Expansion Alloy Wire
Basic Info
Model No.: Kovar
Product Description
Model NO.: Kovar Material: Fe-Ni-Co Trademark: ToLand Alloy Origin: China Product Type: Wire Carbon Content: Low Carbon Specification: customize Description:
4J29(China); 29H, 29H-B, Techallony(Russia); Kovar, Rodar, Glasseal 29-17(United States); Nilo K, Telcaseal(Great Britain); KV-1, KV-2, KV-3(Japan); Dilver P0, Dilver P1(France); Vacon 12, Silvar 48(Germany).
Kovar Applications:
Electronic Package Base, Lids, Lead Frames & Glass to Metal Seals.
Industries Served:
Telecommunications, Aircraft & Aerospace Industry, Military and Defense, Semi-Conductor & Microwave.
Physical Constants:
Density: 8.17g/cm³
Specific gravity (g/cm3): 8.36
Melting point(º C): 1450
Melting heat(calorie/g): 64
Vapour pressure (μ M): 1× 10-6 (1000º C)
Specific heat(calorie/g/º C): 0.105 (0º C)
0.155 (430º C)
Heat conductivity(calorie/cm· Sec. · º C): 0.0395 (30º C)
0.0485(300º C)
Curie temperature (º C): 435
γ α Phase-transition temperature(º C): Below -80
Electrical performance:
Resistivity (μ Ω -mm): 49 (25º C)
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4J29(China); 29H, 29H-B, Techallony(Russia); Kovar, Rodar, Glasseal 29-17(United States); Nilo K, Telcaseal(Great Britain); KV-1, KV-2, KV-3(Japan); Dilver P0, Dilver P1(France); Vacon 12, Silvar 48(Germany).
Kovar Applications:
Electronic Package Base, Lids, Lead Frames & Glass to Metal Seals.
Industries Served:
Telecommunications, Aircraft & Aerospace Industry, Military and Defense, Semi-Conductor & Microwave.
Physical Constants:
Density: 8.17g/cm³
Specific gravity (g/cm3): 8.36
Melting point(º C): 1450
Melting heat(calorie/g): 64
Vapour pressure (μ M): 1× 10-6 (1000º C)
Specific heat(calorie/g/º C): 0.105 (0º C)
0.155 (430º C)
Heat conductivity(calorie/cm· Sec. · º C): 0.0395 (30º C)
0.0485(300º C)
Curie temperature (º C): 435
γ α Phase-transition temperature(º C): Below -80
Electrical performance:
Resistivity (μ Ω -mm): 49 (25º C)
Varieties | Steel type Specifications mm | Precision alloy | Resistance Alloys for electrical heating | Super alloy | Welding Wire | Corrosion resistant alloy | |
Rods | hot rolling rods | Φ8~38mm | available | available | available | ||
Cold-drawn rods | ≤50mm | available | available | available | |||
Forged rods | Φ38~350mm | available | available | available | |||
Wires | Round wires | Φ0.3~8mm | available | available | available | available | available |
Non-circle wires | Negotiation | available | available | available | |||
Strips | Cold rolling | 0.15~4×200mm | available | available | available | available | |
Hot rolling | 4~22×200mm | available | available | available | available | ||
Plates | Cold rolling | 0.5~4×1000×2000mm | available | available | available | ||
Hot rolling | 4~22×1000×2000mm | available | available | available | |||
tubes | Φ4~63×0.5~5mm | available | available | ||||
Executive standard: GB, GJB, HB, YB, ASTM, AMSE, negotiation and so on. |
Product Categories : Precision Alloy
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