R.K. Steels (India)
Home
About us
Technical Data
Products
Services
Contact us
Feedback
 
 
Welcome to R.K.Steels

HASTELLOY C-4 COMPOSITION

Find below the search results for the material you've specified. Please note here this information is NOT to be used for design purposes, and in no event shall MSO be liable for any damages arising from the misuse of this information

Super Alloy HASTELLOY(r) C-4 alloy

Related Metals:

Nicrofer 6619 hMo(tm)
HASTELLOY(r) C-4 alloy(tm)                                    

Specifications:

ASTM B574
ASTM B575
ASTM B619
ASTM B622
ASTM B626
DIN 2.4610
UNS N06455

Chemistry Data

Carbon

0.015 max

Chromium

14 - 18

Cobalt

2 max

Iron

3 max

Manganese

1 max

Molybdenum

14 - 17

Nickel

Balance

Phosphorus

0.04 max

Silicon

0.08 max

Sulphur

0.03 max

Titanium

0.7 max

General Information

Principal Design Features

Alloy C-4 is a wrought nickel-chromium-molybdenum alloy for high temperature use with good corrosion resistance.


Applications

This alloy is used to manufacture chemical process equipment, especially for process use at high temperatures where stainless steels do not have adequate strength and/or corrosion resistance.


Machinability

Machinable by conventional techniques.


Forming

Readily formed by conventional methods.


Corrosion Resistance

Excellent cold and hot corrosion resistance to a great variety of chemical media, especially chlorine media. Media Concentration & Temp. Corrosion Rate mils per year Nitric acid 10% boiling 7.1 as welded


Welding

All of the common methods of welding apply to this alloy. However excessive heat input should be avoided and submerged arc or oxy-acetylene welding should not be used as they can degrade corrosion resistance.


Heat Treatment

Solution annealed at 1950 F and rapid quench. This is the normal condition in which product forms are supplied.


Forging

The alloy can be hot forged at temperatures of 2150 F to 1750 F.


Hot Working

Can be hot worked or hot extruded similar to stainless steels.


Cold Working

Readily cold worked by conventional means.


Annealing

Solution anneal at 1950 F followed by rapid quench.


Aging

May be aged (after solution heat treatment) at 1200 F for 10 hours to somewhat improve ductility and yield strength without adversely affecting the ultimate tensile strength.


Hardening

Hardened by cold working only, but normally used in the solution annealed condition.


Physical Data

Density (lb / cu. in.)

0.312

Specific Gravity

8.64

Specific Heat (Btu/lb/Deg F - [32-212 Deg F])

0.102

Electrical Resistivity (microhm-cm (at 68 Deg F))

748

Melting Point (Deg F)

2600

Thermal Conductivity

79

Mean Coeff Thermal Expansion

6

Modulus of Elasticity Tension

30.8

Mechanical Data

Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

70

Tensile Strength

116

Yield Strength

61

Elongation

54

Rockwell

B92


Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

400

Tensile Strength

98

Yield Strength

46

Elongation

55


Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

600

Tensile Strength

98

Yield Strength

44

Elongation

59


Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

800

Tensile Strength

93

Yield Strength

44

Elongation

63


Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

1000

Tensile Strength

94

Yield Strength

43

Elongation

55


Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

1200

Tensile Strength

83

Yield Strength

42

Elongation

50


Form

Sheet

Condition

Heat treated at 1950 F(1066 C)

Temper

1400

Tensile Strength

70

Yield Strength

38

Elongation

44

Copyright 2005 R.K.Steels (India). All rights reserved