Beryllium-Nickel Casting Alloys

Beryllium-Nickel Casting Alloys

Beryllium nickel casting alloys are characterized by their steel-like high strength, toughness, and hardness properties. However, unlike the steel alloys, the beryllium nickel alloy system offers these properties with the additional benefit of superior thermal conductivity. Beryllium nickel casting alloys are notable for their high resistance to wear, thermal shock, and corrosion even at elevated temperatures in the range of 1000o F.

IBC Advanced Alloys produces a very clean high purity-high strength BeNi beryllium nickel casting alloy. This material is specially produced utilizing pure metallic vacuum cast beryllium and ultra pure nickel to enhance metal fluidity and cast-ability. Our FA 230 High Strength BeNi Casting Alloy is particularly effective for high reliability-high durability investment cast or ceramic shell cast (Shaw process) mold tooling components that require consistent excellent replication of highly refined and intricate casting details.

The 40 series BeNiCr Casting Alloys have historically been utilized for high definition precision cast jewelry and commemorative rings, as well as, dental component applications.

Chemical Composition: Beryllium-Nickel Casting Alloys

Alloy Design Chemicals Requirements (% weight)
 BeCrCNi
FA230 2.30 – 2.40 — .30 maxBalance 
41C  2.50 – 2.85 0.45 – 0.801.00 – 2.00  Balance
42C  2.50 – 2.8510.50 – 13.50  — Balance
43C  2.50 – 2.85 5.00 – 7.00 — Balance
44C  1.90 – 2.20 0.45 – 0.80 — Balance
46C  1.90 – 2.2010.50 – 13.50  — Balance

 

Physical Data: Beryllium-Nickel Casting Alloys

Alloy Design Density (lbs/in3)Typical Melting RangeTypical Pouring Range (F.)Hardness Rockwell (annealed) Hardness Rockwell (annealed & aged)CTE*
FA2300.2982,200-2,400° F
1,200-1,315° C
 2,500-2,700° F
1,370-1,480° C
HRb 95-100HRc 46-52
41C 0.2982,100-2,300° F
1,150-1,260° C
2,300-2,500° F
1,260 -1,370° C
HRb 95-100HRc 46-52
42C 0.2962,100-2,300° F
1,150-1,260° C
2,300-2,500° F
1,260-1,370° C
HRb 96-105HRc 36-42 8
43C 0.297 2,100-2,300° F
1,150-1,260° C
2,300-2,500° F
1,260-1,370° C
HRb 96-100HRc 42-48
44C 0.298 2,100-2,300° F
1,150-1,260° C
2,300-2,500° F
1,260-1,370°
HRb 95-100HRc 44-50
46C 0.2962,100-2,300° F
1,150-1,260° C
2,300-2,500° F
1,260-1,370°
HRb 96-100 HRc 36-42
*10-6 in./in./deg.F.

FA 230 Nominal Chemical Composition and Properties

Beryllium 2.20-2.40 Density lbs.Carbon .30 max Melting TempPouring TempNickel = ImpuritiesCTE*
0.295 2,200 – 2,400° F /
1,200 – 1,315° C
2,500 – 2,700° F /
1,370 – 1,480° C
Balance78
 
Solution Annealing DegreesHeat Treatment Degrees
1900 – 2000 / 1040-1100C water quench3 Hrs. @950F / 510C
*Value x 10-6 in./in./deg.F.

UTS (ksi) MinYS (ksi) minElong (min)HRC (min)
165150148

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