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No, ASTM A514 and ASTM A36 are not the same. ASTM A36 is a mild carbon steel with lower strength, commonly used for general structural purposes, while ASTM A514 is a high-strength low-alloy (HSLA) steel designed for demanding applications requiring superior yield and tensile strength. A36 is more economical and easier to fabricate but lacks the toughness and wear resistance of A514. As a leading manufacturer and exporter, Gangsteel specializes in ASTM A514/A514M steel plate, offering high-performance alternatives to A36 for projects needing enhanced strength, such as in heavy machinery and bridges.
A514 and A36 differ significantly in composition, mechanical properties, and applications. A36 is a basic carbon steel (ASTM A36/A36M), while A514 is quenched and tempered alloy steel (ASTM A514/A514M). Below is a comparison table highlighting these differences:
|
Property/Aspect |
ASTM A36 |
ASTM A514 (Typical for Grades like B or Q) |
|---|---|---|
|
Type |
Mild carbon steel |
High-strength low-alloy (HSLA) steel |
|
Yield Strength (min, ksi/MPa) |
36 / 250 |
100 / 690 (up to 2.5" thick) |
|
Tensile Strength (ksi/MPa) |
58-80 / 400-550 |
110-130 / 760-895 |
|
Elongation (min, %) |
20-23 |
16-18 |
|
Hardness (Brinell, HBW) |
119-162 |
235-293 |
|
Heat Treatment |
None required |
Quenched and tempered |
|
Typical Applications |
General construction, bolts, buildings |
Heavy machinery, cranes, bridges requiring high strength |
|
Weldability |
Excellent, no preheat needed |
Good, but requires preheat (e.g., 125-300°F) |
|
Cost |
Lower, more economical |
Higher due to alloying and processing |
Gangsteel's ASTM A514/A514M steel plate provides a high-strength upgrade over A36, with grades like astm a514 grade e offering added corrosion resistance.
The compositions reflect their differences: A36 has higher carbon for basic strength, while A514 includes alloys like chromium and molybdenum for enhanced properties. Typical values (in weight %):
|
Element |
ASTM A36 (max unless range) |
ASTM A514 (e.g., Grade B) |
|---|---|---|
|
C |
0.25-0.29 |
0.12-0.21 |
|
Mn |
1.03 (max) |
0.70-1.00 |
|
P (max) |
0.040 |
0.035 |
|
S (max) |
0.050 |
0.035 |
|
Si |
0.40 (max) |
0.20-0.35 |
|
Cr |
- |
0.40-0.65 |
|
Mo |
- |
0.15-0.25 |
|
V |
- |
0.03-0.08 |
|
Ni |
- |
- (varies by grade) |
For specific A514 grades like astm a514 grade f, compositions include nickel for added toughness.
Choose A36 for cost-sensitive, low-stress projects; opt for A514 when high strength and reduced weight are critical, such as in cranes or mining equipment. Gangsteel's A514 plates provide a robust alternative, with expert support for material selection.
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