Galvanized Steel Sheet Coil SGHC SGCC 0.2mm-6mm Can be Cut
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- Customizable length, cutting length
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- Overview
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Product Induction
Both SGHC and SGCC fall under the Japanese Industrial Standard JIS G3302 for hot-dip galvanized steel coils. The difference lies in the substrate: SGHC uses hot-rolled steel, while SGCC is cold-rolled steel.
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Specification
| Product Name | Galvanized Steel Sheet Coil SGHC SGCC 0.2mm-6mm Can be Cut |
| Grade | SGHC(0.5–3.0 mm thickness)and SGCC(0.12–3.5 mm thickness) |
| Shape | Coil,Sheet,Strip |
| Steel Grade Stocking |
SGHC、SGCC、BZCL,DX51D+Z、DC51D+ZDX52D+Z、DC52D+Z、SGCD1,320、 SS340、SGH340-XLD、S350GD+Z、G350D+Z,CS C、SS 50、SS 50-1、SS Gr50、 GR50,S 55、SS 60、SGC490、SGH490、SS380、SS410、SS480、SS 70、 HR300LA、S420GD+Z、G420D+Z,SGC540、SGC570、SGH540、S500GD+Z、 G500GD+Z and other grades. |
| Galvanized Coating | 30–275 g/m² (single-sided) |
| Galvanized Steel Coil Width | 20mm-2000mm |
| Galvanized Steel Coil Thickness | 0.2mm-6mm |
| Processing | Laser Cutting,Bending,Welding,Punching,Drilling,CNC Machining.Customize according to the drawings |
| Certificate | ISO9001,RoHS |
| Delivery Time | Common size on stock,3days. |
| Sample | Available |
| Place of Origin | Tianjin,China |
SGHC SGCC Grade Chemical Composition and Technical Property is as below：
| Grade | C max | Mn max | P max | S max |
| SGHC | 0.15 | 0.80 | 0.05 | 0.05 |
| SGCC | 0.15 | 0.80 | 0.05 | 0.05 |
The maximum composition limits are consistent,trace amounts of Nb and Ti may be added during actual production to refine the grain structure.
| Grade | tensile strength（MPa） | yield strength（MPa） | Elongation% |
| SGHC | ≥270 MPa | ≥205 MPa | ≥20 % |
| SGCC | ≥270 MPa | ≥205 MPa | ≥22 % |
Comparison of SGCC and SGHC
1.SGHC uses hot-rolled steel as its substrate and has a lower thickness limit, while SGCC uses cold-rolled steel and can be produced in thinner gauges.
2.SGHC is more suitable for high-strength, thin-walled applications in outdoor weathering environments.
3.SGCC is more suitable for deep-drawing applications requiring aesthetic appeal.
4.At the same zinc coating thickness, SGHC generally has a lower price.
Application Areas of SGHC
1.Photovoltaic Mounting Systems, Utility Tunnel Frames, Outdoor Communication Towers: Utilizing yield strength 300 MPa+ for reduced thickness and weight.
2.Building Structures: Achieves 10–15% steel savings.
3.Agricultural and livestock facilities: Greenhouse frames, livestock pens. Coating Z180–275 g/m² ensures 15–25 year service life.
4.Cable trays, utility tunnels, prefabricated supports: Requires extensive on-site welding. Hot-rolled substrate exhibits minimal post-weld deformation.
Application Areas of SGCC
1.Appliance housings: such as refrigerators, washing machines, microwaves, etc. Thickness 0.4–0.8 mm, zinc-free surface, fingerprint-resistant.
2.Automotive inner panels: Capable of 180° bend forming and 30% deep draw thinning.
3.Computer cases, set-top boxes, lighting reflectors: As thin as 0.12 mm with minimal stamping burrs.
4.Ventilation ducts, ceiling grid systems, cable tray covers: Utilizing excellent coating adhesion and weldability.
Four Key Processes from Steel Coil to Steel Plate
1. Uncoiling
2. Leveling
3. Cutting (Fixed Length/Slitting)
4. Surface Treatment (Pickling, Annealing, Galvanizing, etc.)
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FAQ
Q: What do the letters in the grade designation mean?
A: S = Steel, G = Galvanized; H = Hot rolled, C = Cold-rolled; C = Common.
Q: Are the standard numbers the same?
A: Yes, both are JIS G3302-2019. But the substrate sources differ: SGHC uses hot-rolled substrate,SGCC uses cold-rolled substrate.
Q: What is the zinc coating weight range for this galvanized coil?
A: For the same standard, 30–275 g/m² (single side). Common grades include Z60, Z80, Z120, Z180, and Z275.
Q: Why does SGHC have higher hardness?
A: Hot-rolled substrates feature coarser grains and higher rolling temperatures. Their subsequent laminar cooling rate is slower than that of cold-rolled recrystallization annealing, resulting in hardness ranging from HRB 50 to 70. SGCC undergoes recrystallization annealing, yielding hardness between HRB 45 and 55.
Q: Can subsequent color coating be applied?
A: Both grades can be directly color coated. Only alkaline cleaning and degreasing are required before priming; no additional acid pickling is needed. Common coatings include PE, SMP, HDP, and PVDF, with film thicknesses ranging from 15 to 35 µm.
Q: How can I get your quotation as soon as possible?
A:Please contact:
Email:[email protected]
Wechat/whatsapp/mobile: + 86 13512028034
