Medium-Carbon Steel For Demanding Engineering Applications
EN 8D is a medium-carbon engineering steel offering a practical combination of strength, toughness, machinability and heat-treatability for a wide range of industrial components.
Available Forms: Round Bars | Flats | Blocks | Custom Sizes
Key Features
Reliable Strength For Engineering Components
Good Strength
Good Toughness
Machinability
Heat Treatable
Wear Resistance
Consistent Performance
EN 8D — Technical Specifications
| Property | Specification |
|---|---|
| Material | EN 8D |
| Steel Type | Medium-Carbon Engineering Steel |
| Carbon (C) | 0.40–0.45% |
| Manganese (Mn) | 0.70–0.90% |
| Silicon (Si) | 0.10–0.40% |
| Phosphorus (P) | 0.05% Max* |
| Sulphur (S) | 0.05% Max* |
| Available Forms | Round Bars, Flats, Blocks* |
| Supply | Full Length / Cut-to-Size |
| Element | Typical Composition |
|---|---|
| Carbon (C) | 0.40–0.45% |
| Manganese (Mn) | 0.70–0.90% |
| Silicon (Si) | 0.10–0.40% |
| Phosphorus (P) | ≤ 0.05%* |
| Sulphur (S) | ≤ 0.05%* |
| Iron (Fe) | Balance |
Available Forms
Available In The Form You Need
Round Bars
Suitable For Shafts, Axles, Pins, gears, and machined components.
Flats
For Engineering, Machining And Fabrication Requirements.
Blocks
Suitable For Component Manufacturing And Machining Applications.
Custom Sizes
Material Prepared According To Specified Dimensions, Subject To Availability.
Full Length
Available According To Tsi Metals’ Stock And Size Requirements.
EN 8D can be heat-treated to modify its strength, hardness, and toughness according to the application requirements.
| Treatment | Typical Temperature | Cooling |
|---|---|---|
| Normalizing | 830–860°C | Air |
| Annealing | 680–720°C | Slow / Furnace |
| Hardening | 820–860°C | Oil or Water |
| Tempering | 550–660°C | Air |
Supply Condition
Annealed
Suitable For Machining Where Reduced Hardness Is Required.
Normalized
Provides A Refined And Relatively Uniform Material Structure.
Hardened & Tempered
Suitable For Applications Requiring Higher Developed Strength And Hardness.
As-rolled
Available Subject To Stock And Applicable Specification.
Full Length
Supplied According To Available Dimensions.
Cut-to-size
Prepared According To Customer Requirements.
EN8d Is Commonly Supplied As Rolled, normalized, annealed, or hardened and tempered, depending on the application and specification.
Annealed
Suitable for machining where reduced hardness is required.
Normalized
Provides a refined and relatively uniform material structure.
Hardened & tempered
Suitable for applications requiring higher developed strength and hardness.
As-rolled
Available subject to stock and applicable specification.
Full length
Supplied according to available dimensions.
Cut-to-size
Prepared according to customer requirements.
En 8d is commonly supplied as rolled, normalized, annealed, or hardened and tempered, depending on the application and specification.
Share your requirement with our team and get the right steel solution for your application.
