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Product type
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Anti-corrosion process/Coating material
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Core characteristics
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Coating Thickness specification
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International standards
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Main application fields
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Plastic-coated steel pipe
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Hot-dip coated with PE or coated inside and outside with EP
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Excellent corrosion resistance, good electrical insulation (no electrical corrosion), low water absorption, high mechanical strength, low friction coefficient, suitable for long-term use
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Generally 0.3-1.0mm, adjustable according to specific requirements and standards
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ISO 21809-1:2018, DIN 30670:2012, etc.
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Petroleum, natural gas, chemical industry, water supply, etc.
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Epoxy Coal Tar Pitch Anti-corrosion Coating Products
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Made of epoxy resin, coal tar pitch, etc., two-component packaging
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Fast drying, good adhesion, excellent flexibility, convenient construction, resistant to acid, alkali, salt, water and oil
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Ordinary grade ≥400μm (one cloth and two oils); Strengthened grade ≥600μm (two cloths and three oils); Extra-strength grade ≥800μm (three cloths and four oils)
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ISO 21809-2, AWWA C210
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Pipeline-related projects requiring anti-corrosion
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2PE Anti-corrosion Spiral Steel Pipes
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Special anti-corrosion process, inner and outer layers coated with high-quality polyethylene
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Strong chemical corrosion resistance and wear resistance due to polymer anti-corrosion layer and protective layer
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Primer thickness about 0.1-0.3mm, outer polyethylene layer thickness about 1.8-3.0mm, adjustable according to engineering requirements
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ISO 21809-1, ASTM D1000, etc.
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Petroleum, natural gas, chemical industry, water supply, etc.
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Galvanized Anti-corrosion Steel Pipes
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Steel pipes immersed in molten zinc to form a zinc layer on the surface
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Zinc layer acts as a sacrificial anode, oxidizes before the steel matrix; even if partially damaged, surrounding zinc still provides electrochemical protection for the exposed steel
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Galvanized layer 120-500g/m² (30-70 microns)
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GB/T 3091, BS 1387, ASTM A53, etc.
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Various pipeline projects requiring anti-corrosion
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