Aircraft Steel D-6AC Vac Melt (AMS 6431)
Technical Data Sheet
Alloy D6AC Vac Melt N&T (LESCALLOY D6AC VAC ARC ®) is a medium carbon, low alloy steel. Alloy D6AC has ultra high strength and is designed for use in high strength structural applications (strength levels up to 280,000 psi). Alloy D6AC also is know for its high yield strength to tensile strength ratio, combined with good ductility. Due to alloy D6AC deep hardening characteristics it makes it applicable for fairly large sections.
| Chemical Composition Limits | |||||||
| Weight% | C | Si | Mn | Cr | Ni | Mo | V |
| D-6AC Vac Melt N&T | 0.46 | 0.25 | 0.75 | 1.10 | 0.60 | 1.00 | 0.10 |
Availability
Alloy D6AC Vac Melt N&T (LESCALLOY D6AC VAC ARC ®) is available in bar (round bar). For all stock availability contact Sales.
Typical Mechanical Properties
| Material | Tempering Treatment |
Ultimate Tensile Strength (Mpa) | 0.2 % Yield Strength (Mpa) | % Elongation | % Reduction of Area | Hardness HRC |
| LESCALLOY D6AC VAC ARC ® | 316°C (600°F) | 1931 | 1724 | 7 | 23 | 53 |
| LESCALLOY D6AC VAC ARC ® | 510°C (950°F) | 1572 | 1345 | 7 | 25 | 46 |
| Heat Treatment before temper. A ustenitized at 1650°F (899°C). Oil quenched and air cooled, or salt quenched at 400-425°F (204-218°C) for ten minutes and air cooled | ||||||
Specifications
AMS 6431
AMS 2300
AMS-S-8949
MIL-S-8949
UNS K24728
FMS-1011
GM-1013
LCM-05-2190
STM-05-500
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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.
