The process flow of galvanized sheet is as follows:
1. Firstly, the cold-rolled steel plate is degreased by alkali
washing and water washing, and then it is annealed in the
horizontal (vertical) heating furnace with radiant tube heating
after drying, and a certain amount of hydrogen is introduced into
the furnace to create a reduction atmosphere in the furnace.
2. The steel strip heated to a certain temperature is immersed in
zinc solution for hot galvanizing under certain conditions.
3. To control the size of the flower zinc, use the small liquid
zinc method to control the diffusion of zinc in the product.
4. After hot-dip galvanizing and cooling, the surface is smoothed,
and the surface is passivated or directly produced into color
coated coil plate according to the use.
Advantages of galvanized sheet: 1. Low processing cost 2. Durable
3. Good reliability 4. Toughness of coating 5. Comprehensive
protection 6. Saving time and labor 8. Simple and convenient
inspection
Standard | AISI, ASTM, DIN, GB, JIS |
Grade | SGCC, DX51D, DX53D, DX54D, SPHC, Q195 etc |
Thickness | 0.2-3.0mm |
Width | 750-1500 mm (regular width1000mm,1250mm,1500mm) |
Inner Diameter | 508/610mm |
Zinc Coating | 30-500g/m2; |
Coil weight | 3-8 Tons, or customized |
Elogation | 15%-45% |
Tensile strength | 200-550 n/mm2 |
Tolerance | ±5% |
Type | Cold rolled steel sheet |
Processing Service | Bending, Welding, Decoiling, Cutting, Punching,etc. |
Surface Treatment | Passivation or Chromated, Skin Pass,Oil or Unoiled,or Antifinger
print |
SPECIFICATIONS FOR STEEL COILS |
INTRODUCTION
| Product | steel coil |
Standard | ASTM,BS,GB,JIS,etc |
Grade | SS400, ST37-2, A36, S235JRG1, Q235, Q345 etc |
SPECIFICATIONS
| | |
1)Type: 2#-20#
2)Size: 20mm-200mm
3)Thickness: 2.0mm-24mm | 1)Type: 2.5/1.6-20/12.5
2)Long Side: 50-200mm
3)Thickness: 4.0-18mm |
Usage | Widely used in various building structure and engineering structure |
Shipping
| Technique | Hot Rolled |
Delivery Time | 10~20days |
Shipping | 1)Shipping by containers 2)Shipping by bulk ship |
Application: Pre-engineered steel buildings, industrial and
commercial roofing and cladding,agricultural buildings, building
accessories, light steel framing, Quonset huts, construction
tubular, appliance, and automotive, etc.
1. Q: What's the MOQ?A: Generally,the trail order are accepted. Any quantity is
acceptable.2. Q: How can you guarantee quality?A: Pre-production sample, inner inspection, final Inspection before
shipment, third-party inspection acceptable.
3.Q: Do you have OEM service?A: Yes.Variety of products size,quality and quantity can be
customized on your request.4. Q: Is the free sample available?A: Yes.We can supply FREE samples.But the delivery charge will be
covered by customers.
5. Q:How about your payment terms?
A: 30%T/T in advance and the balance against the copy of B/L, and
the irrevocable L/C at sight.
If you have any other questions, please don't hesitate to contact
with us!