Chemical Composition (AMS 5731) | ||||||||||||||
Weight % | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | V | Al | B | Co | Cu |
A 286 | ||||||||||||||
0.08
Max | 2
Max | 0.025
Max | 0.025
Max | 1
Max | 13.5-
16 | 24-
27 | 1-1.5 | 1.9-
2.35 | 0.10-
0.50 | 0.35
Max | 0.003-
0.010 | 1
Max | 0.50
Max |
Phosphoric acid | Moderate | Acetic Acid | Good |
Sodium Hydroxide | Moderate | Sea Water | Moderate |
Salt Spray | Good | Nitric Acid | Good |
Sulfuric Acid | Moderate | Humidity | Excellent |
Sour oil/gas | Moderate |
est Temperature | Yield 0.2% | Yield0.2% | Yield 0.2% | Yield 0.2% | Tensile Strength | % Elongation in 2" {50.8mm} | % Reduction of Area | |
f/c | ksi | mpa | ksi | Mpa | ksi | Mpa | ||
70/21 | 90 | 621 | 92 | 655 | 145 | 1000 | 24 | 45 |
400/204 | 76 | 524 | 93 | 645 | 143 | 986 | 21 | 52 |
800/427 | 72 | 496 | 93 | 641 | 138 | 951 | 19 | 35 |
1000/538 | 62 | 427 | 87 | 603 | 131 | 903 | 18 | 31 |
1100/593 | 64 | 445 | 90 | 621 | 122 | 841 | 21 | 23 |
1200/649 | 62 | 431 | 88 | 607 | 103 | 713 | 13 | 14 |
1300/704 | 68 | 472 | 86 | 593 | 86 | 595 | 11 | 10 |
1400/760 | 44 | 307 | 62 | 427 | 64 | 441 | 18 | 23 |
1500/816 | 31 | 214 | 33 | 228 | 36 | 251 | 19 | 17 |
Typical Mechanical Properties | |||
A286 Solution Treated and Aged | 0.2 Proof Stress (min) | Tensile Strength (min) | Elongation (min) |
A286 Sol Tr and Aged (AMS) | 95 ksi (965 Mpa) | 140 ksi (655 Mpa) | 12% |
Typical Mechanical Properties | |||
A286 Solution Treated and Aged | 0.2 Proof Stress (min) | Tensile Strength (min) | Elongation (min) |
A286 Sol Tr and Aged (BS) | 590 N/mm2 | 900 N/mm2 | 13% |
A286 Sol Tr and Aged (AMS) | 85 ksi (586 mpa) | 130 ksi (896 mpa) | 15% |
A286 Physical properties:
Density | 7.93 g/cm3 |
Melting point | 1364-1424℃ |
A286 Solution Treated A286 Solution Treated is covered by specification AMS 5731 (AMS 5732 Capable) and BS HR52 | |
Solution Heat Treatment: | 980ºC ± 10 for > 1 hour, followed by air cool (BS)
1800ºF ± 25 (982 ± 14ºC) 1 hour, water/oil quench (AMS) |
Hardness: | ³ 217HB or 220 HB (BS)
³ 201HB (AMS) |
A286 Solution Treated and Aged (1800ºF)
A286 Solution Treated and Aged is covered by specifications AMS 5732, BS HR51, ASTM A638 660 Type 2, ASTM A453 660 Class B
Solution Heat Treatment: | 980ºC ± 10 for > 1 hour, followed by air cool (BS)
1800ºF ± 25 (982 ± 14ºC) 1 hour, water/oil quench (AMS) |
Precipitation Heat Treatment: | 720ºC ± 10 > 16 hours, followed by air cool (BS)
1300-1400 ºF (704-760ºC) hold not less 16 hours, air cool (AMS) |
Hardness: | 248 - 341 HB or 260 - 360 HV (BS)
248-341 HB (AMS) |
A286 Solution Treated and Aged (1650ºF)
A286 Solution Treated and Aged is covered by specifications AMS 5737, ASTM A638 660 Type 1, ASTM A453 660 Class A and EN-2303 (under 4" Bar)
Solution Heat Treatment: | 1650ºF ± 25 (899 ± 14ºC) 1 hour, water/oil quench (AMS) |
Precipitation Heat Treatment | 1300-1400 ºF (704-760ºC) hold not less 16 hours, air cool (AMS) |
Hardness | 277-363 HB (AMS) |
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