Hot Rolled Galvanized Carbon Steel Coils Best Price
1.Product Introduction
Our Hot Rolled Galvanized Carbon Steel Coils combine the strength of hot-rolled carbon steel with the corrosion resistance of zinc coating, making them a cost-effective and durable solution for diverse industrial applications. Crafted from high-quality carbon steel (conforming to standards like ASTM A36, S235JR, or Q235), the coils undergo a hot-dip galvanizing process—where the steel surface is fully immersed in molten zinc—forming a tight, adherent zinc layer (typically 60-275 g/m², customizable by requirement).
2.Why Choose Us?
✅ High-Strength Materials: Meet various load-bearing requirements.
✅ Customizable Solutions: Adjustable dimensions, materials, and surface treatments.
✅ Fast Delivery: Ample stock available, supporting small trial orders.
3.Simplified Zinc Choice Comparison Table
|
Zinc Coating Type |
Zinc Content/Weight |
|
Hot-Dip Galvanizing (HDG) |
60–275 g/m² (per side); 85–390 μm |
|
Electro-Galvanizing (EG) |
5–50 g/m² (per side); 7–70 μm |
|
Zinc-Nickel Alloy |
8–20 g/m² (total); 10–15% Ni |
|
Zinc-Rich Paint (ZRP) |
60–90% Zn in film; 50–200 μm |
|
Galvalume (Zn-Al Alloy) |
55% Al, 43.4% Zn; 100–200 g/m² |
4.FAQ
Q1: Can the zinc coating thickness be adjusted, and how does it impact performance?
A: Yes—we offer coating thickness from 60g/m² (light duty) to 275g/m² (heavy duty). Thicker coatings boost corrosion resistance (ideal for outdoor/coastal use), while thinner ones suit indoor
Q2: How long is the lead time for an order, and what’s the minimum order quantity (MOQ)?
A: Standard coils (common specs) have a 7-10 day lead time; custom specs take 12-15 days. MOQ is 1 coil (1-3 tons) for trial orders, with flexible terms for long-term partners.
Q3: Are the coils suitable for welding and painting?
A: Yes. The galvanized surface is weldable (use zinc-compatible welding rods to avoid porosity) and paintable (light sanding or primer ensures good paint adhesion) for further customization.
TYPSA allowed weights, diameters, widths and ovality
|
TYPSA |
||
|
Aspect |
HOT SHEET AND COLD SHEET |
|
|
Maximum |
Minimum |
|
|
Weight (kg) |
12,000 |
8,000 |
|
Width (mm) |
1219 |
1000 |
|
External diameter (mm) |
Do not exceed the specified weight |
No specification |
|
Internal diameter (mm) |
780 |
507 |
|
Ovality (mm) |
No specification |
No specification |
TUBAC permitted weights, diameters, widths and ovality (information for supplier use)
|
TUBAC |
||
|
Aspect |
SLITTER # 3 (LAMINA CALIENTE) |
|
|
Maximum |
Minimum |
|
|
Thickness |
8 |
0.9 |
|
Weight (Kg) |
22,000 |
11,000 |
|
Widht (mm) |
1500 |
914 |
|
External diameter (mm) |
2,200 |
No specification |
|
Internal diameter (mm) |
762 |
520 |
|
Ovality (mm) |
25 |
25 |
TUBAC permitted weights, diameters, widths and ovality(information for internal use)
|
Aspect |
BONAK |
|
|
|
Maximum |
Minimum |
|
Thickness |
8 |
0.7 |
|
Weight (Kg) |
22,000 |
11,000 |
|
Width (mm) |
1800 |
500 |
|
External diameter (mm) |
2200 |
1500 |
|
Internal diameter (mm) |
860 |
508 |
|
Ovality (mm) |
25 |
25 |
Chemical composition and mechanical properties of hot rolled sheet Grade D (Grade A)
|
Elemento (%) |
JIS G3132, grado SPHT-1 |
ASTM A1011 - CS TipoA |
|
C (máx) |
0.1 |
0.1 |
|
Mn (máx) |
0.5 |
0.6 |
|
P (máx) |
0.04 |
0.03 |
|
S (máx) |
0.04 |
0.035 |
|
Cu (máx) |
- |
0.2 |
|
Si (máx) |
** 0.03 |
** 0.03 |
|
Tensile strength (min) MPa |
270 min |
- |
|
Yield Strength (min) MPa |
- |
205 - 340 |
|
Elongation (%) |
37 |
25 min |
Chemical composition and mechanical properties of hot rolled sheet Grade B
|
Elemento (%) |
JIS G3101, grado SS400 |
ASTMA1011 - grado 36 |
|
C (máx) |
- |
0.25 |
|
Mn (máx) |
- |
1.35 |
|
P (máx) |
0.05 |
0.035 |
|
S (máx) |
0.05 |
0.04 |
|
Cu (máx) |
- |
0.2 |
|
Si (máx) |
** 0.03 |
** 0.03 |
|
Tensile strength (min) MPa |
400 - 510 |
400 - 550 |
|
Yield strength (min) MPa |
245 |
250 |
|
Elongation (%) |
21 |
21 |
Chemical composition and mechanical properties of Grade C hot rolled sheet
|
Elemento (%) |
ASTMA572, grado 50 |
ASTMA1011, grado 50 |
|
C (máx) |
0.23 |
0.25 |
|
Mn (máx) |
1.35 |
1.35 |
|
P (máx) |
0.03 |
0.035 |
|
S (máx) |
0.03 |
0.04 |
|
Cu (máx) |
- |
0.2 |
|
Si (máx) |
** 0.03 |
** 0.03 |
|
Resistencia a la tensión (min) MPa |
450 |
450 |
|
Límite de fluencia (min) MPa |
345 |
340 |
|
Elongación (%) |
21 |
17 |
Katherine A. Fogg
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