CENTRAL MIDDLEZHONG — A Design Adventure

IB DP DT — TOPIC B3.1: MATERIAL SELECTION LOCATION: UNKNOWN DECISIONS: 0

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Steel S275Yield: 275 MPa | Standard structural

Steel S355Yield: 355 MPa | 25% stronger, 15% cost premium

Weathering SteelForms protective patina | Zero painting

Galvanised SteelZinc coating | 20-50 yr protection

HDPE (Recycled)Plastic lumber | Rot-proof | Sustainable

Wetpour RubberEN 1177 impact | Seamless | 15+ yr

PU Resin HoldsClimbing standard | Textured | Replaceable

Structural Ply17-18mm birch/hardwood | T-nut ready

Start a project to record decisions

□Functional requirements identified

□Mechanical properties matched

□Durability/environment considered

□Budget constraints addressed

□Sustainability evaluated

□Local sourcing explored

□Safety standards met (EN/BS)

□Whole-life cost analysed

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