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Alloys for gravity casting

List of characteristics of developed alloys for foundry

  NS10 NS11 NS40 NS50 NS60
Tensile
strength
MPa 446 418 434 302 300
0.2%
proof
strength
MPa 359 340 381 208 197
Elongation % 3.4 4.8 1.3 16.5 10.6
Hardness HRB 72 70 79 50 49
Thermal
conductivity
W/m・K 120 131 124 151 144
Temper T6 T6 T6 T6 T6
Specific
gravity
2.73 2.74 2.72 2.68 2.67
Castability 5 4 5 3 4
Corrosion resistance 2 2 2 5 5
Surface treatment
performance
2 2 2 4 4
Features High strength High strength High strength at high temperatures High toughness High toughness
Applications Intake manifold cylinder heads Screw jacks
High load equipment parts
Turbo engine pistons Pipe benders Brake caliper bodies
  NS80 NH42 NU 1 NU 2 NU10
Tensile
strength
MPa 346 381 442 486 395
0.2%
proof
strength
MPa 259 346 395 455 297
Elongation % 3.9 0.7 5.8 4.0 13.1
Hardness HRB 65 80 78 83 71
Thermal
conductivity
W/m・K 128 120 131 141 121
Temper T6 T6 T6 T6 T6
Specific
gravity
2.72 2.70 2.82 2.83 2.82
Castability 4 4 1 1 1
Corrosion resistance 3 1 1 1 1
Surface treatment
performance
2 1 3 3 3
Features High strength Good wear resistance High strength High strength High strength
Applications Engine mount brackets Pump parts
Transmission parts
Pipe benders
Hydraulic parts for aircraft
Pipe benders
Hydraulic parts for aircraft
Brake calipers
Hydraulic pressure resistant parts

※Castability and corrosion resistance: 5: good; 1: poor
Note 1: This data is provided solely for reference purposes.

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