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Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964

Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964

Haynes 25 (L-605), also designated as UNS R30605 and W.Nr. 2.4964, is a cobalt-nickel-chromium-molybdenum alloy known for its excellent corrosion resistance and high strength. The alloy combines superior resistance to chloride stress corrosion cracking, pitting, and crevice corrosion, along with good mechanical properties across a wide temperature range, making it ideal for aggressive chemical and marine environments.

Haynes 25 is commonly used in chemical processing, seawater handling, heat exchangers, marine equipment, and pollution control systems. Available in plates, sheets, tubes, bars, and fabricated components, it provides reliable performance in applications requiring both corrosion resistance and structural integrity under harsh conditions.

Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964
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Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964 Chemical Compositions

Carbon (C)

0.05-0.15 %

Manganese (Mn)

1.0-2.0 %

Silicon (Si)

0.40 % max.

Chromium (Cr)

19.0-21.0 %

Nickel (Ni)

9.0-11.0 %

Tungsten (W)

14.0-16.0 %

Phosphorus (P)

0.040 % max.

Sulfur (S)

0.030 % max.

Iron (Fe)

3.0 % max.

Cobalt (Co)

Balance

Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964 Physical Properties

Density

lb/in3

0.335

g/cm3

9.27

Melting Range,

°F

2426-2570

°C

1330-1410

Specific Heat at 70°F,

Btu/lb°F

0.092

at 21 °C, J/kg°C

385

Permeability at 200 oersted

1.002

Thermal Conductivity,

Btu•in/ft2•h•°F

65

W/m•°C

9.4

Electrical Resistivity (75°F)

ohm•circ mil/ft

533.2

(24°C), microohm-m

0.886

Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964 Mechanical Properties

Form

Temperature

Dimensions

Yield Strength
0.2 %

Tensile Strength

Rm

Elongation

A

Hardness Brinell

mm

in

MPa

ksi

MPa

ksi

%

Max HB

Strip

Room Temperature

0.02-2.5

0.01-0.1

380

58

900

130

Transverse 30

282

Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964 Standard Specifications

Sheet, plate, strip Billet, rod, bar Forgings Bare Welding Rods and Wire Coated Electrodes
AMS 5537  AMS 5759 AMS 5759 AMS 5796 AMS 5797

Standard product forms of Haynes 25 (L-605)/ UNS R30605/ W. Nr. 2.4964 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at [email protected] for full information. 

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