17-4PH
Characteristics
17-4PH is a precipitation hardening stainless steel with combustion resistance and corrosion resistance equivalent to SUS304, and high strength and hardness can be obtained by subjecting it to heat treatment. Because the aging process of 17-4PH can be conducted at low temperatures, no large strain is likely to result, thus being used for applications such as a long shaft.
Stock Form and Sizes
◆1000mm ◎2000mm ▲3000mm ■3500mm ●4000mm ★2500mm～3990mm
17-4PHPeeled round bars(ST)Specification：ASTM A564、ASME SA564、AMS 5643
| Size 10〜27 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 | 25 | 26 | 27 |
| ● (h9) | ● (h9) | ● (h9) | ★ | ★ | ★ | ★ | ||||||||
| Size 28〜55 | ||||||||||||||
| 28 | 30 | 32 | 33 | 35 | 36 | 38 | 40 | 42 | 44 | 45 | 46 | 48 | 50 | 55 |
| ★ | ★ | ★ | ★ | ★ | ★ | |||||||||
| Size 60〜160 | ||||||||||||||
| 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 110 | 120 | 130 | 140 | 150 | 160 |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ 135 NEW | ★ NEW | ★ NEW | ||||||
| Size 170〜200 | ||||||||||||||
| 170 | 180 | 190 | 200 | |||||||||||
Chemical composition
| Ni | Cr | Fe | C | Mn | Si | Co | P | S | Mo | Cu | N | Nb | Ta | Nb+Ta | W | V | other | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | 3.00 | 15.00 | 3.00 | 0.15 | ||||||||||||||
| max | 5.00 | 17.50 | 0.07 | 1.00 | 1.00 | 0.040 | 0.030 | 5.00 | 0.45 |
※Above is standard values of ASTM A564. For further information, please contact us.
Mechanical properties
17-4PH A
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | |||||
| max | HB363 |
17-4PH H900 Below 3″(76.2mm)
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 1310 | 1170 | 10 | 40 | HB388 |
| max |
17-4PH H900 76.2～203.2㎜
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 1310 | 1170 | 10 | 35 | HB388 |
| max |
17-4PH H1025 Below 8″(203.2mm)
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 1070 | 1000 | 12 | 45 | HB331 |
| max |
17-4PH H1075 Below 8″(203.2mm)
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 1000 | 860 | 13 | 45 | HB311 |
| max |
17-4PH H1150
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 930 | 725 | 16 | 50 | HB277 |
| max |
17-4PH H1150D
| Tensile Strength Mpa | 0.2% Yield Strength Mpa | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 860 | 725 | 16 | 50 | HB255 |
| max | HB311 |
※Above is standard values of ASTM A564. For further information, please contact us.
International Specification Comparison chart
| Material | Round bars | Plates/Sheets | Pipes/Tubes | ||
|---|---|---|---|---|---|
| Seamless | Welded | ||||
| JIS | SUS630 | G4303/G4318 | G4304/G4305 | ||
| ASTM | S17400 | A564 | A693 | ||
| ASME | S17400 | SA546 | SA693 | ||
| DIN/EN | 1.4542 | ||||
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