Description

Applications

Some typical applications are:

• Barge and tank truck liners
• Carburizing atmospheres
• Ethylene dichloride crackers
• Furnace trays, mufflers, hangers
• Gasoline stabilizer production
• MgCl2 evaporates
• Phenol condensers
• Soap manufacture
• Titanium dioxide
• Vegetable and fatty acid vessels
  

  Corrosion Resistance

  The high chromium content of alloy 600 raises its oxidation resistance considerably above that of pure nickel, while its high nickel content provides good corrosion resistance under reducing conditions.
  This alloy exhibits high levels of resistance to stress and salt water, exhaust gases, and most organic acids and compounds.

  Physical Properties	°F	British Units	°C	Metric Units
  Density	Room	0.304 lb./cubic in.	Room	8.43g/cubic cm
  Electrical Resistivity	70 200 400 600 800	40.6 microhm-in. 40.9 41.5 42.2 43.0	21 93 204 316 427	1.03 microhm-m 1.04 1.05 1.07 1.09
  Mean Coefficient of Thermal Expansion	70-200 70-400 70-600 70-800	7.4 microinches/in.-°F 7.7 7.9 8.1	21-93 21-204 21-316 21-427	13.3 x 10(-6)m/m·K 13.9 14.2 14.6
  Thermal Conductivity	70 200 400 600 800	103 Btn-in./ft².-hr.-°F 109 121 133 145	21 93 204 316 427	14.8 W/m·K 15.7 17.4 19.2 20.9
  Modulus of Elasticity	Room	30.0 x 10(6) psi	Room	207 GPa

  Heat Treatment

  Alloy 600 is not an age hardening alloy; cold working is the only available means of hardening. Softening by annealing begins at about 1600°F (871°C), and is reasonably complete after 10 to 15 minutes of heating at 1800°F (982°C). Above this temperature, grain growth may be objectionable, although very brief heating at 1900°F will cause complete softening without undue grain growth. Since the rate of cooling has no effect on the softening, the material may be water quenched or air cooled.Hot Working/Forging
  Low sulfur reducing furnace atmospheres should be used in forging. Major hot working should be done between 2300/1850°F, while light working may be continued as low as 1600°F. No hot working should be attempted between 1600/1200°F due to lower ductility in that range.Cold Working
  For higher properties, alloy 600 can be cold worked below 1200°F (649°C).

  Typical Mechanical Properties

  Typical Mechanical Properties
  Various forms and conditions

  Form and Condition	Tensile Strength		0.2% Yield Strength		% Elongation in 2″	% Reduction of Area	Rockwell Hardness
  Rod and Bar Cold-drawn Annealed As-drawn Hot rolled Annealed As-rolled Hot-finished Strip Annealed	80-100 105-150 80-100 85-120 80-120 80-100	552-689 724-1034 552-689 586-827 586-827 552-689	25-50 80-125 30-50 35-90 35-90 30-45	172-345 552-862 207-345 241-621 241-621 207-310	55-35 30-10 55-35 50-30 50-30 55-35	70-60 60-30 70-60 65-50 65-50 —-	65-85B 90B-30C 65-85B 75-95B 75-95B 84B max.

  Average Room Temperature Tensile Data

  Form	Condition	Ultimate Tensile Strength, Ksi (MPa)	Yield Strength at 0.2% offset, Ksi (MPa)	Elongation in 2 in. (50.8mm) or 4D, percent
  Sheet Plate Bar/Billet Sheet, Plate, Strip, Bar	Annealed Annealed Annealed Annealed	98 (676) 95 (655) 95 (655) 80 (550)*	42 (290) 41 (283) 41 (283) 35 (240)*	40 45 45 30*

  * – minimum

  Temperature		Tensile Strength		0.2% Yield Strength		% Elongation in 2″
  °F	°C	ksi	MPa	ksi	MPa
  600 800 1000 1200 1400 1600 1800	316 427 538 649 760 871 982	90.5 88.5 84.0 65.0 27.5 15.0 7.5	624 610 579 448 190 103 52	31.0 29.5 28.5 26.5 17.0 9.0 4.0	214 203 196 183 117 62 28	46 49 47 39 46 80 118

  Stress Rupture Properties

  Temperature		Stress to Produce Rupture in:
  °F	°C	10 hours		100 hours		1000 hours
  		ksi	MPa	ksi	MPa	ksi	MPa
  Cold Drawn, Annealed-3 Hours/1750°F (954°C)/Air Cooled
  1000 1200 1400 1600 1800 2000	538 649 760 871 982 1093	74 34 13 7.5 4.4 2.1	510 234 90 52 30 14	50 23 8.4 4.8 2.8 2.4	345 159 58 33 19 17	34 14.5 5.6 3 1.8 —	234 100 39 21 12 —
  Hot Rolled, Annealed-2 Hours/1650°F (899°C)
  1350 1600 1800 2000	732 871 982 1093	20 8.1 4.4 2.1	138 56 30 14	13.5 5.3 2.8 1.4	93 37 19 10	9.2 — 1.8 —	63 — 12 —
  Solution Annealed-20 Hours/2050°F (1121°C)/Air Cooled
  1350 1500 1600 1800 2000	732 816 871 982 1093	19 11.5 8 4.4 2.1	131 79 55 30 14	14 8 5.3 2.8 1.4	97 55 37 19 10	9.8 5.6 — 1.8 —	68 39 — 12 —

• Typical Elevated Temperature Tensile Properties
• Welding
  Alloy 600 can be joined by the usual welding , brazing, and soldering process.
• Machinability
  Alloy 600 is machinable in both the hot worked and annealed conditions. Because considerable heat is generated in machining this alloy, high-speed steel, cast nonferrous or cemented carbide tools should be used. The tools should be kept sharp.
  Lathe turning speeds with high-speed and nonferrous tools are 35/45 sfm (0.18/0.23 m/s); speeds with cemented carbide tools are 100/175 sfm (0.51/0.89 m/s). (This data should be used as a guide for initial machine setup only. The figures used are averages. On certain work, the nature of the part may require adjustment of speeds and feeds.)
  Sulfur-based oil should be used as a lubricant, but should be completely removed before the machined part is exposed to elevated temperatures, as in welding.
• Workability
• Average Physical Properties