Nilo 42 / Alloy 42/ Feni 42 Low Expansion Alloy Wire

• Application: Aviation, Electronics, Industrial
• Standard: JIS, GB, ASTM, AISI
• Purity: Fe 36% Balance Ni
• Alloy: Alloy
• Type: Nickel Alloy Wire
• Powder: Not Powder
• Model NO.: Alloy 42
• Grade: Alloy 42
• Tensile Strength: 490n/mm
• Density: 8.1g/cm3
• Melting Point: 1430 Degree
• Elongation: 43%
• Hardness: Hrb 80
• Electric Resistivity: 0.61μΩ·m
• Transport Package: Wire on Spool Into Cartons
• Specification: base on customer′s requirement
• Trademark: Allotech
• Origin: China
• HS Code: 75052200
• Production Capacity: 15 Ton Each Month

Product Description

Product Description

Alloy 42 is a low expansion alloy which is very similar to Invar 36. It has a low expansion up to about 300ºC. Principally used as strip for semiconductor lead frames in integrated circuits and bi-metal strip, the alloy can be also used in ceramic to metal seals with alumina and the glass bulb envelope to metal seals.
A nickel-iron controlled-expansion alloy containing 41% nickel. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 300°C.

Application

Alloy 42 (Nilo 42) is used for semiconductor lead frames in integrated circuits, bi-metal thermostat strip, thermostat rods, for ceramic-to-metal seals with alumina ceramics, and various glass-to-metal seals such as the core of copper-clad-wire for sealing into glass envelopes of electric bulbs, radio valves, television tubes and fluorescent lights.
 

Product Details

 

Chemical composition:

Grade	C%	P%	S%	Mn%	Si%	Al%	Co%	Ni%	Fe%
Alloy 42	Max 0.05	Max 0.020	Max 0.020	Max 0.80	Max 0.30	Max 0.10	Max 1.0	41.0-42.5	Bal.

Specifications:

Grade	UNS	Werkstoff Nr.
Alloy 42	K94100	1.3917

Physical Properties:

Grade	Density	Melting Point	Electric Resistivity
Alloy 42	8.12 g/cm3	1440°C	0.61μΩ·m

 
Mechanical Properties:

Grade	Tensile Strength	Yield Strength  N/mm²	Elongation (%)
	N/mm²	(0.2% Offset)
Alloy 42	490	250	43

 
Coefficient of Expansion

Grade	Linear Coefficient of Thermal Expansion ā,10-6/ºC
	20-100ºC	20-200ºC	20-300ºC	20-400ºC	20-450ºC	20-500ºC	20-600ºC
Alloy 42	5.6	4.9	4.8	5.9	6.9	7.8	9.2

 
Available Specifications:

Pipe Smls	Tube  Smls	Sheet/Plate	Bar	Wire
ASTM B  ASME SB 163	B163	ASTM F30	ASTM B  ASME SB 166,	ASTM F29

Available forms:
Alloy 42 wire, bar, rod, strip, forging, plate, sheet, tube, fastener and other standard forms are available.

color box size	master carton size	G.W N.W	pcs/CTN
51x21xt5cm	53x43x32cm	20/18	4