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GI/PPGI

GI / PPGI steel coil from Junnan Steel

Galvanized steel (GI) and prepainted galvanized steel (PPGI) coils. Hot-dip galvanized, zinc coating 40-275 gsm. PPGI with PVDF, polyester, or SMP coating. For roofing, cladding, and appliances.

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GI / PPGI steel coil

GI / PPGI steel coil Product Range at a Glance

Browse the full product list below or send an inquiry.

GI / PPGI steel coil
GI

Galvanized Steel Coil (GI)

Hot-dip galvanized. Zinc coating 40-275 gsm. DX51D, SGCC, Z275.

GI / PPGI steel coil
PPGI

Prepainted Galvanized Steel (PPGI)

PVDF, polyester, SMP coatings. RAL colors. For roofing and cladding.

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GI / PPGI steel coil Specs

GI / PPGI steel coil Specifications

Every GI/PPGI coil batch is produced under strict quality control. QC includes coating weight testing, adhesion testing, color measurement, and reverse impact testing.

  • Standards: ASTM A653, JIS G3302, EN 10142, GB/T 2518 (GI); ASTM A755, JIS G3312 (PPGI)
  • Base Material: DX51D, DX52D, SGCC, SGLCC, SPGC, or customer specified
  • Zinc Coating: 40-275 gsm per side. Z80, Z100, Z120, Z180, Z275 available.
  • Coating (PPGI): PVDF (20+ year), SMP (10-15 year), Polyester (5-10 year)
  • Thickness: 0.12-2.0 mm. Width up to 1500 mm.
  • Colors: Custom RAL or customer sample. Gloss level per specification.

GI / PPGI steel coil Applications Across Industries

Our gi / ppgi steel coil products serve critical roles worldwide.

Roofing & Cladding

Roofing & Cladding

Metal roofing sheets, wall cladding panels, and insulated sandwich panels.

Home Appliances

Home Appliances

Refrigerator panels, washing machine shells, microwave housings.

Automotive

Automotive

Underbody parts, heat shields, and interior trim components.

Furniture & Storage

Furniture & Storage

Shelving, cabinets, lockers, and garage door panels.

Why Choose Junnan Steel for GI / PPGI steel coil Supply

10+ Years Export Expertise

Founded in 2015, exported gi / ppgi steel coil to 118+ countries.

Factory-Direct Pricing

Mill-level pricing, no middlemen.

Third-Party Inspection

SGS, BV, CIQ. MTC per batch.

Flexible Shipping

15-25 days. FOB, CIF, CFR, EXW.

Global Support

Multi-language. 24h response.

FAQ About GI / PPGI steel coil

What is the difference between GI and PPGI?

GI is galvanized steel coil (zinc coated). PPGI is prepainted GI with an additional color coating layer.

What zinc coating weight do you recommend?

Z100-Z120 for general indoor use. Z180-Z275 for outdoor/corrosive environments.

What PPGI coatings are available?

PVDF (best for 20+ years outdoor), SMP (industrial), Polyester (economical).

What colors and gloss levels?

Custom RAL colors. Gloss level 20-70% as specified.

What is the lead time?

15-25 days from deposit. Color matching samples available.

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