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	PRODUCT DATA of A286

Material

A286

General Information

This super alloy is can be used at temperatures up to 700 C. Its main uses are highly loaded fasteners

Chemical Composition

25% Ni, 15% Cr, 2% Ti, 1.5% Mn, 1.3% Mo, 0.3% V, Rem. Fe

Name of Manufacturer

Boehler Edelstahl GMBH & Co KG Mariazeller Straße 25, A-8605 Kapfenberg, Austria +43-3862/20-7181 +43 3862/20-7576 info@bohler-edelstahl.com www.bohler-edelstahl.com Maher Ltd Edward Street, Sheffield S3 7GD, UK +44 (0)114 290 9200 +44 (0)114 290 9290 www.maher.co.uk

	EXPERIENCE IN PRACTICE

Development Status

Commercial Product

Cost Range

Medium

Equivalent Designations

Werk. No. 1.4980, Z6 NCT 25/15, UNS S66286, AISI 660, Z3NCT25, A 286

Space Experience

Extensive

	PHYSICAL PROPERTIES

Specific Gravity

7.92 @RT

Phase changes

Precipitation of Ni3Ti occures between 650 and 815 C

Magnetic Properties

Nonmagnetic

	ELASTIC PROPERTIES

Tensile Modulus

201 GPa

Shear Modulus

71.7 GPa

Poisson Ratio

0.306

	ELECTRICAL PROPERTIES

Electrical Volume Resistivity

9.1e-7 ohm.m

	THERMAL PROPERTIES

Thermal Conductivity

13 W/m.K

Thermal Expansion Coefficient

16.9 μstrain/°C

Specific Heat

0.461 J/g.K

Melting Range

1370 to 1430 °C

	RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY

Corrosion/Thermal

High resistance up to 700°C.

Stress Corrosion Status

High Resistance to SCC: Table 1 Remark: acc. to ECSS-Q-ST-70-36C Data Quality: Design Data

EMF vs SCE

-0.07 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data

Bimetallic Corrosion

Can be connected without any restriction to: Cr, Au, Pt, C, Rh, Ag, Gun-metal, P-bronzes, Sn-bronzes, Ti+alloys Can be connected in a non-controlled environment to the above and Cd, Cu, Brasses, Ni, monel, inconel, N-Mo alloys, 400 series stainless steel Can be connected in a clean room environment to above and Al-Cu alloys, Cu-Ni alloys, Al-bronzes, Si-bronzes Needs specific measures: All others Test:ECSS-Q-ST-70C Rev.1 Table 5.1 Data Quality: Design Data

	FLUID SYSTEMS COMPATIBILITY

Gaseous Oxygen (GOX)

Meets the mechanical impact requirements. No batch test required.

Liquid Oxygen (LOX)

Meets the mechanical impact requirements. No batch test required.

Nitrogen Tetroxide (N2O4)

SCC susceptibility is low and no fluid decomposition

Hydrazine (HDZE)

SCC susceptibility is low and no fluid decomposition

	SPECIAL RECOMMENDATIONS

Special Recommendations

Suitable for fasteners.