Hot and cold processing of Inconel 601 Wire - Heanjia Super-metals Co., Ltd.

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Hot and cold processing of Inconel 601 Wire

The temperature range of hot formation of inconel 601 wire is 1600 to 2250oF or 870-1230oC. The hot processing operations consist of wider distortions should be made at temperature of 1900oF to 2250oF or 1040oC to 1230oC. The inconel alloy comprises of lower ductile nature at higher temperature of 1200 to 1600oF or650-870oC so it is not recommend to process in this temperature range. The minor processing is done at temperature lower than 1200oF or 650oC to obtain the higher tensile character.

The below table determines the effect of warm processing temperature on the mechanical features of inconel 601 wire:

Hot Working Temperature°F	Tensile Strength -ksi	Yield Strength-ksi	Elongation, %	Hardness, Rb
1600	109.1	86.0	11	97
1800	100.7	47.4	41	82
1920	103.0	53.0	36	84
2210	91.0	41.5	46	76

The material was hot formed from diameter of 152 mm to 102 mm squares and air quenched. The transverse materials from the mid of bars were employed for analysis. The rate of quenching subsequent the warm processing is not significant corresponding the thermal rupture.

In order to prevent the sensitization, though the alloy should be quenched immediately through the 1000oF to 1400oF or 540oC to 760oC temperature limits. The inconel 601 alloy wire is cold treated b following the traditional methods. The 601 wire's toughening rate is slightly more than the 600 alloy wire and 800 alloy wire rate. The below table shows the tensile character of cold drawn wire subsequent to different amounts of col reduction.

Cold reduction Temp. °F	Tensile Strength-ksi	Yield Strength-ksi	Elongation,%
45	174.0	166.0	5
68	192.0	185.0	4
77.5	197.0	183.0	4
83	202.0	193.0	3

The standard machining applications are readily made on inconel 601 wire. To get the superior machinability, it must be in the solution processed condition.

As the inconel 601 wire obtains the superior welding character and is easily connected by following the traditional welding products and methods. The welding forms are introduced with the higher joint efficiency and resistance to heat. The choice of welding form is based on the service conditions followed to fabricate the inconel alloy parts for exposure. In the below table, standard instructions for choosing the welding form are provided:

Service Conditions	Shielded Metal Arc Welding	Gas Tungsten Arc Welding	Gas Metal Arc Welding	Submerged Arc Welding
Up to 1800°F (980°C)	INCO-WELD A WeldingElectrode or INCONEL Welding Electrode 117	INCONEL Filler Metal 82,601, or 617	INCONEL Filler Metal 82 or617	INCONEL Filler Metal 82 andINCOFLUX 4
1800°F (980°C) to 2100°F(1150°C)	INCONEL Welding Electrode117	NCONEL Filler Metal 601 or617	INCONEL Filler Metal 617	Not Suggested
Above 2100°F (1150°C)	Not Suggested	INCONEL Filler Metal 601	Not Suggested	Not Suggested
Exposure to H2 S or SO2 at all temperatures	Not Suggested	INCONEL Filler Metal 601	Not Suggested	Not Suggested

The tensile character of inconel 601 wire welded joints by the sheath metal arc, gas tungsten arc and gas metal arc procedures is provided in the below table:

Temperature °F	Tensile Strength ksi	Yield Strength ksi	Fracture Location
70	98.1	54.2	Weld
600	85.9	42.4	Weld
1000	80.7	41.4	Weld

The comparison of rupture potential of inconel 601 wire with the inconel 617 welding forms and inconel 601 wrought materials is provided in the below table:

Welding Product	Temperature °F	Stress for Rupture in (ksi)
Welding Product	Temperature °F	100 hr	1000 hr	10,000 hr
INCONEL Filler Metal 82	1000	60	51	39
INCONEL Welding Electrode117 & INCONEL Filler Metal 617	1000	50	44	38

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