Product List
Gangsteel Material Solution
Email: admin@gangsteel.com
Sales: jack@gangsteel.com
ASTM A514 Grade M Steel Plate is a quenched and tempered alloy steel with high yield strength (≥690 MPa) and excellent notch toughness. It is mainly used in high-stress structural applications, such as lifting equipment, offshore structures, bridges, and heavy-duty machinery frames.
Produced under the ASTM A514/A514M standard, this material delivers an outstanding balance between strength, weldability, and impact resistance, making it one of the preferred choices for engineers designing weight-sensitive but high-load structures.
Gangsteel, a leading manufacturer and exporter in China, offers ASTM A514 Gr M plates with various sizes, heat treatments, and customized cutting options for global projects.
Specification |
Details |
---|---|
Standard |
ASTM A514/A514M – High Strength Quenched and Tempered Alloy Steel |
Thickness |
6mm – 150mm |
Width |
Up to 3500mm |
Length |
Up to 12000mm |
Heat Treatment |
Quenched and Tempered |
Delivery Condition |
Q+T (Quenched + Tempered) |
Density |
7.85 g/cm³ |
Surface |
Mill finish, shot blasted, or pickled |
Origin |
Gangsteel, China |
Element |
Heat Analysis (%) |
Product Analysis (%) |
---|---|---|
C (Carbon) |
0.12–0.21 |
0.10–0.23 |
Mn (Manganese) |
0.45–0.70 |
0.41–0.74 |
P (Phosphorus, max) |
0.035 |
0.043 |
S (Sulfur, max) |
0.035 |
0.043 |
Si (Silicon) |
0.20–0.35 |
0.15–0.40 |
Ni (Nickel) |
1.20–1.50 |
1.15–1.55 |
Mo (Molybdenum) |
0.45–0.60 |
0.42–0.63 |
B (Boron) |
0.001–0.005 |
0.0005–0.0055 |
This composition gives A514 Gr M its characteristic high tensile strength, good toughness, and weldability.
Property |
Requirement |
Test Direction |
---|---|---|
Yield Strength (MPa) |
≥ 690 |
Longitudinal |
Tensile Strength (MPa) |
760–895 |
Longitudinal |
Elongation (%) |
≥ 18 |
Longitudinal |
Charpy V-Notch Impact (J @ -20°C) |
≥ 27 J |
Longitudinal |
Hardness (HBW) |
235 – 293 |
- |
Note: A514 Grade M exhibits excellent impact toughness even at subzero temperatures, making it suitable for cold-region engineering projects.
Condition Code |
Description |
---|---|
AR |
As Rolled |
N |
Normalized |
Q+T |
Quenched and Tempered (Standard) |
TMCP |
Thermo-Mechanically Controlled Process (Optional) |
Gangsteel generally supplies A514 Grade M in Q+T condition, ensuring consistent strength and uniform microstructure.
Parameter |
Tolerance |
---|---|
Thickness |
±0.3 mm (≤25 mm) / ±0.5 mm (>25 mm) |
Width |
+25 / –0 mm |
Length |
+50 / –0 mm |
Flatness |
≤ 3 mm per meter |
Edge Condition |
Mill Edge or Cut Edge |
Standard |
Grade |
Remarks |
---|---|---|
EN 10025-6 |
S690QL |
High strength Q+T structural steel |
GB/T 16270 |
Q690D / Q690E |
Chinese equivalent |
DIN 17102 |
StE690 / TStE690 |
German equivalent |
JIS G3106 |
SM570 |
Similar strength, different impact grade |
BS EN 10025-6 |
S690QL |
UK equivalent with fine-grain structure |
NF EN 10025-6 |
S690QL |
French equivalent for welded structures |
UNI EN 10025-6 |
S690QL |
Italian equivalent with high yield |
AS/NZS 3678 |
Grade 700 |
Australian/New Zealand equivalent for structural plates |
GOST 19281 |
14G2AF |
Russian low-alloy equivalent with similar yield |
IS 2062 |
E690 |
Indian high-strength structural equivalent |
CSA G40.21 |
700QT |
Canadian quenched and tempered equivalent |
SS EN 10025-6 |
S690QL |
Swedish equivalent for high-strength applications |
ASTM A514 Gr M plates are used across industries requiring high load-bearing capacity with reduced structural weight, including:
By choosing A514 Grade M, engineers can reduce overall structural weight by up to 20–30% compared to carbon steel plates, without sacrificing strength.
Gangsteel offers competitive prices based on plate thickness, width, and order volume.
Thickness (mm) |
Price (USD/ton, FOB China) |
---|---|
6–20 |
950 – 1050 |
21–50 |
980 – 1100 |
51–100 |
1100 – 1200 |
Note: Prices are subject to fluctuations in alloying elements and steel market conditions. For updated offers, contact us
Optional test services provided by Gangsteel:
Property |
A514 Gr M |
A514 Gr Q |
A514 Gr B |
A514 Gr E |
A514 Gr P |
---|---|---|---|---|---|
Yield Strength (MPa) |
690 |
690 |
690 |
690 |
690 |
Charpy Impact Temp |
-20°C |
-50°C |
-20°C |
-20°C |
-30°C |
Toughness Level |
High |
Very High |
Medium |
Medium |
High |
Typical Use |
Structural beams |
Offshore cranes |
Construction frames |
Bridge plates |
Mining equipment |
A514 Gr M provides an optimal balance between strength and low-temperature toughness, making it a cost-effective choice for general high-strength structural uses.
Gangsteel is one of the most trusted suppliers of A514 Grade M plates in China, with a strong record in supplying to global projects.
A514 Gr M is used for heavy-duty structures, cranes, bridges, and machinery requiring high strength and reduced weight.
Yes. It can be welded with low-hydrogen electrodes and proper preheating (typically 150–200°C) to avoid cracking.
Both have similar yield strength (690 MPa), but Grade Q has superior impact toughness for colder environments (-50°C).
Yes. Gangsteel provides EN10204 3.1 / 3.2 MTC, and can arrange TÜV or SGS witness testing.
Typically up to 2.5 inches for full 100 ksi yield strength, but Gangsteel can supply up to 150mm with adjusted properties.
Yes, with good Charpy impact values at -20°C, making it viable for moderate cold environments.
Use low-hydrogen processes, preheat to 150-200°C, and control interpass temperatures to prevent hydrogen cracking.
Yes, we offer CNC cutting, beveling, and drilling services for precise fabrication.
7.85 g/cm³, similar to other carbon and alloy steels.
It has some resistance due to alloying elements, but additional coatings are recommended for outdoor exposure.
EN 10025-6 S690QL is a close equivalent with similar high-strength properties.
ASTM A514 Grade M quenched and tempered steel plate offers a perfect combination of high yield strength, toughness, and weldability, making it ideal for demanding structural applications.
As a professional manufacturer and exporter, Gangsteel ensures top-quality materials, fast delivery, and customized service for global clients in construction, shipbuilding, and heavy machinery industries.
Contact Gangsteel today at admin@gangsteel.com for quotations and technical support.
For other grades in the ASTM A514 series, please visit:
ASTM A514 GR K is an alloy steel plate quenched and tempered for high strength. It's in the A514 family, with e
ASTM A514 Grade M Steel Plate is a quenched and tempered alloy steel with high yield strength (≥690 MPa) and
ASTM A514 Grade P quenched and tempered steel plate offers a perfect combination of high yield strength, toughn
ASTM A514 Grade Q quenched and tempered steel plate offers a perfect combination of high yield strength, toughn