Hot Dipped Galvanized Steel Coil
Structural steel plate hot dip galvanized S280GD+Z,S280GD,S280GD+ZF are rolled according to steel standard EN 10147.Sealed treatment for galvanized steel plate and coil S280GD+Z,S280GD,S280GD+ZF shall be chosed after rolled finished,application of a transparent organic film coating of mass about 1g/m2.This treatment for zinc coated steel sheet S280GD+Z,S280GD,S280GD+ZF offers additional corrosion protection,especially the protection against fingerprints.It may improve the sliding characteristics during forming operations and can be used as a priming coat for subsequent varnishing.
The end users of S280GD+Z,S280GD,S280GD+ZF also can choose the treatment as Phosphated,this treatment improves the adherence and protective effect of a coating applied by processor.
S280GD+ Z, S280GD+ZF Chemical composition:
Grade |
Chemical composition % | |||||
| C max |
Si max |
Mn max |
P max |
S max |
Alt min |
|
| S280GD+Z, S280GD+ZF | 0.2 | --- | 0.8 | 0.035 | 0.035 | 0.015 |
S280GD+ Z, S280GD+ZF Mechanical Property:
STEEL GRADE |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation% min (Lo=80mm b=20mm) |
The coating adhesion (The heart bending diameter ) |
|
| min | min | <0.7mm | >0.7mm | a=thickness | |
| S280GD+Z, S280GD+ZF | 360 | 280 | 16 | 18 | 2a |
Specifications Table
| Commodity | S280GD Galvanized Steel Coils |
| Standard | JISG3302 /EN10346/ASTMA653 |
| Thickness | 0.4-3.0mm |
| Width | 600-1250mm |
| Zinc Coating | Z30-275g/M2 |
| Coil ID | 508/ 610mm |
| Coil Weight | Within 8MT |
| Min Order | 5 Tons Per Size |
| Spangle | Regular , Zero Spangle |
| Surface | Chromated,Skin-Passed,Non Skinpassed |
| Other Grade | S250GD+Z S280GD+Z S300GD+Z S320GD+Z S350GD+Z S420GD+Z S550GD+Z |
We are the leading galvanized steel strip manufacturer and distributor in China which have been engaging in the field produced for 20 years with 20 years export experience.Our main products cover galvanized steel strip, galvanized steel coil, galvanized steel sheet, galvanized corrugated sheet,etc.
For galvanized steel, we have more than 10 production lines, thickness from 0.11-4mm. We can produce the zero spangle/Minimum spangle/ regular spangle/ large spangle. We can also offer the service of cutting and punching. We are very capable to custom make for you.
- Available Steel Grade
|
Standard |
Grade |
C |
Si |
Mn |
P |
S |
Ti |
|
Forcold Forming Chinese Standard |
DX51D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
DX52D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX53D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX54D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX56D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
DX57D+Z |
0.12 |
0.50 |
0.60 |
0.100 |
0.045 |
0.30 |
|
|
Forcold Forming Japanese Standard |
SGCC |
0.15 |
0.50 |
0.80 |
0.050 |
0.030 |
0.025 |
|
SGCD1 |
0.12 |
0.50 |
0.60 |
0.040 |
0.030 |
0.025 |
|
|
SGCD3 |
0.08 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
SGCD4 |
0.06 |
0.50 |
0.45 |
0.030 |
0.030 |
0.025 |
|
|
For Structure Japanese Standard |
SGC340 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.025 |
|
SGC400 |
0.25 |
0.50 |
1.70 |
0.200 |
0.035 |
0.150 |
|
|
SGC490 |
0.30 |
0.50 |
2.00 |
0.200 |
0.035 |
0.025 |
|
|
SGC510 |
0.30 |
0.50 |
2.50 |
0.200 |
0.035 |
0.025 |
|
|
For Structure AISI Standard |
S220GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
S250GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S280GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S320GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.025 |
|
|
S350GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
|
|
S550GD+Z |
0.20 |
0.60 |
0.70 |
0.100 |
0.045 |
0.150 |
- Mechanical Properties
|
Grade |
Yield Strength MPa≥ |
Tensile Strength MPa≥ |
Elongation A%≥ |
|
DX51D Z/ZM/AZ/AM |
240-380 |
270-500 |
22 |
|
DX52D Z/ZM/AZ/AM |
140-300 |
270-420 |
26 |
|
DX53D Z/ZM/AZ/AM |
140-260 |
270-380 |
30 |
|
DX54D Z/ZM/AZ/AM |
120-220 |
260-350 |
36 |
|
S220GD Z/ZM/AM |
220 |
300 |
20 |
|
S250GD Z/ZM/AZ/AM |
250 |
330 |
19 |
|
S280GD Z/ZM/AM |
280 |
360 |
18 |
|
S300GD A/AM |
300 |
380 |
18 |
|
S320GD Z/ZM/AM |
320 |
390 |
17 |
|
S350GD Z/ZM/AZ/AM |
350 |
420 |
16 |
|
S450GD A/AM |
450 |
480 |
15 |
|
S550GD Z/ZM/AZ/AM |
550 |
550 |
- |
FAQ：
What are common applications of S280GD?
Applications include roofing, wall cladding, structural frames, automotive parts, appliances, and HVAC systems.
Is S280GD easy to form and fabricate?
Yes - it has good bendability and formability for cold forming and roll forming processes.
Can S280GD be welded?
Yes - it provides good weldability with proper techniques and care for the coating.
How should S280GD be stored to maintain quality?
Store in a dry, ventilated place away from moisture to preserve the coating and prevent rust. (Based on standard best practices)
What are the equivalent grades in other standards?
Similar grades include ASTM A653/A653M structural grades and others by region/market.
Can the surface finish be pre-painted?
Yes - pre-painted finishes like PE, PVDF, SMP are options for enhanced aesthetics and protection.