55# Carbon Steel Coil/Strip
55# Carbon Steel Coil/Strip is a rolled thin-gauge product made from medium-carbon steel with a nominal carbon content of around 0.55%. This high carbon level provides significantly increased strength and hardness compared to low-carbon coils, but results in reduced ductility and more challenging cold forming and welding properties. This strip is often supplied in the normalized or cold-rolled condition to achieve specific mechanical properties. 55# coil/strip is typically used in applications requiring high wear resistance and strength, such as manufacturing flat springs, specialized automotive shims, high-strength bands, and various machine components where high surface hardness or ultimate strength is critical.
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- Commodity name: 55# Carbon Steel Coil/Strip
55# Carbon Steel Coil/Strip is a rolled thin-gauge product made from medium-carbon steel with a nominal carbon content of around 0.55%. This high carbon level provides significantly increased strength and hardness compared to low-carbon coils, but results in reduced ductility and more challenging cold forming and welding properties. This strip is often supplied in the normalized or cold-rolled condition to achieve specific mechanical properties. 55# coil/strip is typically used in applications requiring high wear resistance and strength, such as manufacturing flat springs, specialized automotive shims, high-strength bands, and various machine components where high surface hardness or ultimate strength is critical.
55# Carbon Steel Coil/Strip Description
Applications
Spring Manufacturing Automotive Components Agricultural Machinery Wear Plates & Liners Tool Parts Blade & Knife Production Railway Equipment Stamping & Blanking Heavy Engineering Parts Fastener Production Product Parameters
Product Name 55# Carbon Steel Coil/Strip Type Coil, Strip, Slit Edge Thickness 1.0mm - 12mm (Typical range for strip/coil) Length Coil weight up to 25 MT (Tonnes) Width 300mm - 1500mm (Standard widths, customizable slitting) Standard GB/T 699 (Equivalent to AISI 1055, DIN C55, JIS S55C, etc.) Surface Black (Hot Rolled), Pickled & Oiled (P&O), Cold Rolled Scope of Application Used for parts requiring high strength and wear resistance after heat treatment, such as: clutch plates, washers, automotive components, springs (depending on precise alloy/process), and high-strength machine parts. Certificate ISO, SGS, BV, LR, etc. Production Technology Hot Rolling (HR), Cold Rolling (CR) Edge Processing Mill Edge, Slit Edge, Deburred Edge Approximate grade comparison table
Standard System UNS GB/T (China) EN (Approx.) SAE/AISI JIS (Approx.) W. Nr. (German) Grade (Approx.) G10550 55 (High Quality Carbon Steel) C55 (1.0535) 1055 S55C 1.0535 Chemical Composition
Element C (Carbon) Mn (Manganese) Si (Silicon) P (Phosphorus) S (Sulfur) Cr (Chromium) Ni (Nickel) Cu (Copper) Composition (wt%) 0.52 - 0.60 0.50 - 0.80 0.17 - 0.37 ≤0.035 ≤0.035 ≤0.25 ≤0.30 ≤0.25 Mechanical Properties
Tensile Strength (Rm) (MPa) Yield Strength (ReH) (MPa) Elongation A5 (%) Hardness (HB) ≥650 ≥ 380 ≥13 ~190 - 230 Physical Performance
Property Density (g/cm3) Modulus of Elasticity (GPa) Mean Coeff. of Thermal Expansion (10−6/deg C) (20-100 deg C) Thermal Conductivity (W/m.K) (20 deg C) Value (Approx.) ~7.85 ~200 - 210 ~11.5 ~50 -
55# Carbon Steel Coil/Strip - Stock Warehouse
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55# Carbon Steel Coil/Strip - Product Inspection
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55# Carbon Steel Coil/Strip - Product Measurement
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55# Carbon Steel Coil/Strip- Product Packaging
Taigang Yilian
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Taigang Yilian has 10+ warehouses with ready stock. The annual supply capacity is approximately 10 million tons. It has 10 years of experience in large-scale project supply. The customer reorder rate reaches 86%. We ensure quality and quantity, provide material certificates, and will refund if the products are not qualified, so please be assured the purchase.
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