EN8 | 080M40 Medium Carbon Steel
Specification
Manufacturing Standards
Information
080m40 Steel Properties, BS 970, en8 composition, en8 tensile strength, en8 yield strength, 080m40 material, 080m40 bs 970
Detailed Information
Manufacturer & Supplier of EN8 Carbon Steel in Mumbai, India
EN8 carbon steel is common medium carbon steel with medium tensile strength. It is stronger than mild steel because it hardens all the way through. EN8 carbon steel is also easy to work with no matter what.
Most of the time, EN8 steels are used in their original, untreated state. But EN8 steels can have their surfaces hardened even more through induction processes, making parts that are more resistant to wear. When steel EN8 is heat-treated, it has good, homogeneous metallurgical structures that make it easy to machine.
It may still be possible to get good heat treatment results on sections that are bigger than 65 mm, but it should be noted that the mechanical properties would get worse as you get closer to the middle of the bar. Because of this, EN8 steel materials in larger sizes should be supplied in their untreated state, and any heat treatment should be done after the initial stock is removed. This should give the core better mechanical properties.
EN8 Steel is a grade of steel in the BS 970 1955 Specification.
EN8 steel grade is part of the BS 970-1955 standard. This is a standard for wrought steel used in mechanical engineering and related fields. There are some other common steel grades in the BS 970 standards, such as EN9, EN19, EN24, EN36, etc. And in BS 970-1991, grade 080M40 steel is the one that is most like it.
EN8 carbon steel is available in these shapes:
We could supply EN8 steel in the form of a bright round bar that has been drawn or turned, as well as round hot rolled, hexagonal, square, steel flats and plates.
- EN8 Steel Round Bar: 8mm-1600mm
- EN8 Steel Cold Drawn Bar: 5mm-70mm
- EN8 Carbon Steel Flat & Plate: 10-1500mm x 200-3000mm
Other sizes and shapes are available; please send us an email to check.
EN8 Carbon Steel Grade Equivalents
Other grades of steel in the ASTM, DIN and JIS standards are similar to and the same as EN8 steel.
BS 970-1991:080M40
AISI/ASTM A29:1038, 1040, 1045
DIN Werkstoff No.: 1.0511, 1.1186, 1.1189
BS & DIN European: C40, CK40, C45, CK45
JIS G4051: S40C, S45C
Cities We Delivered
Chemical Composition of Carbon Steel EN8
Standard | Grade | C | Mn | P | S | Si |
BS 970 | EN8/080M40 | 0.36-0.44 | 0.60-1.00 | 0.05 | 0.005 | 0.10-0.40 |
Mechanical Properties and Hardness of EN8 Medium Carbon Steel
Heat Treatment | Tensile Strength Rm | Yield Strength
Rm |
Rp 0.2 | A min on | Impact | Hardness | |
5.65√So | Izod Ft.lb | KCV J | |||||
MPa | MPa | MPa | HB | ||||
N | 550 | 280 | – | 16 | 15 | 16 | 152/207 |
510 | 245 | – | 17 | – | – | 146/197 | |
Q | 625/775 | 385 | 355 | 16 | 25 | 28 | 179/229 |
R | 700/850 | 465 | 450 | 16 | 25 | 28 | 201/255 |
Carefully heat the EN8 steel, then raise the temperature to 1050°C so that it can be forged. Don’t forge anything below 850°C. After forging, en8 steel should be cooled slowly, ideally in a furnace.
Carbon Steel EN8 Heat Treatment
EN8 steel is usually sold untreated, but it can also be ordered normalized or heat-treated at the end, which is good for a wide range of uses.
Tempering – Carbon steel EN8 or 080M40 can be hardened by heating it between 550°C and 660°C (1022°F and 1220°F) for about an hour for every inch of thickness, then letting it cool in oil or water.
Normalizing – Bright mild steel EN8 is normalized at 830-860°C (1526°F-1580°F), and then it is cooled in air.
Quenching – Putting the steel in oil or water after heating it to this temperature will make it harder.
What EN8 Carbon Steel is used for
- general-purpose axles
- shafts,
- gears,
- bolts and studs.
- spindles,
- automotive and general engineering components,
- other general engineering parts etc.
Some customers in the Middle East, like the UAE, Europe, the UK, and Africa, like South Africa, buy steel grade EN8 from Lakshya International. Send emails with specific questions about the price of EN8 carbon steels.
Our Products
Our Latest Blogs

Stainless Steel 304 Pipe Price List
Check Stainless Steel Pipe Price list and SS 304 Pipe Price Per kg in India Stainless steel pipes are highly sought-after in a variety of industries due to their exceptional quality. The pricing of stainless steel pipes is outlined in the Stainless Steel Pipe Price...
Related Products
- Stainless Steel 304 Flanges
- Stainless Steel 304L Flanges
- Stainless Steel 304H Flanges
- Stainless Steel 310 Flanges
- Stainless Steel 310S Flanges
- Stainless Steel 310H Flanges
- Stainless Steel 316 Flanges
- Stainless Steel 316L Flanges
- Stainless Steel 316H Flanges
- Stainless Steel 316Ti Flanges
- Stainless Steel 317 Flanges
- Stainless Steel 317L Flanges
- Stainless Steel 321 Flanges
- Stainless Steel 321H Flanges
- Stainless Steel 347 Flanges
- Stainless Steel 904L Flanges
- Stainless Steel 304 Flanges
- Stainless Steel 304L Flanges
- Stainless Steel 304H Flanges
- Stainless Steel 310 Flanges
- Stainless Steel 310S Flanges
- Stainless Steel 310H Flanges
- Stainless Steel 316 Flanges
- Stainless Steel 316L Flanges
- Stainless Steel 316H Flanges
- Stainless Steel 316Ti Flanges
- Stainless Steel 317 Flanges
- Stainless Steel 317L Flanges
- Stainless Steel 321 Flanges
- Stainless Steel 321H Flanges
- Stainless Steel 347 Flanges
- Stainless Steel 904L Flanges
- Stainless Steel 304 Flanges
- Stainless Steel 304L Flanges
- Stainless Steel 304H Flanges
- Stainless Steel 310 Flanges
- Stainless Steel 310S Flanges
- Stainless Steel 310H Flanges
- Stainless Steel 316 Flanges
- Stainless Steel 316L Flanges
- Stainless Steel 316H Flanges
- Stainless Steel 316Ti Flanges
- Stainless Steel 317 Flanges
- Stainless Steel 317L Flanges
- Stainless Steel 321 Flanges
- Stainless Steel 321H Flanges
- Stainless Steel 347 Flanges
- Stainless Steel 904L Flanges
- Stainless Steel 304 Flanges
- Stainless Steel 304L Flanges
- Stainless Steel 304H Flanges
- Stainless Steel 310 Flanges
- Stainless Steel 310S Flanges
- Stainless Steel 310H Flanges
- Stainless Steel 316 Flanges
- Stainless Steel 316L Flanges
- Stainless Steel 316H Flanges
- Stainless Steel 316Ti Flanges
- Stainless Steel 317 Flanges
- Stainless Steel 317L Flanges
- Stainless Steel 321 Flanges
- Stainless Steel 321H Flanges
- Stainless Steel 347 Flanges
- Stainless Steel 904L Flanges
- Stainless Steel 304 Flanges
- Stainless Steel 304L Flanges
- Stainless Steel 304H Flanges
- Stainless Steel 310 Flanges
- Stainless Steel 310S Flanges
- Stainless Steel 310H Flanges
- Stainless Steel 316 Flanges
- Stainless Steel 316L Flanges
- Stainless Steel 316H Flanges
- Stainless Steel 316Ti Flanges
- Stainless Steel 317 Flanges
- Stainless Steel 317L Flanges
- Stainless Steel 321 Flanges
- Stainless Steel 321H Flanges
- Stainless Steel 347 Flanges
- Stainless Steel 904L Flanges
Before You Go…
would you like a copy of our Handy Guide to leasing an industrial unit straight to your inbox?
Error: Contact form not found.