S355J0WP
1.8945Structural weathering steel with enhanced phosphorus content for accelerated patina formation and superior atmospheric corrosion resistance. Minimum yield strength 355 MPa with impact testing at 0°C. WP designation indicates higher P content (0.06-0.15%) compared to W grades. Available only as flat products up to 12mm thickness. Special welding precautions required due to elevated P. Used for severe atmospheric exposure, coastal (non-marine) structures, architectural facades, and applications requiring rapid patina development.
Mechanical properties
Related materials
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33CrMoV12-9
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14NiCrMo13-4
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