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| Chemical Composition Limits | ||||||||
| Weight% | C | Si | Mn | P + S max | Cr | Ni | Cb + Ta | Cu |
| AMS 5643 | 0.07 | 1.0 max | 1.0 max | 0.04 P 0.03 S | 15.0 - 17.5 | 3.0 - 5.0 | 5 X C / 0.45 | 3.0 - 5.0 |
| AISI 630 | 0.07 | 1.0 max | 1.0 max | 0.04P 0.03 S | 15.0 - 17.5 | 3.0 -5.0 | 0.15 - 0.45 | 3.0 - 5.0 |
17-4 PH is a martensitic, precipitation-hardening stainless steel that provides an outstanding combination of high strength and hardness along with excellent corrosion resistance. 17-4 PH has good fabricating characteristics and can be age hardened by a single step, low temperature treatment. 17-4 PH is a versatile material widely used in the aerospace, chemical, petrochemical, food processing, paper and general metalworking industries.
| Material | Condition | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
| Alloy 17-4 PH Bar AMS 5643 | Cond A | - | - | - | - | 363 HB max |
| Alloy 17-4 PH Bar AMS 5643 | H900 | 190 | 170 | 10 | 40 | 388-444 |
| Alloy 17-4 PH Bar AMS 5643 | H925 | 170 | 155 | 10 | 44 | 375-429 |
| Alloy 17-4 PH Bar AMS 5643 | H1025 | 155 | 145 | 12 | 45 | 331-401 |
| Alloy 17-4 PH Bar AMS 5643 | H1075 | 145 | 125 | 13 | 44 | 311-375 |
| Alloy 17-4 PH Bar AMS 5643 | H1100 | 140 | 115 | 14 | 45 | 302-363 |
| Alloy 17-4 PH Bar AMS 5643 | H1150 | 135 | 105 | 16 | 50 | 277-352 |
| Material | Condition | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D (Values are for sheet <0.1874" thick) | % Reduction of Area | Rockwell C Hardness |
| Alloy 17-4PH Sheet/Plate AMS 5604 | Cond A | - | - | - | - | 38 max |
| Alloy 17-4PH Sheet/Plate AMS 5604 | H900 | 190 | 170 | 5 | - | 40-47 |
| Alloy 17-4PH Sheet/Plate AMS 5604 | H925 | 170 | 155 | 5 | - | 38-45 |
| Alloy 17-4PH Sheet/Plate AMS 5604 | H1025 | 155 | 145 | 5 | - | 35-42 |
| Alloy 17-4PH Sheet/Plate AMS 5604 | H1075 | 145 | 125 | 5 | - | 33-39 |
| Alloy 17-4PH Sheet/Plate AMS 5604 | H1100 | 140 | 115 | 5 | - | 32-38 |
| Alloy 17-4PH Sheet/Plate AMS 5604 | H1150 | 135 | 105 | 8 | - | 28-37 |
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