SPCD ST12 ST13 DC01 DC03 DC04 0.4mm 0.5mm 0.6mm 0.9mm Cold Rolled Steel Sheet Coil
Brand:
Tianjin Emerson
- Overview
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Product Overview
Our cold rolled steel sheet coils cover the full spectrum of commercial and drawing-quality grades, from standard commercial quality to extra-deep-drawing applications. Available in precise thin gauges — 0.4mm, 0.5mm, 0.6mm, and 0.9mm — these coils are engineered for industries where dimensional accuracy, surface perfection, and formability are non-negotiable.
Cold rolled steel (CRC) is produced by cold-reducing hot-rolled pickled coils at ambient temperature, yielding a smooth, scale-free surface with tight thickness tolerances and enhanced mechanical properties. Whether you need basic commercial grade for general fabrication or specialized drawing grades for complex stamped parts, our comprehensive grade lineup has you covered.
Available Grades & Equivalents
Commercial Quality (CQ): SPCC, ST12, DC01 — ideal for simple bending and light forming applications where surface appearance is important but deep drawing is not required.
Drawing Quality (DQ): SPCD, ST13, DC03 — designed for moderate drawing operations including automotive panels, appliance housings, and formed containers requiring good ductility and uniform deformation.
Deep Drawing Quality (DDQ): SPCE, ST14, DC04 — engineered for severe forming and extra-deep-drawing applications such as complex automotive body parts, deep-drawn sinks, and intricate stamped components requiring maximum elongation and resistance to thinning.
All grades conform to international standards: JIS G3141 (Japan), DIN 1623 / EN 10130 (Europe), and GB/T 5213 (China). Cross-referencing between these grades ensures seamless substitution for global supply chains.
Specifications
| Product Name | SPCD ST12 ST13 DC01 DC03 DC04 0.4mm 0.5mm 0.6mm 0.9mm Cold Rolled Steel Sheet Coil |
| Thickness | 0.4mm, 0.5mm, 0.6mm, 0.9mm (primary gauges); 0.12mm–3.0mm full range available |
| Width | 600mm–1,500mm standard; slitting to custom widths from 20mm upward |
| Coil Inner Diameter | 508mm or 610mm per customer preference |
| Coil Weight | 3–8 metric tons standard; customized coil weights available |
| Edge Condition | Mill edge or trimmed edge |
Mechanical Properties by Grade
DC01 / SPCC / ST12 (Commercial Quality): Yield strength below 280 MPa; tensile strength 270–410 MPa; minimum elongation 28%. Suitable for simple bending, light drawing, and general fabrication where moderate strength and good surface finish are required.
DC03 / SPCD / ST13 (Drawing Quality): Yield strength below 240 MPa; tensile strength 270–370 MPa; minimum elongation 34%. Enhanced ductility for moderate drawing and stretch-forming operations without risk of cracking or tearing.
DC04 / SPCE / ST14 (Deep Drawing Quality): Yield strength below 210 MPa; tensile strength 270–350 MPa; minimum elongation 38%. Maximum formability for complex geometries, severe draws, and applications requiring uniform wall thickness after forming.
All mechanical values are tested longitudinally to the rolling direction per standard sampling protocols.
Production Process
Our manufacturing follows a tightly controlled cold rolling sequence. Hot-rolled pickled coils enter the tandem cold mill where they are reduced to target gauge through multiple stands with automatic gauge control maintaining thickness deviation within ±0.03mm for thin gauges. The cold-worked strip then passes through a continuous annealing line where precise temperature profiles restore ductility through recrystallization while preserving the strength gains from cold working. A final skin-pass rolling pass — typically 0.5% to 2% reduction — establishes the desired surface texture (dull or bright), improves flatness, and eliminates the yield point elongation phenomenon that causes stretcher strain marks during forming.
For deep drawing grades, special attention is paid to texture control during rolling and annealing to develop the favorable crystallographic orientation that enhances r-value (plastic strain ratio), ensuring material draws evenly in all directions without earing during cupping operations.
Applications by Gauge & Grade
0.4mm & 0.5mm — Precision Thin Gauges: Electronic enclosures, computer chassis, server racks, LED fixture housings, small appliance panels, metal furniture components, filing cabinets, drawer systems, automotive interior trim, battery casings, and precision stampings where weight reduction and material economy are priorities.
0.6mm — Versatile Medium Thin Gauge: Washing machine drums and cabinets, refrigerator inner liners and door panels, microwave ovens, air conditioner housings, automotive fenders and door skins, motorcycle fuel tanks, metal containers, and general appliance manufacturing.
0.9mm — Structural Thin Gauge: Automotive structural reinforcements, chassis components, building and construction profiles, shelving and racking systems, silencers and exhaust shields, agricultural equipment panels, and heavier-gauge stamped parts requiring greater rigidity.
Across all gauges, DC03/SPCD/ST13 and DC04/SPCE/ST14 grades serve the automotive sector for body-in-white components, while DC01/SPCC/ST12 handles general fabrication, furniture, and construction applications where cost efficiency matters most.
