ASTM A653 is the American standard for the galvanized steel.The Grade 340 means the Yield strength of the galvanized sheet will be 340Mpa or more.

For the galvanized corrugated steel sheet in 0.20mm*800mm.800mm is the width after corrugation, generally, the most of clients need the length in 1800mm, 2440mm, 3000mm or 3600mm etc0.20mm*800mm*1800mm about 390 pieces per metric ton0.20mm*800mm*2440mm about 290 pieces per metric ton0.20mm*800mm*3600mm about 196 pieces per metric ton

For the galvanized corrugated steel sheet in 0.20mm*900mm.900mm is the width after corrugation, generally, the most of clients need the length in 1800mm, 2440mm, 3000mm or 3600mm etc0.20mm*900mm*1800mm about 353 pieces per metric ton0.20mm*900mm*2440mm about 261 pieces per metric ton0.20mm*900mm*3600mm about 176 pieces per metric ton

Generally, there are two kinds of cold steel sheet, annealed and unannealed.In using, there are several kinds, like commercial quality, drawing, deep drawing and construction use.

For the cold steel coils we supply, the grade is Q195, SPCC or SAE 1008

For the coil ID of the galvalume coils, it will be 508mm or 610mm.

For the coil ID of the galvanized steel coils, it is 508mm or 610mm.

For the coil OD of the prepainted steel coils, it is relavant with the coil weight of the prepainted steel coils,Generally, the coil OD is 1000mm-1100mm.

For the coil OD of the aluzinc steel coils, it is relavant with the coil weight of the aluzinc steel coils,Generally, the coil OD is 1000mm-1100mm.

For the coil OD of the galvanized steel coils, it is relavant with the coil weight of the galvanized steel coils.Generally, the coil OD is 1000mm-1100mm.

For the coil ID of prepainted steel coils we supply is 508mm or 610mm.Generally, the clients from Russia, Ukrain etc need the 610mm.Most of areas like Africa, Southeast Asia, South America need the 508mm.

For the corrugated sheet, we mainly supply galvanized corrugated sheet, galvalume(aluzinc coated) corrugated sheet, prepainted corrugated steel sheet.Generally, the thickness is 0.13mm-0.60mm.

For the color of the top side of the prepainted steel coils(color coated steel coils), it will be as per the RAL CODE or sample from clients.Like RAL 9016, RAL 3005, RAL 3011, RAL 6005, RAL 3018, RAL 5017, RAL 5012, etc.

For the prepainted steel coils(color coated steel coils), the top color will be as per the clients' request based on the RAL code or sample.The back color is RAL 9002(white grey) generally.

For the galvanized steel coils in 0.18mm*750mm, there are about 940meters per ton.

For the galvanized coils in 0.18mm TCT *762mm,There is about 928 meters per metric ton. From 3 tons to 5tons for each coil.

For the roofing sheet we can supply below:1.galvanized corrugated steel sheet0.13mm-0.60mm2.galvalume(aluzinc coated) corrugated sheet0.16mm-0.60mm3.Preainted corrugated sheet0.16mm-0.60mmThe minimum quantity for is one container.

The minimum order for the prepainted steel coils we exported is 25tons(one 20feet container), the minimum quantity for each color is 5tons if the size is normal, for example, the thickness is from 0.30mm-0.60mm, the width is 1000mm, 12000m or 1250mm.

For the galvanized coils in 0.14mm*762mm,0.14mm TCT*762MM 1194 meters per metric tons

The followings are the common waves type for the aluzinc corrugated sheet and galvanized corrugated sheet:1. Aluzinc corrugated sheet(galvalume sheet):2. galvanized corrugated sheet

For the soft quality of the galvanized steel coils, aluzinc steel coils, generally, it will be HRB50-HRB60.The tensile strength is from350Mpa to 450Mpa.

Some clients ask the full hard for the galvanized corrugated sheet, galvanized coils, galvalume sheet.The full hard means the HRB=80, the tensile strength will be 550Mpa or more.

As per the result of the test, the GL sheet is better than GI sheet, check the picture below:

1. Resistance to corrosionAl-Zn coated steel sheet has better performance in corrosion resistance than GI sheet of the same thickness and its service life is 1-5times longer than general GI sheet.2.Thermal resistanceCommon HDG steel plate normally works under 230℃, and has its color changed at 250℃, however, Galvalume steel sheet can sustain the environment at 315℃ for long time.3.High reflectivi...

For the products we exported, will be loaded in Tianjin port, Qingdao port and Shanghai port.

For the payment term we will accept below:1. 40% down payment in advance by T/T, the balance will be paid immediately after receive the B/L copy.2. 20% down payment in advance by T/T and 80% by irrevocable L/C at sight issued by the acceptable bank.3.100% irrevocable L/C at sight issued by the classic bank.

For the coil weigh of the prepainted steel coilsGenerally, it is from 3 metric tons to 5.5 metric tons.Also can be done as per the clients' request.

For the prime hot dip galvanized steel coils, Generally, the weight for each coil we supply is from 3 metric tons to 8 metric tons.From 4 tons to 6tons is more common.

For the coil ID of galvanized steel coils, galvalume steel coils, prepainted steel coils.Two kinds of coil ID: 508mm and 610mm508mm is common, the coil ID in 610mm is required by the some countries, like Russia, Ukraine etc.

For the hot dip galvanized steel coilsThickness tolerance: +0/-0.01mmWidth tolerance: +2mm/-2mm

For the az coating of the galvalume/aluzinc steel coil we supply below:AZ coating: az50-az150

Generally, for the zinc coating of the galvanized steel coils we supply below.Thickness: 0.14mm-0.60mm Z60-Z180Thickness: 0.60mm-2.0mm Z60-Z275

The thickness and width we can supply for the galvalume steel coil below:Thickness: 0.18mm-2.0mmWidth: 914mm/1000mm/1219mm/1200mm/1250mm

The thickness and width of the color coated steel coil we supply below:Thickness: 0.16mm-1.0mmWidth: 750mm-1250mm

The thickness of the hot dip galvanized steel coil we supply: 0.14mm-2.0mm.

For the color of the prepainted steel coils, generally, the back paint is RAL 9002 color, the top paint will be based on the clients' request, like RAL 9002, RAL 9016, RAL 5020, RAL 6017, RAL 9010, all of the RAL colors, or confirmed by the samples.

Package for the the steel coils:Water-proof paper inside, then the protective film and cover the steel sheet with the steel strip, protective plate in the both section.

For the prepainted steel coil/color coated steel coilTop coat: 17-25um(any color, as per the RAL code or client's sample)Back coat: 5-7um(it is RAL 9002 color generally)

The common internantional standard for the galvalume steel coil we supply below: 1. JIS G3321 SGCC2. DX51D+AZ3. ASTM A792 CS TYPE B

For the steel coils or corrugated steel sheet, one 20feet container can load 25-26 metric tons if there isn't the weight request at the destination.