-0.70 1.20-1.50
Chromium 0.40-0.65 1.40-2.00 0.40-0.65 0.40-0.65 1.00-1.50
Molybdenum 0.15-0.25 0.40-0.60 0.40-0.60 0.20-0.30 0.40-0.60 0.10-0.35
Vanadium 0.03-0.08 A 0.03-0.08 0.03-0.08 0.03-0.08
Titanium 0.01-0.10 0.01-0.10 c
Zirconium
Copper 0.15-0.50
Boron 0.0005-0.005 0.001-0.005 0.0005-0.006 0.0005-0.005 0.001-0.005
Columbium, max 0.06

Tensile & Hardness Requirements

Thickness, in. (mm) Ultimate Tensile Strength ksi (MPa) Yield StrengthAmin, ksi (MP) Elongation in 2 in. (50 mm), B,C,D,E Reduction of Area,B,C Brinell HardnessFNumber
To 3/4 (20), incl 110 to 130 (760 to 895) 100 (690) 18 40G 235 to 293
Over 3/4 to 2-1/2 (20 to 65), incl 110 to 130 (760 to 895) 100 (690) 18 40G, 50H
Over 2-1/2 to 6 (65 to 150), incl 100 to 130 (690 to 895) 90 (620) 16 50H
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