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Steel

Structural plate, sections and bars to EN, ASTM, JIS, GB, CSA, AS/NZS, IS and GOST.

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Structural bolts

How the Property class 8.8 equivalents compare

Bolt property classes and their US counterparts. Class 8.8: 800 MPa tensile, 0.8 × 800 = 640 MPa yield.

GradeStandardYield strengthTensile strengthEvidence
Property class 8.8

The everyday structural bolt: 800 MPa tensile, 640 MPa yield (nominal). Minimums rise above 16 mm diameter.

InternationalISO 898-1≥ 640 MPa1≥ 800 MPa1
Corroborated
1
Single source
6
Property class 10.9

High-strength structural bolt for preloaded joints: 1000 MPa tensile, 900 MPa yield (nominal).

InternationalISO 898-1≥ 940 MPa1≥ 1 040 MPa1
Corroborated
1
Single source
4

Planned groups

  • Very high-strength plate (S690Q, A514)
  • Rebar: HRB400/500 (GB 1499.2), 500N (AS/NZS 4671), SD390 (JIS)
  • Stainless and weathering steel

Standards for steel

All standards for steel