Specifications

Product name:cr20ni30 alloy wire(Nickel chromium 3020)
Other names:cr20ni30 wire;cr20ni30;Nickel chromium 3020;Nichrome 3020

Product info

 

Product name: electric heating element resistance wire 80/20

Other names:   electric heating element resistance wire

   

High resistance alloy for electrical heating is main products of our company, suitable for making heating resistance element in metallurgy industry, chemical industry, mechanical industry, Glass and ceramic industry .It also applies to common resistance elements, such as regulator resistor and braking resistor.

 

Product features

 

1)  It has higher electrical resistance coefficient than other electrical resistances

2)   high temperature oxidation resistance

3)   well mechanical properties of the material quality

4)   good welding performance

5)   At any position of each spindle , uniformity of the resistant can’t be allowed to excess 4%

 

The description of products

 

1) The chemical composition:

 

 

Brand	Chemical composition				Si	Cr	Ni	Al	Fe
	C	P	S	Mn
	Not more than
Cr20Ni80	0.08	0.020	0.015	0.60	0.75-1.60	20.0-23.0	remain	≤0.50	≤1.0
Cr15Ni60	0.08	0.020	0.015	0.60	0.75-1.60	15.0-18.0	55.0-61.0	≤0.50	remain
Cr20Ni35	0.08	0.020	0.015	1.00	1.00-3.00	18.0-21.0	34.0-37.0	-	remain
Cr20Ni30	0.08	0.020	0.015	1.00	1.00-2.00	18.0-21.0	30.0-34.0	-	remain

 

 

2) Size and Tolerances

 

diameter	0.030-0.50	>0.050-0.100	>0.100-0.300	>0.300-0.500	>0.50-1.00	>1.00-3.00	EXECUTIVE STRANDARD
tolerance	±0.005	±0.007	±0.010	±0.015	±0.02	±0.03	GB/T1234-1995

 

 

 

 

 

Properties of Products

 

 When the product is at “M” status, should be followed the standard GB/T1234-1995

1) Resistivity:

 

 

 

 

 

 

 

 

2) If the diameter of wire is less than 1.00mm resistance per meter, the products should be followed the  standard GB/T1234/1995

3) At any position of each spindle, the resistance uniformity can’t be allowed to excess 4%.

4) Mechanical properties

The wires witch diameter is 0.50-6.00mm, after winding five rings, doesn’t appear stratification and crack.