While not the most resistant alloy for nitriding environments at traditional 1000°F to 1200°F (540°C to 650°C) temperatures, HAYNES^® 214^® alloy exhibits outstanding resistance at the higher temperatures where its protective Al₂O₃ scale can form, even in extremely low oxygen environments. Tests were performed in flowing ammonia at 1200, 1800 and 2000°F (650, 980 and 1095°C) for 168 hours. Nitrogen absorption was determined by technical analysis of samples before and after exposure, and knowledge of the exposed specimen area.

	Temp., °F	British Units	Temp., °C	Metric Units
Density	Room	0.291 lb/in.³	Room	8.05 g/cm.³
Melting Temperature	2475-2550		1355-1400

Electrical Resistivity	Room	53.5 microhm-in.	Room	135.9 microhm-cm
	200	53.9 microhm-in.	100	136.9 microhm-cm
	400	53.9 microhm-in.	200	136.9 microhm-cm
	600	53.9 microhm-in.	300	136.9 microhm-cm
	800	54.3 microhm-in.	400	137.7 microhm-cm
	1000	54.3 microhm-in.	500	137.9 microhm-cm
	1200	53.5 microhm-in.	600	136.8 microhm-cm
	1400	51.6 microhm-in.	700	133.7 microhm-cm
	1600	49.6 microhm-in.	800	129.2 microhm-cm
	1800	48.0 microhm-in.	900	124.9 microhm-cm
	1900	47.6 microhm-in.	1000	121.6 microhm-cm
	2000	47.6 microhm-in.	1050	120.9 microhm-cm
	2100	48.0 microhm-in.	1100	121.0 microhm-cm
	2200	48.4 microhm-in.	1150	121.9 microhm-cm
	-	-	1200	122.9 microhm-cm

Mean Coefficient of Thermal Expansion	70-400	7.4 microinches/in.-°F	25-200	13.3 x 10^-6m/m-°C
Mean Coefficient of Thermal Expansion	70-600	7.6 microinches/in.-°F	25-300	13.6 x 10^-6m/m-°C
	70-800	7.9 microinches/in.-°F	25-400	14.1 x 10^-6m/m-°C
	70-1000	8.2 microinches/in.-°F	25-500	14.6 x 10^-6m/m-°C
	70-1200	8.6 microinches/in.-°F	25-600	15.2 x 10^-6m/m-°C
	70-1400	9.0 microinches/in.-°F	25-700	15.8 x 10^-6m/m-°C
	70-1600	9.6 microinches/in.-°F	25-800	16.6 x 10^-6m/m-°C
	70-1800	10.2 microinches/in.-°F	25-900	17.6 x 10^-6m/m-°C
	70-2000	11.1 microinches/in.-°F	25-1000	18.6 x 10^-6m/m-°C
			25-1100	20.2 x 10^-6m/m-°C

Thermal Conductivity	Room	83 Btu-in./ft.² hr.-°F	Room	12.0 W/m-K
	200	88 Btu-in./ft.² hr.-°F	100	12.8 W/m-K
	400	99 Btu-in./ft.² hr.-°F	200	14.2 W/m-K
	600	112 Btu-in./ft.² hr.-°F	300	15.9 W/m-K
	800	132 Btu-in./ft.² hr.-°F	400	18.4 W/m-K
	1000	153 Btu-in./ft.² hr.-°F	500	21.1 W/m-K
	1200	175 Btu-in./ft.² hr.-°F	600	23.9 W/m-K
	1400	200 Btu-in./ft.² hr.-°F	700	26.9 W/m-K
	1600	215 Btu-in./ft.² hr.-°F	800	29.7 W/m-K
	1800	225 Btu-in./ft.² hr.-°F	900	31.4 W/m-K
	2000	234 Btu-in./ft.² hr.-°F	1000	32.7 W/m-K
	2200	255 Btu-in./ft.² hr.-°F	1100	34.0 W/m-K
			1200	36.7 W/m-K

Specific Heat	Room	0.108 Btu/lb.-°F	Room	452 J/kg-K
	200	0.112 Btu/lb.-°F	100	470 J/kg-K
	400	0.118 Btu/lb.-°F	200	493 J/kg-K
	600	0.124 Btu/lb.-°F	300	515 J/kg-K
	800	0.130 Btu/lb.-°F	400	538 J/kg-K
	1000	0.136 Btu/lb.-°F	500	561 J/kg-K
	1200	0.154 Btu/lb.-°F	600	611 J/kg-K
	1400	0.166 Btu/lb.-°F	700	668 J/kg-K
	1600	0.173 Btu/lb.-°F	800	705 J/kg-K
	1800	0.177 Btu/lb.-°F	900	728 J/kg-K
	1900	0.178 Btu/lb.-°F	1000	742 J/kg-K
	2000	0.179 Btu/lb.-°F	1100	749 J/kg-K
	2200	0.180 Btu/lb.-°F	1200	753 J/kg-K

Haynes International, Inc. 800-354-0806 765-456-6012

HAYNES® 214® alloy Information

A nickel-chromium-aluminum-iron alloy with outstanding resistance to oxidation.

HAYNES^® 214^® alloy Information