SPHC steel (Steel, Plate, Hot, Commercial) is a commercial quality hot-rolled carbon steel with low carbon content (typically ≤0.08%). It is the most widely used hot-rolled grade in the Chinese market, offering excellent formability, weldability, and surface finish. It is typically supplied in coils or cut sheets and is widely used as a base material for cold rolling (such as SPCC), as well as for manufacturing pipes, general stamping parts, and structural components. It is equivalent to EN 10025 S235JR / DD11 and ASTM A1011 CS Type B.
Chemical Composition
Typical chemical composition (% by mass) per JIS G3131.
| Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) |
|---|---|---|---|---|---|
| SPHC | ≤0.08 | ≤0.05 | ≤0.50 | ≤0.030 | ≤0.035 |
Note: SPHC is a commercial quality steel. Its low carbon content makes it highly suitable for cold forming, bending, and welding. It is often the base material for SPCC cold-rolled coils.
Mechanical Properties
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Bending Test |
|---|---|---|---|---|
| SPHC | ≥205 | ≥270 | ≥27 | 180° (1.5t thickness) |
Available Sizes & Delivery
| Thickness | 1.2–25.4 mm |
| Width | 600–2000 mm |
| Coil Weight | 3–25 tons per coil |
| Forms Available | Hot rolled coil (HRC), cut-to-length sheet |
| Standard | JIS G3131 / GB/T 3274 |
| Mill Test Certificate | EN 10204 3.1 with every shipment |
| MOQ | 5 Tons |
| Delivery Time | Within 7-10 days (≤1000 tons) |
Why Order from Zhongtang Steel?
- Excellent Formability — Ideal for cold rolling, bending, and stamping
- High Surface Quality — Suitable for pickling and galvanizing
- EN 10204 3.1 MTC supplied with every shipment
- ISO 9001 certified manufacturer since 1998
- Mill-direct pricing — no trading company markup
Applications
- Base material for cold-rolled coils (SPCC, DC01)
- Welded steel pipes and tubes (ERW, spiral pipes)
- General stamping parts and metal furniture
- Automotive structural brackets and chassis parts
- Galvanized and color-coated steel base coils
- Construction scaffolding, formwork, and profiles
