ASTM A514 GR F is a type of alloy steel plate that's quenched and tempered. This means it's treated to be very strong while still easy to weld and shape. It's part of the A514 family, with added elements like nickel and copper for better toughness in cold temps.
ASTM A514 GR F Specification
The ASTM A514 standard covers high-strength steel plates for welding in buildings or bridges. For Grade F, it focuses on plates up to 6 inches thick. The strength changes a bit with thickness to keep it tough.
Chemical Composition
|
Element |
Ladle Analysis (%) |
Product Analysis (%) |
|---|---|---|
|
Carbon (C) |
0.10-0.20 |
0.08-0.22 |
|
Manganese (Mn) |
0.60-1.00 |
0.56-1.04 |
|
Phosphorus (P) |
0.035 max |
0.043 max |
|
Sulfur (S) |
0.035 max |
0.043 max |
|
Silicon (Si) |
0.15-0.35 |
0.10-0.40 |
|
Nickel (Ni) |
0.70-1.00 |
0.65-1.05 |
|
Chromium (Cr) |
0.40-0.65 |
0.35-0.70 |
|
Molybdenum (Mo) |
0.40-0.60 |
0.37-0.63 |
|
Vanadium (V) |
0.03-0.08 |
0.01-0.10 |
|
Copper (Cu) |
0.15-0.50 |
0.10-0.55 |
|
Boron (B) |
0.0005-0.006 |
0.0000-0.007 |
Mechanical Properties
|
Thickness (inches) |
Yield Strength (min, ksi/MPa) |
Tensile Strength (ksi/MPa) |
Elongation (min, % in 2") |
Hardness (Brinell, HBW) |
Charpy V-Notch Impact (min, ft-lb at -50°F) |
|---|---|---|---|---|---|
|
Up to 2.5 |
100 / 690 |
110-130 / 760-895 |
18 |
235-293 |
20 (supplemental) |
|
2.5 to 6 |
90 / 620 |
100-130 / 690-895 |
16 |
235-293 |
20 (supplemental) |
Applications of A514 Grade F Steel Plate
ASTM A514 GR F plate works well in places needing strength and cold resistance. It's used in crane booms and lifts, where it carries heavy weights without breaking. In mining, it makes truck bodies and loaders that deal with rocks and cold weather. It's also in bridges, farm machines, and oil rigs.
Equivalent Grades for ASTM A514 Grade F
|
Country/Region |
Standard |
Equivalent Grade |
Key Matching Properties |
|---|---|---|---|
|
USA |
ASTM A514 |
Grade F |
Baseline: Q&T alloy with Ni-Cu, 100 ksi yield up to 2.5", low-temp impact to -50°F, for welded structures. |
|
Europe (General) |
EN 10025-6 |
S690QL |
Quenched/tempered; 690 MPa yield, tensile 770-940 MPa, elongation ≥14%, good cold toughness. |
|
Germany |
DIN EN 10025-6 |
S690QL |
Matches EN; high-strength Q&T, 235-295 HB, Cr-Mo-Ni for low-temp use. |
|
France |
NF EN 10025-6 |
S690QL / E690D |
Equivalent to EN; balanced strength, impact at -40°C, for machinery. |
|
Italy |
UNI EN 10025-6 |
S690QL |
Aligns with EN; fine-grain Q&T, tensile 770-940 MPa, abrasion-resistant. |
|
UK |
BS EN 10025-6 |
S690QL |
Per EN; 690 MPa yield, used in bridges with ductility and cold properties. |
|
Japan |
JIS G3128 |
SHY685N |
High-yield Q&T; 685 MPa yield, tensile 780-930 MPa, low-temp with Ni. |
|
China |
GB/T 16270 |
Q690D |
Low-alloy Q&T; 690 MPa yield, -20°C impact (up to -40°C), similar alloys. |
|
Australia/New Zealand |
AS/NZS 3678 |
Grade 700L |
Structural Q&T; 700 MPa yield, tensile 790-930 MPa, low-temp variant. |
|
Russia |
GOST 19281 |
15Kh2NMFA |
Low-alloy cold-tough; 590-690 MPa yield, impact to -60°C, Ni-Mo. |
|
India |
IS 2062 |
E690 |
High-strength Q&T; 690 MPa yield, elongation 14-18%, low-temp options. |
|
Sweden |
SS EN 10025-6 |
S690QL |
Matches EN; high-yield with cold impact resistance. |
|
Canada |
CSA G40.21 |
700QT |
Quenched/tempered; 700 MPa yield, low-temp toughness for structures. |
