17.4PH
17.4PH
General
17-4 PH IS A MARTENSITIC PRECIPITATION HARDENING STAINLESS STEEL KNOWN FOR ITS EXCEPTIONAL COMBINATION OF HIGH STRENGTH, HARDNESS, AND CORROSION RESISTANCE. IT CAN BE HEAT TREATED TO DEVELOP A WIDE RANGE OF MECHANICAL PROPERTIES, MAKING IT HIGHLY VERSATILE ACROSS DEMANDING INDUSTRIES. SUPPLIED IN THE SOLUTION-TREATED CONDITION (CONDITION A), 17-4 PH OFFERS GOOD MACHINABILITY AND RESPONDS WELL TO AGE HARDENING.
Uses
GEARS, BOLTS AND VALVE COMPONENTS, PLASTIC MOULDING DIES, HIGH STRENGTH PUMPS. SHAFTS AND BOAT PROPELLER SHAFTS. ENGINE COMPONENTS.
Heat Treatment & Condition
CONDITION A, H900, H925, H1025, H1075, H1100, H1150
Chemical Analysis
C
·
0.070 MAX
Cr
·
15.00/17.00
Mn
·
1.50 MAX
Si
·
0.070 MAX
S
·
0.030 MAX
P
·
0.040 MAX
Ni
·
3.00/5.00
| C | Cr | Mn | Si | S | P | Ni |
|---|---|---|---|---|---|---|
| 0.070 MAX | 15.00/17.00 | 1.50 MAX | 0.070 MAX | 0.030 MAX | 0.040 MAX | 3.00/5.00 |
Typical Mechanical Properties
H900
TEN. STRENTH
1310 MPa
PROOF STRESS
1172 MPa
ELONG. 4D
10%
HARDNESS
388/444 HB
H925
TEN. STRENTH
1,172 MPa
PROOF STRESS
1,069 MPa
ELONG. 4D
10%
HARDNESS
375/429 HB
H1025
TEN. STRENTH
1069 MPa
PROOF STRESS
1000 MPa
ELONG. 4D
12%
HARDNESS
331/401
H1075
TEN. STRENTH
1000 MPa
PROOF STRESS
862 MPa
ELONG. 4D
13%
HARDNESS
311/375 HB
H1100
TEN. STRENTH
965 MPa
PROOF STRESS
793 MPa
ELONG. 4D
14%
HARDNESS
302/363 HB
H1150
TEN. STRENTH
931 MPa
PROOF STRESS
724 MPa
ELONG. 4D
16%
HARDNESS
277/352
| H900 | TEN. STRENTH | PROOF STRESS | ELONG. 4D | HARDNESS | H925 | TEN. STRENTH | PROOF STRESS | ELONG. 4D | HARDNESS | H1025 | TEN. STRENTH | PROOF STRESS | ELONG. 4D | HARDNESS | H1075 | TEN. STRENTH | PROOF STRESS | ELONG. 4D | HARDNESS | H1100 | TEN. STRENTH | PROOF STRESS | ELONG. 4D | HARDNESS | H1150 | TEN. STRENTH | PROOF STRESS | ELONG. 4D | HARDNESS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1310 MPa | 1172 MPa | 10% | 388/444 HB | 1,172 MPa | 1,069 MPa | 10% | 375/429 HB | 1069 MPa | 1000 MPa | 12% | 331/401 | 1000 MPa | 862 MPa | 13% | 311/375 HB | 965 MPa | 793 MPa | 14% | 302/363 HB | 931 MPa | 724 MPa | 16% | 277/352 |