Carbon Steel Strip | Precision Slit Steel Strip (SPCC, Q235, SAE 1010, DC01)

Huaxia Steel — Professional Carbon Steel Strip Supplier
15+ years of experience | ISO 9001 & SGS Certified | Precision slitting | Multiple surface finishes | Worldwide shipping

What is Carbon Steel Strip?

Carbon steel strips are narrow, thin flat-rolled steel products typically produced by precision slitting from wider coils. They offer tight width and thickness tolerances, making them ideal for stamping, roll forming, welded tube production, and precision component manufacturing. Huaxia Steel supplies carbon steel strips in hot-rolled, cold-rolled, and galvanized finishes, conforming to ASTM A109/A679, JIS G3141, EN 10139, and GB/T 3524 standards, serving the automotive, construction, hardware, and appliance industries globally.

Available Grades & Standards

Chemical Composition & Mechanical Properties of Common Carbon Steel Strip Grades

Grade	Standard	C%	Mn%	Tensile (MPa)	Yield (MPa)	Application
Q195	GB/T 3524	≤0.12	0.25–0.50	315–430	—	Pipe making, forming
Q235B	GB/T 3524	0.12–0.20	0.30–0.67	375–500	≥235	Structural, general use
SAE 1008	ASTM A109	≤0.10	0.30–0.50	270–450	—	Drawing, stamping
SAE 1010	ASTM A109	0.08–0.13	0.30–0.60	300–450	—	General forming
SAE 1020	ASTM A109	0.18–0.23	0.30–0.60	380–550	—	Machining, stamping
SPCC	JIS G3141	≤0.15	≤0.60	≥270	—	Appliance, automotive
SPCD/SPCE	JIS G3141	≤0.10	—	≥270/≥270	—	Deep drawing
DC01	EN 10139	≤0.10	≤0.45	270–410	—	European standard CR
DC03	EN 10139	≤0.08	≤0.45	270–370	—	Deep drawing (EU)

Dimensions & Specifications

Carbon Steel Strip Size Range & Tolerances

Parameter	Hot Rolled Strip	Cold Rolled Strip
Thickness	1.0–4.0mm	0.1–3.0mm
Width	15–600mm	10–600mm
Width Tolerance	±0.5mm	±0.05–0.10mm
Thickness Tolerance	±0.05–0.15mm	±0.01–0.03mm
Coil Inner Diameter	508mm	508mm
Coil Outer Diameter	Up to 1250mm	Up to 1200mm
Coil Weight	0.5–5 tons	0.5–3 tons
Edge Condition	Mill edge / slit edge	Slit edge (deburred)

Manufacturing Process

Carbon steel strips are produced through precision slitting from wider coils:

Uncoiling: Master coils (up to 2000mm wide) are loaded onto a precision decoiler and fed into the slitting line.

Slitting: Rotary slitting knives cut the wide coil into multiple narrow strips simultaneously. Blade clearance and speed are precisely controlled to produce clean, burr-free edges. Slitting width tolerance is typically ±0.05mm for cold-rolled strips.

Recoiling: Slit strips are individually recoiled onto separate mandrels, with automatic tension control to ensure consistent coil density and prevent telescoping.

Edge Treatment (Optional): Strip edges can be deburred, rounded, or skin-passed to meet specific edge quality requirements for downstream processing.

Surface Finish & Treatment Options

Available surface finishes:
– Hot Rolled, Mill Finish: Dark oxide surface for pipe/tube making
– Hot Rolled, Pickled & Oiled: Clean surface for visible applications
– Cold Rolled, Bright: Smooth, scale-free surface for stamping and forming
– Cold Rolled, Skin-passed: Improved flatness and surface quality
– Galvanized (GI): Zinc-coated for corrosion resistance (40–120 g/m²)
– Electro-galvanized (EG): Uniform thin zinc coating for precision parts
– Phosphate Coated: Improved lubricity for deep drawing and stamping

Common Applications

• Welded pipe and tube manufacturing (round, square, rectangular tubes)
• Precision stamping: brackets, clips, terminals, contacts, and connectors
• Roll forming: ceiling grids, drywall studs, door frames, and window profiles
• Automotive: wiper blades, seat belt components, window regulators
• Hardware: hinges, latches, brackets, and furniture fittings
• Saw blade and knife blank production (spring steel grades)
• Binding straps, banding, and packaging strips
• Transformer core laminations (silicon steel grades)

Why Choose Huaxia Steel as Your Carbon Steel Strip Supplier?

Factory-Direct Pricing

Eliminate middlemen. Our direct mill partnerships ensure competitive pricing on every order, from small prototype quantities to full container loads.

Certified Quality

Every shipment includes full mill test certificates (MTC/EN 10204 3.1). ISO 9001:2015 certified. Third-party SGS inspection available on request.

Custom Processing

Cut-to-size, precision slitting, bending, welding, galvanizing, and surface treatment services. We deliver material ready for your production line.

Fast Global Logistics

Efficient shipping to North America, Europe, Middle East, Southeast Asia, and beyond. Standard lead time 7–15 days for stock items.

Frequently Asked Questions

What is the difference between strip and sheet?

Strip is a narrow-width product (typically 10–600mm wide) supplied in coil form, produced by slitting wider coils. Sheet is a wider product (typically 600–2000mm) supplied as flat cut pieces. Strip is preferred for continuous processing (roll forming, stamping, tube making), while sheet is preferred for discrete fabrication and panel applications.

What does ‘precision slit’ mean?

Precision slitting refers to the process of cutting wide coils into narrow strips using rotary slitting knives with tight tolerances. Precision slit strips typically have width tolerances of ±0.05mm (cold-rolled) or ±0.5mm (hot-rolled), with clean, burr-free edges suitable for direct downstream processing without additional edge trimming.

Can you slit to custom widths?

Yes. Huaxia Steel offers custom slitting services. We can slit coils to widths as narrow as 10mm with tolerance of ±0.05mm. Minimum order quantity for custom slit widths depends on the total tonnage and number of strands—contact us for details.

What is edge deburring?

Deburring is the process of removing sharp edges created during slitting. Techniques include shaving (removing a thin strip of metal), edge rolling (folding the edge over), and rotary deburring (using abrasive wheels). Deburred edges prevent injury during handling and improve performance in downstream tube welding and roll forming operations.