Engineered Alloy Steel Supplier
Alloy Steel is essential for industrial fasteners that require extraordinary toughness and fatigue resistance. At Dalloyed, our alloy steel products are infused with elements like Chromium, Molybdenum, and Vanadium to enhance their mechanical properties under stress.
We focus on high-performance grades such as ASTM A193 B7 for refinery piping and ASTM A320 L7 for cryogenic (low-temperature) services. Our materials undergo precise Quenching and Tempering to ensure uniform hardness and high yield strength.
- Quenched & Tempered
- High Creep Resistance
- Impact Tested (L7 Grades)
- Precise Chemical Balance
Critical Alloy Grades
We stock and manufacture fasteners in these high-demand industrial grades.
The standard for high-pressure service. Chrome-Moly steel heat-treated for use in valves, flanges, and fittings.
Temp Range: -28°C to 450°CChromium-Molybdenum-Vanadium steel designed for high-temperature steam services in power plants.
Temp Range: Up to 525°CAlloy steel intended for low-temperature service. Requires mandatory Charpy impact testing.
Temp Range: Down to -101°CTechnical Comparison Table
| Property | Grade B7 | Grade B16 | Grade L7 |
|---|---|---|---|
| Tensile Strength (min) | 125 ksi | 125 ksi | 125 ksi |
| Yield Strength (min) | 105 ksi | 105 ksi | 105 ksi |
| Hardness (max) | 321 HBW | 321 HBW | 321 HBW |
| Reduction of Area (min) | 50% | 50% | 50% |
| Impact Energy (Charpy) | N/A | N/A | 20 ft-lbf @ -101°C |
Exporting Globally Since Years
Dalloyed provides Alloy Steel fasteners with premium coatings like Xylan 1014, PTFE, and Zinc-Nickel to prevent hydrogen embrittlement and corrosion.
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