Premium Q235 Q345 Cold Rolled Mild Steel Coil for Sale

• Customization: Available
• Standard: ASTM, JIS, GB, AISI, DIN, BS
• Certification: ISO, RoHS
• Model NO.: DC04/SPCE/DC06
• Surface Treatment: for Carbon Steel: Skin Pass; for Stainless Steel:
• Technique: Cold Rolled
• Application: Auto Parts, Home Appliance Shell, Hardware Process
• Edge: Mill Edge / Slit Edge
• Stock: Stock
• Thickness: Specific Value(e.g. 0.5mm) or Range(e.g. 0.2-3.0mm
• Width: Specific Value(e.g. 1250mm) or Range(e.g. 600-1500
• Coil Inner Diameter: 1000-1800mm
• Coil Weight: 5-10 Ton (Large/Small Coil Available)
• Thickness Tolerance: ±0.01mm
• Width Tolerance: ±0.5mm
• Surface Condition: Oiled / Non-Oiled
• Plastic Strain Ratio (R90): ≥2.0
• Strain Hardening Exponent (N90): ≥0.20
• Processing Service: Slitting, Cutting to Length, Custom Size
• Packing Detail: Anti-Rust Paper + Steel Coil Protector + Wooden P
• Chemical Composition: C≤0.06%, Mn≤0.35%, P≤0.025%, S≤0.025%
• Yield Strength: 120~180MPa
• Tensile Strength: 270~330MPa
• Elongation: ≥40%
• Transport Package: Standard Transportation, Standard Sea Package
• Trademark: KANGHONG
• Origin: Shandong, China
• HS Code: 7209189000
• Production Capacity: 500000 Ton

Product Description

Product Description

Hot Rolled / Cold Rolled Carbon Steel Coil – ASTM, JIS, GB Standard for Construction & Manufacturing

We are a leading supplier and exporter of Carbon Steel Coils in China, specializing in both Hot Rolled Steel Coils (HRC) and Cold Rolled Steel Coils (CRC) . Our carbon steel coils are manufactured from high-quality steel slabs using advanced rolling and processing technologies, ensuring consistent thickness, excellent surface finish, and reliable mechanical properties.

Our products strictly comply with international standards including ASTM A36, ASTM A1011, JIS G3101, JIS G3141, GB/T 700, and GB/T 912. With a wide range of available thicknesses, widths, and grades, our carbon steel coils are ideal for a variety of downstream applications such as pipe manufacturing, structural fabrication, automotive components, construction materials, and general engineering.

Specification

Description
Product	Carbon steel Coil
Product categories	Carbon structural: Grade:Q235B/C/D/E Q345B/C/D/E Q460C/D/E
	Alloy steel plate: Grade:40Cr 50Mn 65Mn 15CrMo 35CrMo 42CrMo
	Pressure vessel steel: Grade: Q245R Q345R Q370
Width	500mm-3000mm,or as Your Request ( regular width 1000mm, 1250mm, 1500mm )
Thickness	2.0mm-25mm
Tolerance	Thickness: +/-0.02mm, Width:+/-2mm
Standard	ASTM,DIN,JIS,BS,GB/T
Surface	Iron gray (low carbon plate), brown (special alloy plate, the high carbon plate), partial ochre (weather resistance), with temperature oxidation pattern, than manufacture rough surface
Material	Q195,Q215,Q235,Q345,SS490,SM400,SM490,SPHC,SPHD,SPHE,SPHF,SEA1002,SEA1006,SEA1008,SEA1010,65Mn,SPHT1,SPHT2,SPH3,SPH4
MOQ	5Ton, sample acceptable
Processing service	Bending, WELDING, Decoiling, Cutting, PUNCHING
Application	Widely used in ship, automobile, Bridges, buildings, machinery, pressure vessels and other manufacturing industries
Package	Tied up with steel strips
Thick Chemical	C≤0.25,Si≤0.40,P≤0.040,S≤0.050,Rm:400-550Mpa

Standard	Grade	C max	Mn max	Si max	P max	S max	Yield strength max	Tensile strength	Elongation %
JISG3101	SS400	0.22	1.40	0.50	0.035	0.035	245	400-500	26
ASTM	A36	0.25	0.80-1.20	0.40	0.045	0.050	250	400-520	26
ASTM	A283	0.14-0.24	0.90	0.40	0.035	0.040	210	310-510	22-27
GB700	Q235A	0.14-0.22	0.30-0.65	0.30	0.045	0.050	235	370-460	21-26
GB700	Q235B	0.22	0.30-0.65	0.30	0.045	0.045	235	375-460	21-26
GB700	Q235C	0.18	0.30-0.80	0.30	0.040	0.040	235	375-460	21-26
GB700	Q235D	0.17	0.35-0.80	0.35	0.040	0.035	235	375-460	21-26
EN10025	S235JR	0.17	0.65	0.35	0.030	0.030	225	360-510	18

Quality Assurance & Mill Certificates

Quality Assurance & Mill Certificates

1.Strict Inspection Process: Each production batch undergoes rigorous testing for chemical composition (Spectrometer Analysis), mechanical properties (Tensile & Hardness Test), and dimensional accuracy (Micrometer & Caliper Check).
2.Documentation: All shipments are accompanied by Mill Test Certificates (MTC) in compliance with EN 10204 3.1 or 3.2. We can also provide Certificate of Origin (CO) and other required export documents.
3.Third-Party Testing: We fully support and cooperate with pre-shipment inspections conducted by recognized agencies such as SGS, Bureau Veritas (BV), and Intertek to ensure the product meets your specifications before loading.

Company Profile

Packaging & Shipping

Packaging Component	Details
Inner Protection	Anti-rust oil coating + Waterproof kraft paper wrapping
Outer Protection	Thick plastic film + Circumferential steel strapping (Minimum 4 straps)
Edge Protection	Metal edge guards (corner protectors) to prevent strapping damage
Palletization	Standard export fumigated wooden pallets or iron pallets (Optional for smaller coils)
Loading Method	Eye-to-sky or Eye-to-wall container loading as per coil weight and size
Loading Port	Tianjin Port / Qingdao Port / Shanghai Port / Ningbo Port
Shipping Terms	FOB, CIF, CFR, EXW

Applications & Typical Uses

Applications & Typical Uses

Pipe & Tube Manufacturing: Carbon steel coils are the primary raw material for producing ERW pipes, galvanized pipes, and hollow sections for construction and fluid transportation.
Construction & Structural Engineering: Used in the fabrication of steel beams, columns, purlins, decking sheets, and prefabricated building components.
Automotive Industry: Cold rolled coils are essential for body panels, chassis parts, brackets, and interior structural components.
General Manufacturing: Base material for metal furniture, shelving systems, drums, barrels, stamping parts, and hardware tools.
Machinery & Equipment: Used in the production of agricultural machinery, conveyor systems, and industrial storage tanks.

FAQ