United States · ASTM

B148 Grade B

ASTM B148:2014 — Standard Specification for Aluminum-Bronze Sand Castings

Chemical composition

wt% · log scale
0.11101001000Al9 – 11Cu86Fe0.8 – 1.5
  • min – max range
  • typical value

Mechanical properties

value range by condition
Yield strength Rp0.2≥170 MPaTensile strength Rm≥450 MPaElongation A≥20 %HardnessHBcastings, As castYield strength Rp0.2≥275 MPaTensile strength Rm≥550 MPaElongation A≥12 %HardnessHBcastings, Heat treated

Chemical composition

ElementminmaxSimilarRemarks
Al911
Cu86Cu + named elements: 99% min
Fe0.81.5

Mechanical properties

Heat treatment / conditionYield strengthTensile strengthElongationReduction of areaImpact energyHardness
castings, As cast≥170≥450≥20 Lo=50mmHB ≤110 Approx
castings, Heat treated≥275≥550≥12 Lo=50mmHB ≤160 Approx