The dependence of the resistance of the nichrome to the temperature
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The electrical resistance of the nichrome
With increasing temperature the resistivity of nichrome increases. When heated, the increase of the resistance exceeds 10%, which should be considered by manufacturers in the attached specifications. These changes apply to the temperature range 25−1200°C. the dependence of the electrical resistance of the nichrome to the temperature is not a linear value, unlike ferrochrome, which is composed of a large percentage of iron). If the alloy is a low iron content, the resistivity in the temperature range 450−900° C it decreases, and then increases again.
Stabilization of the electrical resistance
To stabilize the parameters of resistivity, where appropriate, instead of the traditional nichrome alloys or brands CR20NI80 H15N60 use imported alloys of similar purpose, in particular, Nikrothal 80.
The dependence of the resistivity (μω·m) in temperature
|Temperature, °C||H15N60||CR20NI80-H||Nikrothal 80|
CMH implements at cost-competitive prices, various nichrome alloys. Supplier of guaranteed delivery of products anywhere in. set by the client.
|Aggregated data from GOST 12766.1−90, GOST 12766.2−90, GOST 10994−74,|
14−1-3224−81 TU, TU 14−1-3225−81, DIN 17470
melting point, deg. With
|The maximum working temperature in air depending on the diameter||Hard-ness HB||(Nominal) / of the Normalized electrical resistivity of the wire depending on the diameter,
μω x m
|Regarding elongation, %,
not less than
|Rupture strength, kgf/mm. kV|
|0.4 mm||1.0 mm||3.0 mm||>6 mm||0.1 — 0.5 mm||0.5 — 3.0 mm||> 3.0 mm|
|CR20NI80-H||8,40||1400||1000||1100||1150||1200||140−150||1,03 — 1,13||1,06 — 1,16||1,07 — of 1.18||20||102|
|CR20NI80||8,40||1400||1000||1100||1150||1200||140−150||1,03 — 1,13||1,06 — 1,16||1,07 — of 1.18||20||102|
|H15N60-H||8,20||1390||950||1000||1075||1125||140−150||1,03 — 1,13||1,06 — 1,16||1,07 — of 1.18||20||102|
Are you interested in the dependence of the resistance of the nichrome to the temperature? To buy at an affordable price nichrome provider offers KMZ. The vendor prompt shipment of products to any point established by the customer.
To buy nichrome provider KMZ can at an affordable price. The price is formed based on the European standards of production. \To buy nichrome at a reasonable price, you can wholesale or retail. Regular customers can take advantage of the discount system of discounts from the company KMZ.
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