630 17-4PH 1.4542 Stainless Steel Bars
17-4PH, 630, EN 1.4542, DIN X5CrNiCuNb16-4 is a martensitic, chromium-nickel-copper
precipitation-hardening stainless steel that provides an outstanding combination of high strength,
good corrosion resistance, good mechanical properties at temperatures up to 600ºF (316ºC).
This alloy is typically furnished in Condition A (annealed) but can be cold rolled to various temper ranges.
Chemical composition ( % weight )
- Carbon: 0.070 max
- Manganese: 1.00 max
- Silicon: 1.00 max
- Chromium: 15.00-17.00
- Nickel: 3.00-5.00
- Copper: 3.00-5.00
- Columbium +Tantalum: 5 x Carbon min – 0.45 max
- Phosphorus: 0.040 max
- Sulfur: 0.030 max
- Iron: Balance
Density
0.280 lbs/in³, 7.80 g/cm³
MECHANICAL PROPERTIES AT ROOM TEMPERATURE
PROPERTIES: ANNEALED
AMS 5604 (gauges: ≥ .015 inches)
Ultimate Tensile Strength: 185 KSI max (1255 MPa max)
Yield Strength (0.2% offset): 160 KSI max (1105 MPa max)
Elongation: 3% Min
Hardness: Rc 38 max
PROPERTIES TEMPERED
Alloy 17-4 PH can be cold rolled to achieve the temper properties required by specific customers
and/or manufacturing requirements.
HEAT TREAT CAPABILITIES (AGED)
Typical Mechanical Properties
| Property | A | H900 | H925 | H1025 | H1075 | H1150 | H1150M |
| UTS | 1103 | 1448 | 1379 | 1276 | 1207 | 1103 | 1034 |
| YS | 1000 | 1379 | 1345 | 1172 | 1148 | 1034 | 896 |
| Elongation | 5.0 | 7.0 | 8.0 | 8.0 | 8.0 | 11.0 | 12.0 |
| Hardness, rockwell | C35 | C45 | C43 | C38 | C37 | C35 | C33 |
H900
Ultimate Tensile Strength:190 KSI min (1310 MPa min)
Yield Strength (0.2% Offset): 170 KSI min (1170 MPa min)
Elongation: 5% min
Hardness: Rc 40-48
H925
Ultimate Tensile Strength: 170 KSI min (1170 MPa min)
Yield Strength: 155 KSI min (1070 MPa min)
Elongation: 5% min
Hardness: Rc 38-46
H1025
Ultimate Tensile Strength: 155 KSI min (1070 MPa min)
Yield Strength: 145 KSI min (1000 MPa min)
Elongation: 5% Min
Hardness: Rc 35-43
H1075
Ultimate Tensile Strength: 145 KSI min (1000 MPa min)
Yield Strength: 125 KSI min (860 MPa min)
Elongation: 5% min
Hardness: Rc 35-43
H1100
Ultimate Tensile Strength: 140 KSI min (965 MPa min)
Yield Strength: 115 KSI min (790 MPa min)
Elongation: 5% min
Hardness: Rc 31-40
H1150
Ultimate Tensile Strength: 135 KSI min (930 MPa min)
Yield Strength: 105 KSI min (725 MPa min)
Elongation: 8% min
Hardness: Rc 28-38
H1400+1150
Ultimate Tensile Strength: 115 KSI min (790 MPa min)
Yield Strength: 75 KSI min (515 MPa min)
Elongation: 9% min
Hardness: Rc 26-32
The corrosion resistance of Type 17-4PH is comparable to that of Type 304 stainless Steel in most media and
superior to that of the hardenable 400 series stainless steels.
For Details, please Contact
WUXI GUANGLU Special Steel Co., Ltd.
Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com
