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Carbon		0.02 max
Chromium		1 max
Cobalt		1 max
Iron		2 max
Manganese		1 max
Molybdenum		27 - 29
Nickel		Balance
Phosphorus		0.04 max
Silicon		0.1 max
Sulphur		0.03 max

Principal Design Features		A wrought nickel-molybdenum alloy that can be used in the as welded condition. It is highly resistant to all concentrations and temperatures of hydrochloric acid. Also resistant to stress corrosion cracking and pitting. Because of the high molybdenum content the alloy is relatively expensive.

Applications		Chemical process equipment.

Machinability		Machinable by conventional techniques.

Forming		May be formed by standard techniques as used with stainless steels.

Welding		The alloy is readily weldable by all methods and may be used in the as welded condition.

Heat Treatment		Solution treated at 1950 F and rapid quenched. This is the normal condition in which the product forms are furnished and used. Bright annealed product forms (sheet & strip) are solution treated at 2100 F and then cooled in a hydrogen atmosphere to prevent oxidation of the bright surface.

Forging		Readily forged at temperatures 2250 F to 1800 F.

Hot Working		Can be hot worked by conventional means.

Cold Working		Can be readily cold worked by conventional means.

Annealing		Anneal following extensive work hardening due to cold working by 1950 F soak followed by rapid quench. Note that bright finish parts must be solution annealed and rapid cooled in an inert (argon gas) or reducing (hydrogen) atmosphere to prevent surface oxidation during heating and cooling.

Hardening		Hardens by cold working not heat treatment.

Physical Data : [top]

Density (lb / cu. in.)	0.33
Specific Gravity	9.22
Specific Heat (Btu/lb/Deg F - [32-212 Deg F])	0.093
Electrical Resistivity (microhm-cm (at 68 Deg F))	825
Melting Point (Deg F)	2600
Thermal Conductivity	85
Mean Coeff Thermal Expansion	5.7
Modulus of Elasticity Tension	31.4

Form		Plate
Condition		Heat treated at 1950 F(1066 C)
Temper		70
Tensile Strength		131
Yield Strength		60
Elongation		60
Rockwell		B94
Form		Plate
Condition		Heat treated at 1950 F(1066 C)
Temper		392
Tensile Strength		127
Yield Strength		53
Elongation		59
Form		Plate
Condition		Heat treated at 1950 F(1066 C)
Temper		572
Tensile Strength		122
Yield Strength		49
Elongation		59
Form		Plate
Condition		Heat treated at 1950 F(1066 C)
Temper		752
Tensile Strength		120
Yield Strength		47
Elongation		60
Form		Sheet
Condition		Heat treated 2100F (1149C) Hydrogen cool
Temper		70
Tensile Strength		133
Yield Strength		58
Elongation		55
Rockwell		B97
Form		Sheet
Condition		Heat treated at 1950 F(1066 C)
Temper		70
Tensile Strength		128
Yield Strength		60
Elongation		60
Rockwell		B95
Form		Sheet
Condition		Heat treated at 1950 F(1066 C)
Temper		392
Tensile Strength		125
Yield Strength		51
Elongation		58
Form		Sheet
Condition		Heat treated at 1950 F(1066 C)
Temper		572
Tensile Strength		121
Yield Strength		49
Elongation		59
Form		Sheet
Condition		Heat treated at 1950 F(1066 C)
Temper		752
Tensile Strength		118
Yield Strength		45
Elongation		60