Steel, Chrome-Molybdenum-Aluminum; Bars, Rods, Billets and Forging Stock (For Nitriding) (Aircraft Quality)
钢、铬钼铝；棒材、棒材、坯料和锻坯（用于渗氮）（飞机质量）

2002-09-04

Steel: Chrome-Molybdenum (4140) Bars Rods, and Forging Stock (For Aircraft Applications)
钢:铬钼（4140）棒材和锻坯（用于飞机应用）

2002-01-24

STEEL, CHROME-MOLYBDENUM-ALUMINUM; BARS, RODS, BILLETS AND FORGING STOCK (FOR NITRIDING) (AIRCRAFT QUALITY) (USE AMS6470, AMS6472) (SUPERSEDING MIL-S-6709) (S/S BY SAE-AMS6470K)
钢 铬钼铝；棒材、棒材、坯料和锻坯（用于渗氮）（飞机质量）（使用AMS6470、AMS6472）（取代MIL-S-6709）（由SAE-AMS6470K提供）

1965-03-24

STEEL, CHROME-MOLYBDENUM-ALUMINUM; BARS, RODS, BILLETS AND FORGING STOCK (FOR NITRIDING) (AIRCRAFT QUALITY) (USE AMS6470, AMS6472) (SUPERSEDING MIL-S-6709) (S/S BY SAE-AMS6470K)
钢 铬-钼-铝；棒材、棒材、坯料和锻造坯料（用于氮化）（飞机质量）（使用AMS6470、AMS6472）（取代MIL-S-6709）（由SAE-ams647k提供）

1994-12-12

STEEL, CHROME-MOLYBDENUM-ALUMINUM; BARS, RODS, BILLETS AND FORGING STOCK (FOR NITRIDING) (AIRCRAFT QUALITY) (USE AMS6470, AMS6472) (SUPERSEDING MIL-S-6709) (S/S BY SAE-AMS6470K)
钢 铬-钼-铝；棒材、棒材、坯料和锻造坯料（用于氮化）（飞机质量）（使用AMS6470、AMS6472）（取代MIL-S-6709）（由SAE-ams647k提供）

2002-09-18

STEEL, CHROME-MOLYBDENUM (4140) BARS, RODS, AND FORGING STOCK (FOR AIRCRAFT APPLICATION) (SUPERSEDING MIL-S-5626B) (S/S BY SAE-AMS6382M AND SAE-AMS6349B)
钢、铬钼（4140）棒材、棒材和锻坯（用于飞机应用）（取代MIL-S-5626B）（由SAE-AMS6382M和SAE-AMS6349B提供）

1968-07-17