Description
Factory-Direct Hot Rolled Supply — Own steel mill with 3 production lines and 2,800+ raw material specifications ensures every Hot Rolled Carbon Steel Coil S235JR S355JR supplier shipment carries full heat-number traceability from slab to coil.
Technical Specifications
| Parameter | Value |
|---|---|
| Designation | Hot Rolled Carbon Steel Coil (S235JR / S355JR / Q235B / SS400 / ASTM A36) |
| Product Type | Steel Coil |
| Steel Grade | S235JR, S355JR, Q235B, SS400, ASTM A36, SAE1006, Q195, Q345 |
| Standard | AISI, ASTM, BS, DIN, GB, JIS |
| Section Shape | Coil / Plate |
| Size Range | Thickness: 2.0 mm – 25 mm; Width: 600 – 1500 mm |
| Technique | Hot Rolled |
| Surface Treatment | Hot Rolled / Oiled / Dull finish |
| Tolerance | ±1% |
| Processing Service | Welding, Punching, Cutting, Bending, Decoiling |
| Packing | Standard seaworthy packing (plastic film + waterproof paper + steel strip) |
| Application | Shipbuilding, Boiler & Pressure vessels, Container manufacturing, Pipe making, Cold rolled feedstock, Construction, Transport, General fabrication |
| Origin | Shandong, China |
Application Suitability
| Industry | Typical Applications |
|---|---|
| Pipe Making & Tube Fabrication | Feedstock for ERW and LSAW mills producing structural and line pipes |
| Construction & Infrastructure | Structural beams, column base plates, container frames, bridge girders |
| Shipbuilding & Marine | Hull plates, deck panels, bulkhead stiffeners |
| Industrial Equipment | Pressure vessel shells, boiler end caps, storage tank walls |
| Transport & Logistics | Truck chassis cross-members, trailer floor supports |
| General Fabrication | Machine bases, bracket assemblies, platform grating supports |
Material Traceability Gaps That Trigger Customs Holds
Every coil leaving our mill carries a heat number tied to its ladle analysis — no third-party blending.
Buyers sourcing Hot Rolled Carbon Steel Coil S235JR S355JR supplier stock from trading companies often discover, upon SGS re-inspection at destination, that the material certificate does not match the physical coils. Heat numbers are missing or duplicated, and chemical composition falls outside the EN 10025-2 band for the declared grade. [NEED_CITE: EN 10204 inspection document types for steel products] The result is a container held at port for weeks while the buyer scrambles for replacement material — project timelines collapse, and crane idle costs accumulate. This is not a rare edge case; it is the direct consequence of fragmented procurement where the fabricator has no control over the slab source.
Matching Coil Grades to Structural and Fabrication Demands
When a project calls for S355JR, the structural engineer is specifying a minimum yield point that directly governs member sizing and connection design. Substituting a lower grade without recalculation compromises load capacity. Our Hot Rolled Carbon Steel Coil S235JR S355JR supplier range covers the full EN, ASTM, and GB equivalence spectrum under one procurement umbrella, so a single purchase order can feed both primary framing (S355JR) and secondary bracing (S235JR) without splitting shipments across multiple vendors. The vertically integrated mill-to-coil model means the chemistry sheet you receive was generated at the same facility that poured the heat — [NEED_CITE: steel grade equivalence between EN and ASTM standards].
Engineering Compliance and Surface Condition Selection
Structural steel fabricated from hot rolled coil must meet dimensional and surface requirements set by EN 1090-2 or AISC 360, depending on the destination market. The ±1% thickness tolerance on our coils ensures that shop drawings based on nominal dimensions remain valid through fabrication. For projects requiring further cold reduction, the oiled or dull finish options on our Hot Rolled Carbon Steel Coil S235JR S355JR supplier inventory prevent rust staining during storage while preserving a surface condition suitable for pickling and cold rolling. Third-party inspection by SGS, BV, or TÜV is accepted at any production stage, and all documentation — including WPS records and dimensional reports — is prepared to international audit standards. [NEED_CITE: EN 1090-2 execution class requirements for structural steel]
Steel Grade Systems and Hot Rolling Metallurgy
The S-series (EN 10025), Q-series (GB/T 700), and ASTM A36/A572 systems all classify carbon steel by yield strength, but their chemical boundaries differ. S235JR and Q235B occupy a similar yield tier, yet their carbon and manganese ranges are not identical — a distinction that matters when welding procedure qualification is involved. S355JR offers a higher yield point suitable for heavily loaded members, while SAE1006 serves as a low-carbon feedstock for cold forming. Hot rolling above the recrystallization temperature produces a mill scale surface that, when left as-is or converted to a dull finish, provides adequate short-term corrosion resistance for indoor structural use. For outdoor exposure, the coil serves as feedstock for downstream galvanizing or painting. Thickness tolerance of ±1% across the 2.0–25 mm range ensures that flat-rolled products meet the dimensional acceptance criteria of most international fabrication codes.
The Hidden Cost of Unverified Coil Procurement
Ordering Hot Rolled Carbon Steel Coil S235JR S355JR supplier material without verified mill test certificates creates compounding downstream risk. A coil that fails chemical composition verification at destination cannot be re-certified — it must be scrapped or downgraded, and the project faces either a full reorder cycle or an engineering reassessment of the installed material. [NEED_CITE: consequences of non-conforming steel in structural applications] Dimensional deviation beyond tolerance forces re-machining at the fabricator’s yard, adding labor hours and delaying erection schedules. Certification gaps also trigger customs holds in markets requiring EN 10204 3.1 or 3.2 documentation, turning a standard delivery into a multi-week logistical disruption.
Why Project Teams Source Through Our Integrated Mill
Our Hot Rolled Carbon Steel Coil S235JR S355JR supplier operation eliminates the distance between raw material production and finished coil dispatch. The own steel mill with 3 production lines means every heat is controlled from ironmaking to coiling — there is no third-party slab sourcing that could introduce chemistry drift. With 2,800+ raw material specifications in inventory, multi-grade orders for a single project can be consolidated into one shipment, reducing freight cost and documentation complexity. The in-house metallurgical laboratory generates mill test certificates that trace each coil to its ladle analysis, and the quality management system is ISO 9001 certified. For buyers requiring third-party validation, SGS and BV inspection protocols are integrated into the production schedule, not arranged as an afterthought. Professional ocean freight packing — plastic film, waterproof paper, and steel strip banding — protects the coil surface during transit, and heat numbers are stenciled on every bundle for site-level verification.
Documentation & Compliance
- Mill test certificate documenting S235JR and S355JR chemical composition and mechanical properties per EN 10025-2, with heat number traceability to ladle analysis
- CE marking documentation for structural steel products intended for EU construction markets, confirming conformity with EN 1090-1
- ISO 9001 quality management certificate covering the full hot rolling and coil inspection process
- SGS or BV third-party inspection report available at pre-shipment stage, verifying dimensional tolerance and surface condition
- Material traceability report linking each coil to its heat number, production date, and test specimen location
- Export customs documentation including packing list, bill of lading, and certificate of origin formatted for destination port requirements
Packaging, Loading & Delivery
- Hot rolled coils bundled with inner plastic film and outer waterproof paper, secured by minimum three steel strips to prevent telescoping during ocean transit
- Oiled or dull finish surface protected by interleaved paper separators to prevent friction marks and moisture trapping between coil wraps
- Container loading optimized for 2.0–12.5 mm thickness coils, with coil eyes oriented for forklift handling and weight distributed to meet road transport axle limits
- Heat number and steel grade stenciled on each coil’s outer wrap and on the bundle tag for unambiguous site identification
- FOB, CIF, and DDP shipping terms available, with door-to-door logistics coordination for project sites requiring Hot Rolled Carbon Steel Coil S235JR S355JR supplier delivery to inland yards
Starting Your Coil Procurement
Submit your project specifications — including steel grade, thickness, width, quantity, and destination port — to receive a detailed quotation with production timeline and mill test certificate sample. Our engineering team will review your requirements and confirm grade equivalence, surface finish suitability, and packing configuration before contract execution.
Request Your Hot Rolled Coil Quotation
Share your drawings or material schedule to receive pricing, MTC samples, and production lead time within 24 hours.
Tel: +86 531 8573 6315 | Mobile/WhatsApp/WeChat: +86 188 5315 7756 | Email: admin@xjystructure.com
Frequently Asked Questions
Q: What is the grade equivalence between S235JR, S355JR, Q235B, and ASTM A36?
A: S235JR and Q235B occupy a similar yield strength tier under EN 10025-2 and GB/T 700 respectively, while S355JR provides a higher yield point for heavily loaded structural members. ASTM A36 is broadly comparable to S235JR in yield terms but differs in chemical composition limits. Our Hot Rolled Carbon Steel Coil S235JR S355JR supplier team can provide a detailed equivalence table for your specific project specification.
Q: Can third-party inspection be arranged before shipment?
A: Yes. SGS, BV, and TÜV inspection protocols are integrated into our production schedule. Inspection can cover dimensional verification, surface condition assessment, and witness testing. The inspection report is issued alongside the mill test certificate as part of the standard documentation package.
Q: What surface finish options are available for hot rolled coil?
A: Our Hot Rolled Carbon Steel Coil S235JR S355JR supplier inventory is available in as-rolled (mill scale), oiled, and dull finish conditions. Oiled coils are suitable for short-term storage and downstream pickling, while dull finish provides improved surface appearance for visible fabrication components.
Q: What processing services are offered on the coil?
A: In addition to supply in coil form, we provide decoiling, cut-to-length, slitting, punching, bending, and welding services. This allows buyers to receive fabricated blanks or processed components directly, reducing secondary handling at the project site.
Q: How is material traceability maintained from mill to delivery?
A: Every coil is assigned a unique heat number at the steelmaking stage. This number appears on the mill test certificate, the coil wrap stencil, and the packing list. The full traceability chain — from ladle analysis to final inspection — is documented and available for audit at any stage.
Get Your Hot Rolled Carbon Steel Coil Quote Today
Send your material schedule with grade, dimensions, and quantity to receive a factory-direct quotation with full MTC documentation within 24 hours.
Tel: +86 531 8573 6315 | Mobile/WhatsApp/WeChat: +86 188 5315 7756 | Email: admin@xjystructure.com
