Basic Information
Standard
ASTM, JIS, GB, AISI, DIN, BS
Surface Treatment
Galvanized
Feature
Durable, Rust and Corrosion Resistance
Product Description
G550 Az150 az70 za55 aluzinc coil strip Zincalume Galvalume Steel Coil
| Specification |
Details |
| Thickness | 0.12 ~ 6.0 mm |
| Width | 600-1500 mm |
| Zinc Coating | 30 ~ 275 G/M2 |
| Coil ID | 508 / 610 MM |
| Coil Weight | 3-5 Tons |
| Standard | ASTM-A653; JIS G3302; EN10147; EN10326 etc. |
| Hardness | Soft hard (HRB60), medium hard (HRB60-85), full hard (HRB85-95) |
| Surface Structure | Regular spangle, Minimum spangle, Zero spangle, Big spangle |
| Surface Treatment | Chromated/Non-Chromated, Oiled/Non-oiled, Skin pass |
Detailed Photos
Different Surface Options: Small, Large, Zero Spangle
Galvalume Steel Coil
The surface of the galvanized steel sheet presents a unique smooth, flat and gorgeous star flower, and the base color is silver-white. The special coating structure makes it have excellent corrosion resistance. The normal service life of the aluminum-zinc plate can reach 25 years. It has good heat resistance and can be used in high temperature environments up to 315°C. The coating composition is 55% aluminum, 43.4% zinc, and 1.6% silicon by weight.
Product Parameters
Technical Standard Content
| Steel Grade |
DX51D+AZ |
| Spangle Type |
Minimized Spangle (M) |
| Chemical Treatment |
Chemically Passivated (C) |
| Oil Treatment |
Not Oiled |
| Zinc Coating Range |
Z30 -- 275 |
Chemical Composition (% by mass max)
| Steel Grade |
C |
Si |
Mn |
P |
S |
Ti |
| DX51D |
0.18 |
0.5 |
1.2 |
0.12 |
0.045 |
0.3 |
Quality Control & Certifications
PRE-SALE SERVICE:
1. ISO Verified Outstanding Manufacturer
2. Third-party inspections: SGS, BV, CE, COC, AI, etc.
Production Flow
1. Uncoiler → 2. Welder → 3. Entry Looper → 4. Pre-treatment → 5. Annealing Furnace → 6. Zinc Pot → 7. Cooling Tower → 8. Water Quench Tank → 9. Skin Pass → 10. Tension Leveler → 11. Passivation Coater → 12. Exit Looper → 13. Recoiler
Frequently Asked Questions
Q1: What is the main advantage of Galvalume over Galvanized steel?
A1: Galvalume steel (Al-Zn coating) offers significantly higher corrosion resistance, often lasting 2-4 times longer than standard galvanized steel in similar environments.
Q2: Can Galvalume steel be used in high-temperature environments?
A2: Yes, it has excellent heat resistance and can withstand temperatures up to 315°C without discoloration or oxidation.
Q3: What spangle types are available?
A3: We provide Regular, Minimum, Zero, and Big spangles to meet different aesthetic and application requirements.
Q4: What is the typical thickness range for your coils?
A4: Our thickness range spans from 0.12mm to 6.0mm, catering to both lightweight and heavy-duty industrial needs.
Q5: Is third-party inspection supported before shipping?
A5: Absolutely. We support inspections from SGS, BV, CE, and other international agencies to ensure quality standards.
Q6: What are the standard delivery times for large orders?
A6: Production typically takes 15-30 working days depending on the specifications and quantity required.