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Product Description

ZINCGRIP® Steel is continuously coated on both sides with a zinc coating, using a hot dip process that we originally pioneered. With its tight metallurgical bond between the steel and the coating, ZINCGRIP Steel provides the strength and formability of steel plus the corrosion protection of zinc. Zinc protects the base metal by providing a barrier to corrosive elements and prefentially corroding in place of the base steel. ZINCGRIP Steel is available with special surface finishes, tailored for specific applications, and in a variety of base metal grades and coating weights. ZINCGRIP Steel is widely used in many applications in the automotive, appliance, construction, Heating, Ventilation, and Air Conditioning (HVAC), and other industries.

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Product Applications

Available Grades

Advanced High Strength Steel (AHSS)

Commercial Steel (CS)

Forming Steel (FS)

Deep Drawing Steel (DDS)

Extra Deep Drawing Steel (EDDS, EDDS+)

Structural Steel (SS)

High Strength Low Alloy Steel (HSLAS)

Dent Resistant (DR)

Bake Hardenable (BH)

Dual Phase (DP)

Product Details

Product Features

CORROSION RESISTANCE

The zinc coating protects the base metal by providing a barrier to corrosive elements and also by the sacrificial nature of the coating. Ultimate service life depends on coating thickness and the severity of the environment.

EXCELLENT SURFACE APPEARANCE

ZINCGRIP Steel is available as EXTRASMOOTH™ or ULTRASMOOTH® for surface critical applications.

FORMABILITY

ZINCGRIP Steel can be used to produce parts containing simple bends to parts with deep drawing requirements.

PAINTABILITY

ZINCGRIP Steel is readily paintable provided proper pre-treatment is performed.

WELDABILITY

ZINCGRIP Steel can be joined using a variety of accepted welding practices.

Surface Finishes, Protection, and Lubrication

ZINCGRIP Steel is available in three types of surface appearances.

Minimized spangle is ZINCGRIP Steel that, through control of the coating bath chemistry, has no visible spangle. It is available with the full range of coating weights and base metal qualities. It is used in noncritical surface applications and is not guaranteed to be free from stretcher strain, luder lines, or fluting.

ZINCGRIP EXTRASMOOTH Steel is a product that is produced by skin passing the coated sheet to smooth the surface and impart resistance to stretcher strain and fluting. It is suited for applications where appearance is important. EXTRASMOOTH is recommended for coil coated applications.

ZINCGRIP ULTRASMOOTH Steel is a skin pass product with superior surface appearance, uniformity and consistency. Applications would include more stringent surface quality requirements.

We utilize nitrogen finishing to control coating weight and smooth the coating. This technology, along with coating bath chemistry control, combine to produce a superior zinc coated product.

To prevent staining in transit and storage, it is recommended that ZINCGRIP Steel be supplied with a rust-preventive oil. A chemical passivating treatment can also be supplied. A chemical treatment is not recommended if the product will be painted unless proper surface preparations are taken. Specific chemical treatment requirements (such as RoHS) must be clearly indicated and reviewed. ZINCGRIP Steel can be supplied with a zinc-phosphate coating called PAINTGRIP® for applications that require paint pre-treatment.

Coating Characteristics

The hot dip coating process assures a tightly adherent, uniform coating of zinc on both sides of the product. A thin alloy layer readily permits normal fabrication practices without incurring significant coating damage. Hot dip coatings are specified in a wide range of coating weight.

Formability and Mechanical Properties

COMMERCIAL STEEL (CS) AND FORMING STEEL (FS)

Commercial Steel Type B (CS Type B) and Forming Steel Type B (FS Type B) should be used for moderate forming or bending applications. These products are produced from aluminum-killed continuously cast slabs and unless otherwise specified, have a carbon content of 0.02 – 0.15%C and 0.02 – 0.10%C respectively. To prevent the occurrence of fluting or stretcher strains during forming or processing, both products must be ordered as EXTRASMOOTH. These products are subject to aging and the temper rolling effect is temporary.

DEEP DRAWING STEEL (DDS)

For more stringent forming applications, Deep Drawing Steel should be ordered. Deep Drawing Steel has a controlled carbon content less than 0.06%C. Interstitial Free (I-F) steel may be supplied at the manufacturer’s discretion unless low carbon (non I-F) is specifically requested at the time of purchase.

EXTRA DEEP DRAWING STEEL (EDDS, EDDS+)

Extra Deep Drawing Steel or Extra Deep Drawing Steel Plus (EDDS+) should be ordered for the most difficult forming applications. These steels, also known as Interstitial Free (I-F) steel, are produced from vacuum degassed stabilized grades with less than 0.010% C. EDDS+has the lowest carbon content available and has been specially formulated to be our most ductile product.

Structural Steel (SS) or High Strength Low Alloy Steel (HSLAS). Bake Hardenable (BH), Dent Resistant (DR) and Dual Phase (DP) Steels are also available.

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