G550 Galvalume Steel Coil Sheet (GL)

G550 means that the yield strength of galvalume steel coil/sheet is not lower than 550Mpa. G550 is high strength galvalume sheet steel and G550 is full hard. It’s yield strength and strength of extension is fairly close ,about 650Mpa to 750MPa.

Specification of G550 Galvalume/Aluzinc Steel Coil/Sheet(GL)

consists :aluminum ( 55% in weight), zinc ( 43.4% in weight ), and silicone ( 1.6% in weight ).
Zinc billet, the key raw material for GI and GL production. Jianglin zinc billet has a high market share among the galvanizing industry → cost has more advantages.

specificationsProductive CapacityAnnual output is 180,000 tonnes
Velocity of Rolling Technology130 m/min
Energy SourcesElectricity、Water、Steam
Thickness0.2 – 1.2 mm
Width900 – 1250 mm
Inner Diameter508 – 610 mm
Outer Diameter1100 – 2100 mm
Coil Weight≤ 10 T


  1. corrosion resistance — aluminum forms a dense layer of alumina
  2. Heat resistance — withstand 300 degrees Celsius ↑
  3. Heat reflective — thermal reflectivity is twice as high as galvanized steel
  4. Economy —the area of Al-Zn steel plate is more than 3% larger than that of steel plate with the same weight and the same thickness of gold coating.


  1. Construction industry: roof, wall, garage, soundproof wall, plumbing and composite house, etc.
  2. Automotive industry: muffler, exhaust pipe, wiper accessories, fuel tank, truck box, etc.
  3. Home appliances: refrigerator backplane, gas oven, air conditioner, electronic microwave oven, lcd frame, crt explosion proof belt, led backlight source, electric gas cabinet, etc.
  4. Agriculture: pig house, chicken house, granary, greenhouse pipe, etc.
  5. Other: broken thermal insulation cover, heat exchanger, dryer, thermostat, etc.


Jianglin Corportion has 3 Production Lines.

SpecificationRolling productionGalvanizing productionPPGI &PPGL production
Installation time200220082012
Capacity700,000 tons650,000 tons350,000 tons
Thickness0.12-5.0mm(mostly 0.3-0.8mm)
Coil weight3-15 tons
Base materialCold rolled, GI, Aluzinc coil
Paint TypePE, SMD, HDP, PVDF
Function SurfaceDifferent printed pattern(marble, wooden grain), antifinger, static free, chameleon

1.Cold Rolling Production

Jianglin is equiped with 3 production lines of 6 rolls rolling machinery guarantee the precise thickness of the coils. Yearly processing capacity is more than 700,000 tons.

2.Galvanizing Production Line

Jianglin is equipped with 3 production lines of galvanizing including one Zinc coating line and two Aluzinc production line. Yearly production is around 600,000 tons. Some of the cold rolled coils are sold to different factories.
For thickness, we focus on 0.3-0.8mm. Most of Shandong market galvanized coil are from Jianglin.

3.PPGL and PPGI Production Line

Jangling PPGI &PPGL is mostly for oversea clients, which has high quality requirement on zinc coating thickness.


Jianglin Steel corporation is strictly applying 6S management system. For past 5 years, though the global steel market is under very tough environment, we have reached up to 5%-9% revenue increase.



There are basically standard sea freight package and Simple package packing methods, includes:

  1. Metal Band Strapping
  2. Outside Diameter Ring
  3. Label
  4. Protect Steel Sheet/ Protection
  5. Water and Rustproof Sheet
  6. Steel Sheet
Standarded sea freight packageSimple package for short delivery



For each and every batch of GI, PPGI, PPGL, we will check all the thickness, surface, and other parameters, just to guarantee the quality. Meanwhile, we have compelte order tracking system to make every coil trackable. Any mistake happening, we will be responsible.


Jianglin with production capacity of 700,000 tons per year, we have been collaborating the listed shipping companies in the world including COSCO, WORLD WIDE LOGISTICS, CMA, and other shipping companies. During the peak season when containers are hard to book, we always enjoy the previlige to book the shipment with a suitable price and schedule

Payment Terms

Jianglin is ready to accept any reasonable payment terms including LC , just hope for a win win situation. Meanwhile, we also collaborate with Alibaba. Alibaba safety guarantee order is welcome.


1.What is the minimum order quantity (MOQ)?
– Normally, the MOQ for one coil 1 ton.

2.What is the payment method?
– For new customers: 30%T/T deposit 70%T/T Before shipment.
– For partners and distributors, 30%T/T deposit 70% T/T Against B/L Copy.

For strategic partner, we can accept 30days LC.

3.What is the acceptable currency?
– We accept USD, EUR and RMB.

4.What is the delivery time?
– 5-10 days in advance depending on the stock status.

5.Where is the loading port?
– Normally, our loading ports are Tianjin, and Shandong. Or client can assign any port in China.

6.What is the delivery term?

7.Do you offer free samples?
– Yes, based on our stock status, we will send our customer free samples. The express fee is to be paid by our customers.