Overview
The High-Performance SPCC/SGCC/AISI/ASTM/JIS Z30-80-120-275 DX51D GI Galvanized Steel Sheet & Coil is a versatile metal product designed for precision fabrication across industries. Available in various grades (SPCC: cold-rolled carbon steel, SGCC: galvanized steel with aluminum-zinc coating) and compliant with international standards (AISI, ASTM, JIS), these sheets offer a balance of formability, strength, and corrosion resistance.
The DX51D designation indicates a general-purpose galvanized steel with a spangle or spangle-free surface, while coating weights (Z30 to Z275, meaning 30-275 g/m² of zinc) allow customization for different environmental demands. Supplied in flat sheets or coils, they are ideal for applications requiring cutting, bending, welding, and stamping.
Features
Multi-Grade Compliance: Meets global standards for mechanical properties, ensuring consistency in quality for international projects.
Superior Corrosion Protection: The galvanized layer (zinc or aluminum-zinc alloy) provides sacrificial protection, extending the service life even in coastal or industrial zones.
Excellent Formability: Cold-rolled substrates (SPCC) offer high ductility for deep drawing, while SGCC maintains formability with enhanced corrosion resistance.
Precision Thickness Control: Available in thicknesses from 0.12mm to 3.0mm, with tight tolerance control for critical fabrication processes.
Surface Finish Options: Smooth (spangle-free) or spangled surfaces, suitable for painting, powder coating, or direct use in visible applications.
Application
Automotive Industry: Used for car body panels, chassis components, and exhaust systems, requiring high strength and crash resistance.
Construction: Manufactures steel frames, door/window profiles, and cladding panels, combining durability with easy installation.
Appliance Manufacturing: Forms parts for refrigerators, washing machines, and air conditioners, where surface quality and corrosion resistance are paramount.
General Fabrication: Ideal for metal furniture, storage tanks, and agricultural equipment, supporting a wide range of stamping and welding operations.
FAQ
Q: What's the difference between SPCC and SGCC?
A: SPCC is uncoated cold-rolled steel for general fabrication, while SGCC has a galvanized aluminum-zinc coating for superior corrosion resistance.
Q: Can these sheets be welded?
A: Yes, both SPCC and SGCC are weldable, but proper pre-welding surface cleaning is recommended to remove zinc coating from the weld area.
Q: How to choose the right coating weight?
A: Select based on environmental exposure: Z30-Z80 for indoor/dry environments, Z120-Z275 for outdoor/high-humidity or coastal areas.
Q: Are they available in custom lengths/widths?
A: Yes, coils can be slit to custom widths, and sheets can be cut to specific lengths to minimize material waste.
| product name | Galvanized steel sheet/plate |
| Steel Grade | Q195/Q235/Q345SGCC/SGCH/SGC340/SGC400/SGC440/SGC490/SGC570
SGHC/SGH340/SGH400/SGH440/SGH490/SGH540
DX51D/DX52D/DX53D/DX54DS220GD/S250GD/S280GD/S320GD/S350GD/S400GD/S500GD/S550GD |
| Standard | AISI, ASTM, BS, DIN, GB, JIS |
| zinc coating | 30-275gsm or as your requirement |
| Surface treatment | Chromated and oiled, and anti-finger |
| Thickness : | 0.2mm-50mm or as your requirement |
| Width： | 100-2000mm or as your requirement |
| Length: | 2000-12000mm or as customer's request |
| Technology: | Hot Rolled, Cold Rolled |
| Spangle | Big spangle, normal spangle, small spangle, non-spangle |
| features | beautiful surface, corrosion resistant, good welding performance, certain stamping properties, durable |
| Pament Term: | 1. over $10,000 - 30%T/T deposit in advance & 70% the balance before shipment2. under $10,000 - 100%T/T in advance |
| Trade Term: | EXW, FOB, CFR, CIF |
| Application | anti - corrosion roofing panel/roofing pile/Home appliance shell/chimney/kitchenware/ Anti-Corrosion resistant parts of
cars/Refrigerating equipment for food/ Storage, transportation and packaging of products |
| Delivery time | 3-15 days subject to the clients' requirement and quantity |
| Package | clients' requirement and Standard export sea-worthy packing |
 |  |
Package | covered with a layer of plastic film and cardboard,packed on the wooden pallets/ iron packing,bound with iron belt,loaded in the containers. |
Tube | Paper or Iron |
Coil ID | 508mm or 610mm |
Coil Weight | As usual 3-5tons; It could be as your requirements |
Logo | As usual, one logo per meter. Its color and design could be as your requirements. |
Shipments | 20’ container/ 40’ container/ by bulk |
