Grade Calculator

Material Selection Tool

Bar Size & Grade Calculator

Choose a mode below — enter either your required load, or your pre-specified bar grade and size.

Enter your required load. The tool finds the smallest bar size needed at each grade and shows the weight saved versus Grade 460, at 1 m and 12 m reference lengths.

Finds the smallest size whose rated capacity meets or exceeds your load. Savings are always shown against Grade 460.

Result by grade

Full comparison

GradeSize requiredWeight @ 1mSaved @ 1m
vs Gr.460		Weight @ 12mSaved @ 12m
vs Gr.460

Select your pre-specified grade and bar size. The calculator checks whether you can reduce bar size using a higher grade — showing an exact match (full capacity met) and a near match (within 5% of capacity).

Your current specification

Drop-down options

Sizing table, component weights and bar kg/m from the supplied spreadsheet (sizes M10–M120, grades 460/520/550/640). Updated capacities applied throughout. Weight = 2 × (fork + pin + load-cell weight) + bar kg/m × length, at 1 m and 12 m. Drop-down lookup tables engineer-verified 12/08/26. “Exact match” = replacement fully meets current capacity. “Within 5%” = replacement reaches at least 95% of current capacity.

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