Hastelloy Ball

Hastelloy C276 Precision Balls

UNS N10276 / DIN 2.4819 | ISO 3290 G50–G500 | 1–100 mm

Hastelloy C276 precision balls for severe corrosive service where stainless steels fail: wet chlorine, hypochlorite, ferric/cupric chlorides, and hot contaminated media. Manufactured under ISO 9001 certified processes with 20+ years of nickel-alloy ball production experience.

Specifications

Parameter	Range / Standard
Material	Hastelloy C276 (UNS N10276 / DIN 2.4819)
Hardness	32–48 HRC (as delivered); annealed condition approx. 20–26 HRC
Diameter	1–100 mm standard; intermediate sizes by agreement
Precision grade	ISO 3290 G50 / G100 / G200 / G500
Spherical error	G100: 2.5 μm; G200: 5 μm (per ISO 3290)
Surface roughness	G100: ≤0.1 μm Ra; G200: ≤0.15 μm Ra
Corrosion resistance	Wet chlorine, hypochlorite, ferric/cupric chlorides, seawater, mixed acids

Hardness note: 32–48 HRC is achieved through cold working and thermal treatment. If your application requires a specific hardness window, state the target HRC/HV in the inquiry.

Application Fit

Best fit: chemical processing, pollution control (FGD), pharmaceutical equipment, oil & gas valves, marine/brine handling. Recommended: G100–G200, 3–50 mm; specify surface finish and material certificate for sealing or pharmaceutical use.

Not recommended for: high-load rolling contact (bearings, races, ball screws) — hardness is too low for rolling-contact fatigue; strongly oxidizing environments where C22/C4 may be more suitable; applications requiring zero magnetic permeability — cold working can introduce slight magnetic response.

Quality & Inspection

Inspection	Method / Availability
Chemical composition	Spectroscopic analysis; EN 10204 3.1 material certificate
Hardness	HRC or HBW; batch report
Diameter & spherical error	ISO 3290 per grade; batch report
Surface roughness	Stylus/optical; report on request
Visual integrity	100% visual for pits, cracks, lap marks

Certificate available on request

Ordering

Please provide: diameter, precision grade, hardness target (if critical), service medium, and required certification (EN 10204 3.1 / third-party inspection).