Description
Factory-direct cold rolled coils — DC01, ST12, and SPCC grades rolled in-house with full chemical and mechanical traceability per EN 10130, DIN 1623, and JIS G 3141.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | CRC DC01 ST12 SPCC Cold Rolled Steel Coil |
| Product Type | Steel Coil |
| Steel Grade | DC01, ST12, SPCC |
| Standard | EN 10130, DIN 1623, JIS G 3141 |
| Section Shape | Coil / Sheet (slit to width) |
| Size Range | Thickness 0.2–3mm, Width 600–3000mm |
| Length | Coil / According to customer requirements |
| Technique | Cold Rolled |
| Surface Treatment | Annealed Black / Full Hard / Half Hard |
| Packaging | Export standard, seaworthy |
| Application | Tube deep drawing, construction, light industry, automotive, agriculture, commerce |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Tube & Pipe Manufacturing | Furniture frames, automotive exhaust systems, machinery hollow sections, handrail tubes |
| Construction & Infrastructure | Roof panels, roof grilles, light steel keel, ceiling panels |
| Light Industry & Appliances | Household appliance shells, chimney liners, kitchen equipment enclosures |
| Automotive | Corrosion-resistant interior structural parts, bracket formations |
| Agriculture & Food Processing | Food storage silos, freezing processing equipment housings, packaging material frames |
| Commerce & Logistics | Material storage racks, industrial packaging frames, warehouse shelving |
Where Thickness Tolerance Decides Whether Your Deep Drawing Line Stops
Tighter cold rolled tolerance means fewer cracked parts and less scrap on the stamping press.
When a coil arrives at the press with thickness variation beyond acceptable range, the drawing die either tears the material or leaves uneven walls — and by the time the operator notices, hundreds of pieces have already been scrapped. I have seen entire production batches rejected because the supplier shipped full hard material labeled as annealed, or mixed gauge coils within the same reel. For a CRC DC01 ST12 SPCC cold rolled steel coil supplier, controlling gauge consistency from entry to exit of the rolling mill is not optional — it is the difference between a clean draw and a costly teardown [NEED_CITE: cold rolled strip thickness tolerance standards per EN 10130].
How DC01, ST12, and SPCC Match Deep Drawing and Forming Requirements
The three grades — DC01 per EN 10130, ST12 per DIN 1623, and SPCC per JIS G 3141 — sit at the entry level of cold rolled forming steels, offering balanced ductility for moderate deep drawing, bending, and roll forming operations. When your project requires tube deep drawing for furniture frames or appliance housings, these grades provide sufficient elongation without springback issues that harder tempers would introduce. Our in-house laboratory tests each CRC DC01 ST12 SPCC cold rolled steel coil for grain structure and surface quality before release, ensuring the material flows consistently through progressive dies. For heavier drawing depths, we can advise whether annealed black or half hard condition better suits your tooling geometry.
Engineering Compliance and Certification Pathways for Cold Rolled Coil Procurement
Projects targeting EU markets require material conformity with EN 10130 for DC01, and buyers specifying DIN 1623 for ST12 often need documented equivalence when shipping from non-European mills. North American fabricators referencing SPCC under JIS G 3141 must confirm that the supplier can provide mill test certificates traceable to heat numbers — otherwise customs clearance stalls and project inspectors reject the batch [NEED_CITE: steel grade equivalence between EN 10130 and ASTM A366 for cold rolled sheet]. Surface condition selection — annealed black for further galvanizing, full hard for structural rigidity without forming — must align with your downstream processing sequence. Our production holds Lloyd’s Register EU CE certification and ISO 9001:2015 registration, with third-party inspection available through SGS or BV before container sealing.
Understanding the Steel Grade System and Cold Rolling Process for Coil Selection
DC01 belongs to the European EN 10130 designation system, where the “01” indicates the lowest carbon content tier — meaning maximum formability at the expense of strength. ST12 follows the older German DIN 1623 classification, functionally equivalent to DC01 but still specified by legacy engineering drawings across Central Europe and parts of the Middle East. SPCC originates from the Japanese JIS G 3141 standard and is widely requested across Southeast Asia and Africa where Japanese industrial specifications dominate procurement documents. The cold rolling process itself reduces hot rolled coil thickness at room temperature, producing a smoother surface finish, tighter dimensional tolerance, and higher strength through strain hardening — which is why subsequent annealing is critical for restoring ductility in deep drawing applications. Full hard coils skip the annealing step entirely, retaining maximum hardness for applications where forming is minimal; half hard sits between the two for moderate bending. Wall thickness in the 0.2–3mm range covers everything from precision electronic enclosures at the thin end to structural tube blanks at the heavier end.
The Hidden Cost of Ordering Cold Rolled Coil Without Verified Material Condition
Shipping a CRC DC01 ST12 SPCC cold rolled steel coil supplier’s product without confirmed annealing status or mill test certificate creates downstream risk that far exceeds the original price saving. A batch labeled SPCC but delivered in full hard condition will crack on the first deep drawing stroke; a coil with unverified chemistry may fail weld integrity tests at the fabrication shop; missing heat number traceability means the entire shipment cannot be certified for structural use — and replacement lead times push project deadlines past contractual penalties [NEED_CITE: importance of mill test certificates in international steel procurement compliance]. Correctly specified material with proper documentation costs marginally more upfront but eliminates rework, customs holds, and engineering rejections.
Why Engineering Procurement Teams Source CRC DC01 ST12 SPCC Cold Rolled Steel Coil Through Our Mill
We operate three dedicated cold rolling lines with in-house physical and chemical laboratories, meaning every CRC DC01 ST12 SPCC cold rolled steel coil is tested before leaving the facility — no third-party lab delays, no certificate gaps. Factory-direct pricing eliminates trading company markups, and our 2,800+ specification range covers non-standard widths and thicknesses that generic catalogs cannot fulfill. Each coil carries full heat number traceability from slab to finished product, supporting customs documentation and project inspector requirements across 50+ export destinations. Our professional loading team optimizes container weight distribution for 8–35MT coils, reducing freight cost per ton and preventing edge damage during ocean transit. Custom slit widths, special packaging for sensitive surface finishes, and door-to-door logistics coordination are handled in-house rather than outsourced to separate agents.
Documentation & Compliance
- Mill test certificate documenting DC01 chemical composition and mechanical properties per EN 10130, traceable to original heat number
- Lloyd’s Register EU CE certificate confirming conformity with cold formed steel product requirements for regulated markets
- ISO 9001:2015 quality management certificate covering the full production process from incoming slab inspection to final coil packaging
- SGS or BV third-party inspection report available upon request, covering dimensional verification, surface quality, and mechanical testing
- Material traceability sheet linking each CRC DC01 ST12 SPCC cold rolled steel coil to its production batch, chemical analysis, and rolling schedule
- Complete customs document package including packing list, bill of lading, and certificate of origin for destination country clearance
Packaging, Loading & Delivery
- Annealed black coils wrapped in multi-layer waterproof paper with outer steel sheet protection to prevent surface oxidation during ocean transit
- Full hard and half hard coils bundled with galvanized steel strips at four contact points, with edge protectors to prevent coil edge damage under tension
- Container loading optimized for 8–35MT coil weights, with wooden cradles and chocking systems to prevent shifting during vessel movement
- Custom slit widths available from 600mm to 3000mm, with tolerance confirmation provided before production to match your decoiler specifications
- Each coil marked with heat number, steel grade (DC01/ST12/SPCC), thickness, width, and net weight for on-site identification and inventory control
- Shipping terms available FOB, CIF, or DDP with real-time tracking and professional port coordination for destination clearance
Submit Your Specifications for Mill Test Certificate and Pricing Confirmation
Provide your required steel grade, thickness, width, surface condition, and destination port — we respond within 12 hours with unit pricing, production lead time, and sample mill test certificate format. For non-standard dimensions or specific tolerance requirements, our technical team reviews your drawing and confirms feasibility before contract signing.
Request Your CRC DC01 ST12 SPCC Cold Rolled Steel Coil Quotation Today
Send your specifications via email to admin@sdxjysteel.com or contact us directly at +86 188 5315 7756 (WhatsApp/WeChat available) to receive pricing, certification documents, and container loading confirmation.
Frequently Asked Questions
Q: What is the difference between DC01, ST12, and SPCC for deep drawing applications?
A: DC01 (EN 10130), ST12 (DIN 1623), and SPCC (JIS G 3141) are functionally equivalent low-carbon cold rolled grades offering similar formability. The selection typically depends on your regional specification requirements or customer drawing references rather than performance differences. Our laboratory can provide cross-reference documentation if your project requires grade equivalence confirmation.
Q: Can you provide mill test certificates for each coil shipped?
A: Yes, every CRC DC01 ST12 SPCC cold rolled steel coil is accompanied by an original mill test certificate documenting chemical composition, mechanical properties, and heat number traceability. Third-party inspection through SGS or BV is also available for projects requiring independent verification before shipment.
Q: What surface conditions are available for cold rolled coils?
A: We supply annealed black (soft condition for maximum formability), full hard (as-rolled for structural rigidity without further forming), and half hard (intermediate condition for moderate bending). The selection depends on your downstream processing — deep drawing requires annealed material, while roll forming for structural sections may use full hard or half hard.
Q: Can you slit coils to custom widths outside standard ranges?
A: Our slitting lines handle widths from 600mm to 3000mm with tolerance confirmation before production. For widths outside this range or specific edge trim requirements, provide your drawing specifications and we confirm feasibility with dimensional inspection reports included in the shipment documentation.
Q: How do you optimize container loading for heavy steel coils?
A: Our loading team plans container weight distribution for 8–35MT coils using wooden cradles and steel chocking systems to prevent movement during ocean transit. We provide loading photos and weight distribution confirmation before container sealing, ensuring compliance with shipping line weight limits and destination port handling equipment capacity.
