{"id":28335,"date":"2026-07-23T16:02:02","date_gmt":"2026-07-23T08:02:02","guid":{"rendered":"https:\/\/wanzhisteels.com\/?p=28335"},"modified":"2026-07-24T09:18:13","modified_gmt":"2026-07-24T01:18:13","slug":"265-tons-ppgi-coil-corrugated-steel-sheet-to-singapore","status":"publish","type":"post","link":"https:\/\/wanzhisteels.com\/vi\/265-tons-ppgi-coil-corrugated-steel-sheet-to-singapore\/","title":{"rendered":"265 Tons PPGI Coil & Corrugated Steel Sheet to Singapore"},"content":{"rendered":"\n

On June 10, 2026, a Singapore construction materials distributor signed a 265-ton steel order with Wanzhi Steel, including 150 tons of PPGI coil and 115 tons of color coated corrugated steel sheet. From contract signing to delivery at the customer’s warehouse, the whole process took 36 days. Production ran 18 days, loading on June 28, and arrival on July 16. The customer was satisfied with the product quality, coating finish, and packaging condition when they received the shipment.<\/p>\n\n\n\n

I\u3001Order Overview: 265 Tons of PPGI Coil & Corrugated Steel Sheet<\/h2><\/div>\n\n\n\n

This order follows a typical “coil + finished sheet” procurement pattern common among Singapore distributors: purchasing PPGI coil as raw material stock while ordering ready-to-install corrugated sheets for immediate project deployment.<\/p>\n\n\n\n

Order Summary Table<\/strong><\/p>\n\n\n\n

Item<\/th>Type<\/th>Application<\/th><\/tr><\/thead>
PPGI Coil<\/td>Pre-Painted Galvanized Steel Coil<\/td>Raw material for local profiling\/roofing fabrication<\/td><\/tr>
Color Coated Corrugated Steel Sheet<\/td>Finished corrugated roofing panel<\/td>Direct installation \u2014 roofing, wall cladding, fencing<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

1. PPGI Coil Specifications<\/h3><\/div>\n\n\n\n

The 150 tons of pre-coated galvanized steel coil in this order are custom-made products for the client. This includes 100 tons of RAL9002 PPGI coils<\/span><\/a> and 50 tons of RAL9016 PPGI coils. Singapore distributors typically source pre-coated roofing membranes and process them locally into various corrugated profiles, wall panels, and roofing panels of custom lengths according to project specifications.<\/p>\n\n\n\n

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\"100<\/figure><\/div>\n\n\n\n

RAL9016 PPGI<\/h3><\/div>\n<\/div>\n\n\n\n
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\"Singapore<\/figure><\/div>\n\n\n\n

RAL9002 PPGI<\/h3><\/div>\n<\/div>\n\n\n\n
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\"Singapore<\/figure><\/div>\n\n\n\n

Waiting Packaged<\/h3><\/div>\n<\/div>\n<\/div>\n\n\n\n

PPGI Coil Parameter Table<\/strong><\/p>\n\n\n\n

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\n \n \n \n \n \n \n \n \n \n \n
Products <\/td>\n Standard <\/td>\n Color <\/td>\n Description <\/td> \n Specification\/mm <\/td>\n Total Weight\/ton <\/td> \n <\/tr>\n <\/thead>\n
PPGI coil <\/td>\n EN10346 <\/td>\n RAL9002 <\/td>\n DX51D
Z180 (180 g\/m\u00b2)
Top:20um
Back:10um <\/td>\n 		0.6*900 <\/td>\n 150 <\/td>\n <\/tr>\n
RAL9016 <\/td>\n <\/tr>\n
Inner Diameter <\/td>\n 508 mm <\/td>\n <\/tr>\n
Delivery Time <\/td>\n 18 days <\/td>\n <\/tr>\n
Destination country, port <\/td>\n Port of Singapore, Singapore <\/td>\n <\/tr>\n
Transport Package <\/td>\n Standard Seaworthy Packing <\/td> \n <\/tr> \n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n\n\n\n

Why PPGI coil, not just finished sheet?<\/strong> Singapore’s construction supply chain relies on local profiling factories that convert PPGI coil into various corrugated patterns (YX25-210-840, YX35-125-750, YX51-380-760, etc.) on demand. Purchasing coil lets distributors react quickly to different project requirements without waiting for overseas custom-profile production.<\/p>\n\n\n\n

II. Color Coated Corrugated Steel Sheet<\/h3><\/div>\n\n\n\n

The 115 tons of color coated corrugated steel sheet are ready-to-install finished panels. These go directly from container to construction site, no secondary processing required.<\/p>\n\n\n\n

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\"Singapore<\/figure><\/div>\n\n\n\n

RAL6005 production<\/h3><\/div>\n<\/div>\n\n\n\n
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\"Singapore<\/figure><\/div>\n\n\n\n

Corrugated steel sheet<\/h3><\/div>\n<\/div>\n\n\n\n
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\"Preliminary<\/figure><\/div>\n\n\n\n

Packaging<\/h3><\/div>\n<\/div>\n<\/div>\n\n\n\n

Corrugated Steel Sheet Parameter Table<\/strong><\/p>\n\n\n\n

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\n \n \n \n \n \n \n \n \n
Products <\/td>\n Standard <\/td>\n Color <\/td>\n Description <\/td> \n Specification\/mm <\/td>\n Total Weight\/ton <\/td> \n <\/tr>\n <\/thead>\n
Color Corrugated Sheet <\/td>\n JIS G3302 SGCC <\/td>\n RAL6005 (Green) <\/td>\n Z180 (180 g\/m\u00b2) <\/br> Top: 25microns PVDF <\/br> Back: 5microns PE <\/td>\n 0.42*830*4750 mm <\/td>\n 115 <\/td>\n <\/tr>\n
Delivery Time <\/td>\n 18 days <\/td>\n <\/tr>\n
Destination country, port <\/td>\n Port of Singapore, Singapore <\/td>\n <\/tr>\n
Transport Package <\/td>\n Standard Seaworthy Packing <\/td> \n <\/tr> \n <\/tbody>\n <\/table>\n <\/div>\n <\/div>\n\n\n\n

Corrugated profile advantage:<\/strong> The corrugated shape does more than look good. It adds structural rigidity. A 0.4 mm corrugated sheet has much higher load-bearing capacity and wind resistance than a 0.4 mm flat sheet, while also creating natural drainage channels. This matters for Singapore’s high-rainfall tropical environment (annual rainfall ~2,400 mm).<\/p>\n\n\n\n

2. PPGI Coil & Corrugated Steel Sheet \u2014 What’s the Difference?<\/h2><\/div>\n\n\n\n

Many buyers, especially first-time importers, ask: “PPGI coil & corrugated steel sheet \u2014 aren’t they the same thing?” They share the same substrate and coating, but do different jobs in the construction supply chain.<\/p>\n\n\n\n

Aspect<\/th>PPGI Coil<\/th>Corrugated Steel Sheet<\/th><\/tr><\/thead>
Form<\/td>Continuous coil (rolled)<\/td>Cut-to-length, profiled panels<\/td><\/tr>
Processing<\/td>Raw material \u2014 needs local roll-forming<\/td>Finished product \u2014 ready to install<\/td><\/tr>
Flexibility<\/td>Can produce ANY profile locally<\/td>Fixed profile & length from factory<\/td><\/tr>
Lead Time<\/td>Rapid production, completed in 3-5 days.<\/td>Factory roll-forming + shipping = longer lead time<\/td><\/tr>
Logistics<\/td>Coil = efficient container fill (compact)<\/td>Flat panels = requires careful stacking, more volume<\/td><\/tr>
Target Buyer<\/td>Distributors with local profiling capability<\/td>Contractors \/ end-users who install directly<\/td><\/tr>
Price<\/td>Lower per ton (no roll-forming cost)<\/td>Higher per ton (includes forming + cutting)<\/td><\/tr>
Risk<\/td>Requires local processing capability<\/td>Profile must match project spec exactly<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Singapore procurement strategy:<\/strong> Most Singapore distributors order both, PPGI coil for flexible stock and corrugated sheets for immediate project fulfillment. This 265-ton order (150 coil + 115 sheet) matches this dual procurement pattern.<\/p>\n\n\n\n

3. Singapore’s Tropical Climate \u2014 Three Challenges for Steel Roofing<\/h2><\/div>\n\n\n\n

Singapore’s equatorial climate (1\u00b0 north latitude) presents three persistent challenges that make PPGI\/corrugated steel specification a decision worth getting right.<\/p>\n\n\n\n

3.1 High Humidity & Salt Air \u2014 Corrosion Accelerator<\/h3><\/div>\n\n\n\n

Singapore’s average relative humidity sits at 84%, with coastal areas receiving constant salt-laden air. Bare galvanized steel (Z80) may show white rust within 2\u20133 years near the coast. PPGI with Z120\u2013Z180 zinc coating + organic paint layer creates a dual-barrier system that delays corrosion onset by 5\u201310\u00d7 compared to bare GI.<\/p>\n\n\n\n

Recommendation for Singapore<\/strong>: Z120 minimum for inland projects; Z180\u2013Z275 for coastal and industrial zones (Jurong Island, Tuas port areas).<\/p>\n\n\n\n

3.2 Intense UV Radiation \u2014 Paint Degradation<\/h3><\/div>\n\n\n\n

Singapore receives 5\u20137 kWh\/m\u00b2 of solar radiation daily. Standard PE paint begins chalking after 8\u201310 years under such UV intensity. SMP extends to 12\u201315 years; PVDF maintains color and gloss for 20+ years even under equatorial UV.<\/p>\n\n\n\n

Recommendation<\/strong>: PVDF or HDP coating for premium projects (MRT stations, commercial buildings, data centres); SMP for mid-range; PE only for short-term or budget projects.<\/p>\n\n\n\n

3.3 Heavy Rainfall \u2014 Water Ingress & Drainage<\/h3><\/div>\n\n\n\n

Singapore averages 167 rainy days per year with ~2,400 mm annual rainfall. Corrugated profile design matters. Trapezoidal profiles (YX51-380-760) provide better drainage and higher load capacity than simple wave profiles. Proper overlap design (minimum 150 mm lateral, 200 mm end) and sealant application are important for waterproofing.<\/p>\n\n\n\n

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\"Ral9016<\/figure><\/div>\n\n\n\n

RAL9016 coil<\/h3><\/div>\n<\/div>\n\n\n\n
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\"RAL6005<\/figure><\/div>\n\n\n\n

Loading<\/h3><\/div>\n<\/div>\n\n\n\n
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\"TSSU2300552<\/figure><\/div>\n\n\n\n

Encasement<\/h3><\/div>\n<\/div>\n<\/div>\n\n\n\n

Climate Adaptation Summary<\/strong><\/p>\n\n\n\n

Climate Factor<\/th>Challenge<\/th>Steel Specification Response<\/th><\/tr><\/thead>
High humidity (84% avg)<\/td>Corrosion acceleration<\/td>Zinc Z120+; dual barrier (zinc + paint)<\/td><\/tr>
Salt air (coastal)<\/td>White rust, pitting<\/td>Z180\u2013Z275 for coastal; zero-spangle substrate<\/td><\/tr>
Intense UV (equatorial)<\/td>Paint chalking, fading<\/td>PVDF\/HDP coating; light colors for reflectivity<\/td><\/tr>
Heavy rain (2400 mm\/yr)<\/td>Water ingress, ponding<\/td>Trapezoidal profile; proper overlap & sealant<\/td><\/tr>
Temperature swing (25\u201335\u00b0C)<\/td>Thermal expansion<\/td>Allow expansion joints; use flexible fasteners<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

4. Quality Control & Customer Satisfaction<\/h2><\/div>\n\n\n\n

The customer inspected the shipment upon arrival on July 16 and confirmed:<\/p>\n\n\n\n

Check Item<\/th>Standard<\/th>Result<\/th><\/tr><\/thead>
Zinc coating weight (Z180)<\/td>JIS G3302 \/ ASTM A653<\/td>\u2713 Pass<\/td><\/tr>
Paint coating thickness (top 20, 25\u03bcm)<\/td>GB\/T 13448 coating thickness test<\/td>\u2713 Pass<\/td><\/tr>
Paint adhesion (cross-cut test)<\/td>ISO 2409 Class 0\u20131<\/td>\u2713 Pass<\/td><\/tr>
Color consistency (\u0394E < 1.5)<\/td>RAL color card comparison<\/td>\u2713 Pass<\/td><\/tr>
Surface finish (no scratches, no bare spots)<\/td>Visual inspection per contract<\/td>\u2713 Pass<\/td><\/tr>
Corrugated profile dimension accuracy<\/td>\u00b10.02mm thickness; \u00b12mm width tolerance<\/td>\u2713 Pass<\/td><\/tr>
Packaging integrity (no moisture damage)<\/td>Seaworthy packaging intact after sea transit<\/td>\u2713 Pass<\/td><\/tr>
MTC (Material Test Certificate)<\/td>–<\/td>\u2713 Provided<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Customer feedback:<\/strong> “The PPGI coil surface is smooth and uniform, no color variation between coils. The corrugated sheets arrived in perfect condition, no edge damage or paint scratches despite 15 days of sea transport. The zinc coating weight matches the MTC values. We are very satisfied with the product quality and will continue working with Wanzhi Steel.”<\/p>\n\n\n\n

5. Singapore Steel Market \u2014 Why China Is the #1 Source<\/h2><\/div>\n\n\n\n

Singapore’s steel import market has grown significantly in recent years, with China holding a dominant position. China possesses three main competitive advantages in this market:<\/p>\n\n\n\n