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A514 Heavy Steel Plate

ASTM A514 heavy plate steel has a min-yield strength of 100 ksi/690 MPa. It’s most commonly used as a structural steel in building construction, for cranes or other large machines supporting heavy loads.

A514 is used where a weldable, machinable, very high strength steel is required to save weight or meet ultimate strength requirements

A514-Heavy Availability

THICKNESSWIDTHLENGTH
Grade Q 3" – 8" 48" – 120" 96" – 480"
Grade E 3" – 8" 48" – 120" 96" – 480"
Grade F 3" – 8" 48" – 120" 96" – 480"
Grade S 3" – 8" 48" – 120" 96" – 480"
Grade H 3" – 8" 48" – 120" 96" – 480"

ASTM A514 Checmical Composition

A514 Steel Composition
  Grade Q Grade E Grade F Grade S Grade H
Carbon 0.14-0.21% 0.12-0.2% 0.1-0.2% 0.11-0.21% 0.12-0.21%
Manganese 0.95-1.3% 0.4-0.7% 0.6-1% 1.1-1.5% 0.95-1.3%
Phosphorus 0.03% 0.03% 0.03% 0.03% 0.03%
Sulfur 0.03% 0.03% 0.03% 0.02% 0.03%
Silicon 0.15-0.35% 0.2-0.4% 0.15-0.35% 0.15-0.45% 0.2-0.35%
Nickel 1.2-1.5% ... 0.7-1% ... 0.3-0.7%
Chromium 1-1.5% 1.4-2% 0.4-0.65% ... 0.4-0.65%
Molybdenum 0.4-0.6% 0.4-0.6% 0.4-0.6% 0.1-0.6% 0.2-0.3%
Vanadium 0.03-0.08% ... 0.03-0.08% 0.06 0.03-0.08%
Titanium ... 0.01-0.1% ... ... ...
Copper ... ... 0.15-0.5% ... ...
Boron ... 0.001-0.005% 0.0005-0.006% 0.001-0.005% 0.0005-0.005%
Columbium ... ... ... 0.06% ...

ASTM A514 Yield, Tensile & Elongation

The stress points of A514 vary by plate thickness, as follows.

ASTM A514 Steel Strength
Thickness Yield Point (ksi) Tensile Strength (ksi) Min. 2" Elongation % (200 mm)
To 3/4" 100 110-130 18
Over 3/4" to 2 1/2" 100 110-130 18
Over 2 1/2" to 6" 90 100-130 16