Astm A653m Galvanized Steel Sheet Grade 340 Hot Dipped Galvanized Steel Plate

Galvanised steel material plays a vital role in industries requiring, such as construction,

automotive, and appliance manufacturing. Zinc coating provides lasting protection against

rust and environmental wear, making it ideal for outdoor and moisture-prone applications.

ASTM A 653A 653M is a standard specification for hot-dip galvanized steel coils. It sets the

requirements for the composition and quality of the zinc coating to ensure consistent

performance and durability. This standard is widely recognized and used in the industry

to ensure the reliability and consistency of galvanized steel coils.

Technical Specifications of Our Galvanized Steel

2 kinds common used surface

On the surface of galvanized steel material, you will see a pattern that looks like it has formed

naturally. It is a pattern formed by the crystallization of zinc element during the cooling process

after molten zinc is attached to the surface of steel material. This is called Spangle.

♦ Regular spangle

Regular spangle is known for their unique, rough, petal-like crystal, which provide a very strong visual
impact. These spangles are suitable for application that emphasize visual and decoration effects. The
rough spangle helps to improve corrosion resistance, especially in harsh environment such as high
humidity areas, marine climates areas.

♦ Zero spangle

Zero spangle means that there are almost no zinc crystal can be seen, just like an ordinary piece of

metal plain sheet. The advantage of zero spangle is that the finish is extremely good, very beautiful, and

the coating will be denser and even.

Zero spangle is mostly used in areas with extremely high appearance quality requirements,

such as precision electronic equipments and exterior parts of high-end automobiles.

Why Choose Galvanised Steel ?

Qingdao Jero steel company is a professional raw material integrated supplier, located in the beautiful costal city, Qingdao,

mainly product is steel material and Aluminum alloy sheet/coil.

We own a very comfortable work environment, and humanized management system, we hope that a job can not only bring

salary, ability, friendship, experience, but also bring happiness, passion, and the sense of achievement.

• We guarantee the product quality by our inspection team, professional equipment, that is the key point for getting a stable

 and sustainable development.

• We have strictly constraint for every step, such as production, package, inspection, delivery etc.

• Besides, we have excellent sales team, each member have over 4 years raw material export experience, they can judge the

 market changes to a certain extent and provide some reasonable advice for customers.

A stable customer can bring us good reputation and constantly economic benefit. For the past years, relying on a perfect quality

management system and a rigorous service attitude, we get a trusted brand image in the minds of customers.