826M40 / EN26
826M40
EN26
General
EN26 IS A HIGH-STRENGTH NICKEL-CHROMIUM-MOLYBDENUM ALLOY STEEL, SUPPLIED HOT ROLLED AND HEAT TREATED TO ‘W’ CONDITION. WITH A TYPICAL TENSILE RANGE OF 1075–1225 N/MM², IT OFFERS GREATER STRENGTH THAN EN24 (817M40) OR 826M31. THIS GRADE PROVIDES EXCELLENT TOUGHNESS, DUCTILITY, AND SHOCK RESISTANCE. IT CAN BE FLAME OR INDUCTION HARDENED AND IS ALSO SUITABLE FOR NITRIDING. EN26 MAINTAINS GOOD IMPACT VALUES EVEN WHEN TEMPERED BETWEEN 300–550°C AND PERFORMS WELL AT LOW TEMPERATURES.
Uses
SUITABLE FOR GEARS, SHAFTS, PINS, FASTENERS AND STUDS, ROLLERS AND CRANKSHAFTS, ETC.
Heat Treatment & Condition
MOSTLY COMMERCIALY AVAILABLE IN THE ANNEALED CONDITION,BUT OCCASIONALLY FOUND IN THE HARDENED & TEMPERED
Chemical Analysis
C
·
0.36/0.44
SI
·
0.10/0.35
MN
·
0.45/0.70
S
·
0.040 MAX
P
·
0.035 MAX
| C | SI | MN | S | P |
|---|---|---|---|---|
| 0.36/0.44 | 0.10/0.35 | 0.45/0.70 | 0.040 MAX | 0.035 MAX |
Typical Mechanical Properties
CONDITION U
TEN. STRENTH
925-1075 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 MPa
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 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 925-1075 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 MPa | 1020 MPa | 10% | 341-401 HB | 1225-1375 MPa | 1095 MPa | 10% | 363-429 HB | 1550 MPa | 1235 MPa | 5% | 444 HB |