Carbon Steel:
EN8 B – BRIGHT – 080M40
EN8 Bright is a medium-carbon steel with good strength, toughness and machinability. It’s often used in General Engineering, Automotive and Manufacturing applications. It can be heat-treated further to improve its mechanical properties, only to limited ruling section.
TYPICAL USES
Dynamo and Motor-shafts, heat-treated bolts, crankshafts, connecting rods, driving rings & flanges, railway couplings, axles, brackets, housings, miscellaneous gun carriage and small arms parts not subjected to high stresses or severe wear.
| EN8 B – BRIGHT – 080M40 SAE (AISI) 1043 W/Nr:. 1.0511 |  |
| MECHANICAL PROPERTIES | EN8 |
| Limited Ruling Sections | 150 |
| Tensile Strength; MPa minimum | 35 |
| Yield Stress; MPa minimum | 18 |
| Elongation, percent Min. | 20 |
| COLOUR CODE | YELLOW |
| Brinell Hardness Number | 152 / 207 |
| CHEMICAL COMPOSITION | |
|---|---|
| CARBON | : 0,37 – 0,44 |
| SILICON | : 0,05 – 0,40 |
| MANGANESE | : 0,50 – 0,80 |
| SULPHUR | : 0,045 MAX |
| PHOSPHORUS | : 0,045 MAX |
| MECHANICAL PROPERTIES | CONDITION | ||
| N | Hardened & Tempered | ||
| Q | R | ||
| Limited Ruling Sections Min. | 254 | 65 | 19 |
| Tensile Strength, Tons/Sq. in. Min. | 510 / 540 | 620 / 770 | 690 / 850 |
| Yield Stress, Tons/Sq. in. | 245 | 385 | 465 |
| Elongation, percent Min. | 17 | 16 | 16 |
| Izod Impact Value, Ft. LB. Min. | 20 | 33.4 | 33.4 |
| Brinell Hardness Number | 152 / 207 | 179 / 229 | 210 / 255 |
STANDARD STOCK SIZES
| SIZE | Kg/m | SIZE | Kg/m | SIZE | Kg/m | SIZE | Kg/m | SIZE | Kg/m |
| 6mm | 0,222 | 20mm | 2,466 | 38mm | 8,903 | 70mm | 30,210 | 125mm | 96,337 |
| 7mm | 0,302 | 21mm | 2,719 | 1 1/2″ | 8,950 | 75mm | 34,680 | 127mm | 99,441 |
| 8mm | 0,395 | 22mm | 2,984 | 40mm | 9,865 | 3″ | 35,799 | 130mm | 104,195 |
| 9mm | 0,499 | 7/8″ | 3,045 | 42mm | 10,876 | 80mm | 39,458 | 135mm | 112,364 |
| 10mm | 0,617 | 24mm | 3,551 | 1 3/4″ | 12,181 | 85mm | 44,545 | 140mm | 120,841 |
| 11mm | 0,746 | 25mm | 3,853 | 45mm | 12,485 | 3 1/2″ | 48,726 | 145mm | 129,627 |
| 12mm | 0,888 | 1″ | 3,978 | 48mm | 14,205 | 90mm | 49,939 | 150mm | 138,721 |
| 1/2″ | 0,994 | 26mm | 4,168 | 50mm | 15,413 | 95mm | 55,642 | 6″ | 143,195 |
| 14mm | 1,175 | 28mm | 4,824 | 2″ | 15,911 | 100mm | 61,654 | 155mm | 148,123 |
| 15mm | 1,387 | 1 1/8″ | 5,034 | 2 1/8″ | 17,962 | 4″ | 63,642 | 160mm | 157,833 |
| 5/8″ | 1,554 | 30mm | 5,549 | 55mm | 18,650 | 105mm | 67,973 | ||
| 16mm | 1,578 | 1 1/4″ | 6,215 | 2 1/4″ | 20,137 | 110mm | 74,601 | ||
| 17mm | 1,782 | 32mm | 6,313 | 60mm | 22,195 | 4 1/2″ | 80,547 | ||
| 18mm | 1,988 | 35mm | 7,553 | 2 1/2″ | 24,861 | 115mm | 81,537 | ||
| 19mm | 2,226 | 36mm | 7,990 | 65mm | 26,049 | 120mm | 88,781 |