现行

SAE AMS6412P

Steel, Bars and Forgings, 0.80Cr - 1.8Ni - 0.25Mo (0.35 - 0.40C) (4337)
钢 棒和锻件0.80Cr - 1.8Ni - 0.25Mo（0.35 - 0.40C）（4337）

2020-10-06

现行

SAE AMS6424H

Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.49 - 0.55C)
钢筋、锻件、机械管材和锻坯0.80Cr-1.8Ni-0.25Mo（0.49-0.55C）

2022-07-06

现行

SAE AMS6415V

Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340)
钢、棒材、锻件、机械卡套管和锻坯0.80Cr-1.8Ni-0.25Mo（0.38-0.43C）（SAE 4340）

2022-11-22

现行

SAE MAM6415C

Steel, Bars, Forgings, and Tubing, 0.80cr 1.8ni 0.25mo (0.38 0.43)
钢、棒材、锻件和管材 0.80cr 1.8ni 0.25mo（0.38 0.43）

2003-03-12

现行

SAE AMS6484F

Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340), Normalized and Tempered
正火和回火钢、棒材、锻件、机械管材和锻坯0.80Cr-1.8Ni-0.25Mo（0.38-0.43C）（SAE 4340）

2022-11-02

现行

SAE AMS6300J

Steel Bars, Forgings and Forging Stock 0.25Mo (0.35 - 0.40C) (SAE 4037) Aircraft Quality

2025-07-16

现行

SAE AMS6290L

Steel, Bars, Forgings, and Forging Stock, Carburizing, 1.8Ni - 0.25Mo (0.11 - 0.17C) (SAE 4615)
渗碳1.8Ni-0.25Mo(0.11-0.17C）钢、棒、锻件和锻件原料(SAE4615）

2023-05-22

现行

SAE AMS6414N

Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340), Vacuum Consumable Electrode Remelted
钢、棒材、锻件、机械管材和锻坯0.80Cr-1.8Ni-0.25Mo（0.38-0.43C）（SAE 4340）真空自耗电极重熔

2023-03-01

现行

SAE AMS6294L

Steel Bars and Forgings and Forging Stock, Carburizing, Aircraft Quality 1.8Ni - 0.25Mo (0.17 - 0.22C) (4620)
飞机用1.8Ni-0.25Mo（0.17-0.22C）（4620）渗碳棒材、锻件和锻坯

2023-10-20

现行

SAE AMS6300H

Steel Bars and Forgings, 0.25Mo (0.35 - 0.40C) (SAE 4037)
钢棒和锻件 0.25mo（0.35 - 0.40c）（sae 4037）

2020-10-19

现行

SAE AMS6409F

Steel, Bars, Forgings, Mechanical Tubing and Forging Stock 0.80Cr - 1.8Ni - 0.25Mo (0.38 - 0.43C) (SAE 4340) Special Aircraft Quality Cleanliness Normalized and Tempered
钢、棒材、锻件、机械管和锻坯0.80Cr-1.8Ni-0.25Mo（0.38-0.43C）（SAE 4340）特殊飞机质量清洁度正火和回火

2021-09-13

现行

SAE AMS6292L

Steel Bars and Forgings and Forging Stock, Carburizing, Aircraft Quality, 1.8Ni - 0.25Mo - (0.15 - 0.20C), (SAE 4617)
钢筋、锻件和锻件 渗碳 飞机质量 1.8 Ni-0.25Mo-(0.15-0.20 C) (SAE 4617)

2024-03-27

现行

SAE AMS6312L

Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 1.8Ni - 0.25Mo (0.38 - 0.43C) (4640), Aircraft Quality

2025-09-12

现行

SAE AMS6421J

Steel, Bars, Forgings, Mechanical Tubing and Forging Stock, 0.80Cr - 0.85Ni - 0.20Mo - 0.003B (0.35 - 0.40C) (Modified 98B37), Aircraft Quality

2025-09-12

现行

SAE AMS6312K

Steel Bars, Forgings, and Tubing 1.8Ni - 0.25Mo (0.38 - 0.43C) (4640)
钢棒 锻件和管件 1.8Ni-0.25Mo（0.38-0.43C）（4640）

2020-10-07

现行

SAE AMS6299H

Steel Bars, Forgings, and Mechanical Tubing and Forging Stock, Carburizing, Aircraft Quality, 0.50Cr - 1.8Ni - 0.25Mo - (0.17 - 0.23C), (SAE 4320H)
钢筋、锻件、机械管材和锻件 渗碳 飞机质量 0.50 Cr-1.8Ni-0.25Mo-(0.17-0.23 C) (SAE 4320H)

2024-04-01

现行

SAE AMS6477E

Steel, Bars, Forgings, Mechanical Tubing and Forging Stock, 0.80Cr (0.90 - 1.03C), For Bearing Applications

2025-09-10

现行

SAE AMS6320R

Steel Bars, Forgings, Rings and Forging Stock, 0.50Cr - 0.55Ni - 0.25Mo (0.33 - 0.38C) (8735)
棒材、锻件、环材和锻坯0.50Cr-0.55Ni-0.25Mo（0.33-0.38C）（8735）

2023-02-06

现行

SAE AMS6342K

Steel Bars, Forgings, and Tubing, 0.80Cr - 1.0Ni - 0.25Mo (0.38 - 0.43C) (SAE 9840)
钢棒 锻件和管材 0.80Cr-1.0Ni-0.25Mo（0.38-0.43℃）（SAE 9840）

2015-09-02

现行

SAE AMS6328P

Steel, Bars, Forgings, Mechanical Tubing, and Forging Stock, 0.50Cr - 0.55Ni - 0.25Mo (0.48 to 0.53C) (8750)
钢、棒材、锻件、机械卡套管和锻造坯料0.50Cr-0.55Ni-0.25Mo（0.48至0.53C）（8750）

2023-01-13