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Iron-Nickel-Cobalt Alloy Bar, ASTM F15, Kovar

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USD $20 - $25 / Kilogram

50 Kilograms(Min.Order)

Supply Ability 500 Metric Ton / Metric Tons per Month
Port Shanghai
Payment Terms:T/T

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Product Details

Brand Name:	Brilliance	Place of Origin:	China	Model Number:	BL-0134
Type:	Nickel Bar	Application:	Precision Instruments	Ultimate Strength (≥ MPa):	700
Grade:	Iron-nickel-cobalt Alloy	Elongation (≥ %):	32	Powder Or Not:	Not Powder
Ni (Min):	28.5-29.5%

Product Description

Kovar alloy is a vacuum melted, iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow limits to assure precise uniform thermal expansion properties. Extensive quality controls are employed in the manufacture of this alloy to ensure uniform physical and mechanical properties for ease in deep drawing, stamping and machining.

Our production process for Kovar alloy is first melted using Vacuum Induction Melting (VIM) techniques. A secondary melt operation, Electro Slag Remelt (ESR), is then employed to further remove impurities and improve overall homogeneity.

Commerical Trdae Name	ASTM F15, NILO K, Pernifer 2918, Rodar and Dilver P1
Material	Iron-Nickel-cobalt Alloy
Specification	ASTM F15
Thermal Expansion	4.6 to 5.2 at (30 to 400 ℃)
Surface Finish	Ground Surface
Process	VIM +ESR Melting
Application	hard glass to metal seals
Related Specifications & Registered Names
Kovar © Nicoseal © Nicosel © Rodar © Telcoseal © Sealvar © Alloy 29-17 © Nilo K © Dilver © Pernifer 29-18 ©	UNS K94610 ASTM F 15 AMS 7726 AMS 7727 AMS 7728 MIL-I-23011 class 1. Werkstoff Nr. 1.3981 DIN 17745 AFNOR NF A54-301 S.E.W. 385

FORMS OF SUPPLY
ROD	Dia.20 to 280mm,Length2000mm,Max	Surface Finish: Black, De-scaling & Ground Surface
STRIP/SHEET	T0.1 to 3.0mm ,width300mm,Max	Temper Name : Hard / Annealed
PLATE	T3.0 to 40.0mm,Width1000mm,Max	Surface Finish: Black / Bright

Permissible Variations for Rod
Black Surface	De-scaling Surface	Ground Surface
Diameter Tolerance ±1.0mm	Diameter Tolerance :±0.5mm	Diameter Tolerance :±0.1mm
Length Tolerance +5mm	Length Tolerance: +2.0mm	Length Tolerance: +1.0mm

Product Datasheet

TABLE 1 Chemical Composition (Weight,%)
Ni	28.5-29.5
Co	16.8-17.8
Si,Max	0.20
Mn,Max	0.50
C,Max	0.04
Al,Max	0.10
Mg,Max	0.10
Zr,Max	0.10
Ti,Max	0.10
Cu,Max	0.20
Cr,Max	0.20
Mo,Max	0.20
Fe	Balance

TABLE 2 Physical Properties
Density, lb/cu in	0.302
Specific Gravity	8.36
Curie Temp,°C	435
Melting Point,°C	1449
Electrical Resistivity,mm2/m	49
Thermal Conductivity,BTU-in/sq. ft-hr-	120
Specific Heat ,ppm/°C (25°C to 450°F)	5.3

TABLE 3 Tensile Strength for Sheet & Strip
Tmper Designation	Temper Nam	Tensile Strngth,MPa
A	Annealed	570,Max
B	¹/4 Hard	520 to 630
C	Half Hard	590 to 700
D	³/4 Hard	660 to 770
E	Hard	700,Min

TABLE 4 Tensile Strength for Wire & Rod
Tmper Designation	Tensile Strngth,MPa
A	585,Max
B	585 to 725
C	655 to 795
D	725 to 865
E	865,Min

TABLE 5 Average Linear Coefficient of Thermal Expansion
30 to 400 ℃	4.6 to 5.2 µm/m -°C
30 to 450 ℃	5.1 to 5.5 µm/m -°C

TABLE 6 Machanical Property
Tensile Strength MPa	Yield Strength MPa	Elongation % in 50mm	Hardness HRC	Modulus of Elasticity MPa
518	276	30	80	207

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Changzhou Brilliance Special Steel Co., Ltd.: Contact nameDavid
Chat Now; Phone86-519-89986880; AddressXinbei Changzhou,Jiangsu

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