Sunrise Metals

EN8 Round Bar – Specifications 1. Material Grade • EN8 / C45 Medium Carbon Steel • Equivalent: AISI 1045 ⸻ 2. Chemical Composition (Typical) • Carbon: 0.40–0.50% • Manganese: 0.60–1.00% • Silicon: 0.10–0.35% • Sulphur: ≤ 0.05% • Phosphorus: ≤ 0.05% ⸻ 3. Size Range • Dia: 10 mm to 400 mm • Supplied in: • Black bar • Peeled/turned • Bright bar • Polished finish ⸻ 4. Mechanical Properties (As Rolled) • Tensile strength: 550–650 MPa • Yield strength: ~280 MPa • Hardness: 170–220 HB • Good toughness and machinability After heat treatment (optional) • Can be hardened and tempered to 45–50 HRC depending on conditions. ⸻ 5. Forms Available • Hot rolled • Forged • Bright drawn • Peeled and ground • Cut-to-length bars ⸻ 6. Features • Medium strength • Good machinability • Can be heat treated for higher hardness • Good wear resistance • Stable and reliable for engineering work ⸻ 7. Applications • Shafts and axles • Pins and studs • Gears and bolts • Connecting rods • Automotive and machinery parts • General engineering components

EN24 Round Bar – Specifications 1. Material Grade • EN24 / 817M40 / SCM440 – High-strength alloy steel • Alloying elements provide high tensile strength, toughness, and wear resistance • Often supplied in quenched and tempered condition ⸻ 2. Chemical Composition (Typical) • Carbon (C): 0.36–0.44% • Manganese (Mn): 0.60–0.90% • Silicon (Si): 0.10–0.35% • Nickel (Ni): 1.80–2.10% • Chromium (Cr): 1.30–1.70% • Molybdenum (Mo): 0.20–0.30% • Sulphur (S): ≤ 0.035% • Phosphorus (P): ≤ 0.035% ⸻ 3. Size Range • Diameter: 10 mm to 300 mm • Length: Standard 3 m / 6 m • Custom lengths on request Forms: Hot rolled, forged, or bright drawn bars ⸻ 4. Mechanical Properties (Typical – Quenched & Tempered) • Tensile Strength: 850–1000 MPa • Yield Strength: 650–850 MPa • Elongation: 12–17% • Hardness: 248–302 HB (can vary depending on heat treatment) ⸻ 5. Features • High tensile strength and toughness • Excellent wear and fatigue resistance • Can be machined, forged, and heat treated • Suitable for critical and high-stress applications ⸻ 6. Applications • Shafts, gears, and couplings • High-strength fasteners • Automotive and aerospace components • Heavy-duty machinery parts • Hydraulic and pneumatic components • Engineering and industrial tools

EN31 Flat Bar – Specifications 1. Material Grade • EN31 / 100Cr6 / AISI 52100 – High carbon, chromium alloy steel • Supplied hardened and tempered for wear resistance and strength • Known for high hardness and fatigue resistance ⸻ 2. Chemical Composition (Typical) • Carbon (C): 0.95–1.05% • Chromium (Cr): 1.30–1.65% • Manganese (Mn): 0.25–0.45% • Silicon (Si): 0.10–0.35% • Sulphur (S): ≤ 0.035% • Phosphorus (P): ≤ 0.035% ⸻ 3. Size Range • Width: 10 mm to 200 mm • Thickness: 5 mm to 50 mm • Length: Standard 3 m / 6 m • Custom cut lengths available Forms: Hot rolled, forged, or precision ground ⸻ 4. Mechanical Properties (Hardened & Tempered) • Tensile Strength: 850–1100 MPa • Yield Strength: 600–900 MPa • Hardness: 58–65 HRC • Elongation: 10–15% ⸻ 5. Features • Very high wear resistance • Excellent hardness and fatigue strength • Stable dimensional accuracy after heat treatment • Can be machined, ground, or hardened • Ideal for high-stress engineering and precision applications ⸻ 6. Applications • Shafts, spindles, and gears • Bearing components and rollers • Automotive and industrial machinery • Tooling for cutting, pressing, and forging • High-strength engineering components