Strong Corrosion Resistance | Formable | Widely Used in Car Body & Interior Panels

Overview

Galvanized automotive steel is coated with zinc or zinc-alloy to improve corrosion resistance, forming the protective base for car exteriors and structural parts. With excellent formability, weldability, and surface quality, it’s widely applied in:

• Car roofs & hoods
• Inner & outer door panels
• Underbody parts
• Trunk lids
• Wheel housings

CJMsteelgroup supplies GI, GA, and ZAM automotive steel plates that meet global OEM standards.

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Company Introduction

CJMsteelgroup is one of China’s leading steel exporters, with 1,000,000+ tons of inventory and fast shipment capability. We supply zinc-coated automotive steels tailored to customer requirements, including cutting, slitting, and surface customization. Our clients span Asia, the Middle East, Africa, Europe, and the Americas.

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Product Range & Coating Types

Type	Description
GI (Galvanized Iron)	Pure zinc-coated steel (Z coating)
GA (Galvannealed Steel)	Zinc-iron alloy coating for improved paintability
ZAM	Zinc-Aluminum-Magnesium alloy coating for extreme corrosion resistance

Available Dimensions

Parameter	Range
Thickness	0.5 – 2.5 mm
Width	800 – 1600 mm
Coil Weight	5 – 20 tons
Zinc Coating	40–275 g/m²
Surface Finish	Regular Spangle, Zero Spangle, Oiled/Dry
Delivery Format	Coil, Sheet, Cut-to-Length

🔬 Chemical Composition (Typical Base Steel)

Grade	C	Mn	P	S	Si
DC51D+Z	≤0.10	≤0.50	≤0.10	≤0.045	≤0.50
HX340LAD+Z	≤0.12	≤1.50	≤0.10	≤0.045	≤0.50
CR340LA+Z	≤0.12	≤1.60	≤0.10	≤0.045	≤0.50

Mechanical Properties

Grade	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)
DC51D+Z	≥140	270–500	≥22
HX340LAD+Z	≥340	≥410	≥18
CR340LA+Z	≥340	≥440	≥18

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Automotive Applications & Grade Recommendations

Application	Recommended Grades
Car roof panels	DC51D+Z, DC53D+Z
Inner door panels	DC52D+Z
Outer door skins	GA coating (galvannealed)
Underbody parts	HX340LAD+Z, ZAM coated
Trunk lid	CR340LA+Z
Wheel housing	Z180–Z275 coatings

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🏭 Why Choose CJMsteelgroup?

• Over 15 Years of Automotive Steel Export Experience
• Annual Inventory Over 1 Million Tons
• Europe, South America, Middle East, India, and Global Markets
• Application-Based Product Cataloging
• Professional Slitting, Oiling, Precision Cutting Services

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📦 Packaging & Delivery

• Export-grade seaworthy packing: steel strip, waterproof paper, pallets
• Custom wrapping with edge protection
• FOB, CFR, CIF available from Tianjin, Qingdao, or Shanghai

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Contact CJM Today

Contact CJM now to get a quote for your galvanized steel needs. Whether for exposed panels or structural parts, we offer the perfect match of grade, coating, and surface.

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment