Application Information
Weldability: Due to the medium-high carbon content it can be welded with some precautions
Hardenability: Low hardenability; it shows intermediate features between those of steels with medium and those of steels with high carbon content; therefore it is not easy to obtain the required features by quenching in oil and the quenching in water can result in cracking.
Public Id
C40E - 1.1186
| Grade (EU) | C40E |
| Number | 1.1186 |
| USA | 1040 |
| Germany, DIN | Ck40 |
| Japan, JIS | S40C |
| France, ANFOR | XC42H1 |
| England, BS | 080M40 CS40 |
| Italy, UNI | C40 |
| Spain, UNE | C35k |
| Russia, GOST | 40 |
| Inter, ISO | C40E4 |
Standards
C40E - 1.1186
| EN 10277-5: 2008 |
| EN 10083-2: 2006 |
| EN 10132-3: 2000 |
Chemical Composition
C40E - 1.1186
| C | 0.37 - 0.44 |
| Si | max 0.40 |
| Mn | 0.50 - 0.80 |
| Ni | max 0.40 |
| P | max 0.030 |
| S | max 0.035 |
| Cr | max 0.40 |
| Mo | max 0.10 |
Mechanical Properties
C40E - 1.1186
| Nominal thickness | to 16 | 16 - 100 | 100 - 250 |
| Rm - Tensile strength (MPa) (+N) | 580 | 550 | 530 |
| Nominal thickness | 0.3 - 3 |
| Rm - Tensile strength (MPa) (+A) | 550 |
| Nominal thickness | 0.3 - 3 |
| Rm - Tensile strength (MPa) (+CR) | 970 |
| Nominal thickness | 5 - 10 | 10 - 16 | 16 - 40 | 40 - 63 | 63 - 100 |
| Rm - Tensile strength (MPa) (+C) | 700 - 1000 | 650 - 980 | 620 - 920 | 590 - 840 | 550 - 820 |
C40E - 1.1186
|
| Nominal thickness (mm) | to 16 | 16 - 100 | 100 - 250 |
Re - Upper yield strength or
Rp0.2 - 0.2% proof strength (MPa) (+N) | 320 | 290 | 260 |
| Nominal thicknes (mm) | 0.3 - 3 |
| Rp0.2 0.2% proof strength (MPa) (+A) | 440 |
| Nominal thickness (mm) | 5 - 10 | 10 - 16 | 16 - 40 | 40 - 63 | 63 - 100 |
| Rp0.2 - 0.2% proof strength (MPa) (+C) | 540 | 460 | 365 | 330 | 290 |
C40E - 1.1186
| KV Impact energy (J) (+QT) | +20° - 30 |
C40E - 1.1186
| Nominal thickness (mm): | 0.3 - 3 |
| A - Min. elongation Lo=80mm (%) (+A) | 18 |
| Nominal thickness (mm): | 5 - 10 | 10 - 16 | 16 - 40 | 40 - 63 | 63 - 100 |
| A - Min. elongation at fracture (%) (+C) | 6 | 7 | 8 | 9 | 9 |
C40E - 1.1186
| Nominal thickness (mm) | to 16 | 16 - 100 | 100 - 250 |
| A - Min. elongation Lo=5,65 √ So (%) (+N) | 16 | 17 | 17 |
C40E - 1.1186
| Brinell hardness (HBW) (+SH): | 163 - 211 |
| Vickers hardness (HV) (+CR): | 280 |
| Vickers hardness (HV) (+A) | 170 |
