817M40T / EN24
817M40T
EN24
General
EN24 IS A HIGH-STRENGTH ALLOY STEEL COMPRISING NICKEL, CHROMIUM, AND MOLYBDENUM. THIS COMBINATION PROVIDES EXCELLENT TENSILE STRENGTH, GOOD DUCTILITY, AND STRONG WEAR RESISTANCE. THE MATERIAL ALSO EXHIBITS RELIABLE IMPACT TOUGHNESS AT LOW TEMPERATURES AND PERFORMS WELL IN A RANGE OF ELEVATED TEMPERATURE ENVIRONMENTS.
Uses
HIGH STRENGTH SHAFTS, PUNCHES & DIES, DRILL BUSHINGS, RETAINING RINGS, GEARS
Heat Treatment & Condition
CONDITION T
Chemical Analysis
C
·
0.36/0.44
Si
·
0.10/0.35
Mn
·
0.45/0.70
P
·
0.035 MAX
S
·
0.04 MAX
Mo
·
0.20/0.35
Cr
·
1.00/1.40
Ni
·
1.30/1.70
| C | Si | Mn | P | S | Mo | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 0.36/0.44 | 0.10/0.35 | 0.45/0.70 | 0.035 MAX | 0.04 MAX | 0.20/0.35 | 1.00/1.40 | 1.30/1.70 |
Typical Mechanical Properties (EXAMPLE ONLY)
CONDITION T
TEN. STRENTH
850-1000 MPa
YIELD STRENGHT
650 MPa
ELONG.
13%
HARDNESS
248-302 HB
CONDITION U
TEN. STRENTH
925-1000 MPa
YIELD STRENGHT
755 MPa
ELONG.
12%
HARDNESS
269-331 HB
CONDITION V
TEN. STRENTH
1000-1150 MPa
YIELD STRENGHT
850 MPa
ELONG.
12%
HARDNESS
293-352 HB
CONDITION W
TEN. STRENTH
1075-1225 MPa
YIELD STRENGHT
940 MPa
ELONG.
11%
HARDNESS
311-375 HB
CONDITION X
TEN. STRENTH
1150-1300
YIELD STRENGHT
1020 MPa
ELONG.
10%
HARDNESS
341-401 HB
CONDITION Y
TEN. STRENTH
1225-1375 MPa
YIELD STRENGHT
1095 MPa
ELONG.
10%
HARDNESS
363-429 HB
CONDITION Z
TEN. STRENTH
1550 MPa
YIELD STRENGHT
1235 MPa
ELONG.
5%
HARDNESS
444 HB
| CONDITION T | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS | CONDITION U | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS | CONDITION V | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS | CONDITION W | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS | CONDITION X | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS | CONDITION Y | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS | CONDITION Z | TEN. STRENTH | YIELD STRENGHT | ELONG. | HARDNESS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 850-1000 MPa | 650 MPa | 13% | 248-302 HB | 925-1000 MPa | 755 MPa | 12% | 269-331 HB | 1000-1150 MPa | 850 MPa | 12% | 293-352 HB | 1075-1225 MPa | 940 MPa | 11% | 311-375 HB | 1150-1300 | 1020 MPa | 10% | 341-401 HB | 1225-1375 MPa | 1095 MPa | 10% | 363-429 HB | 1550 MPa | 1235 MPa | 5% | 444 HB |