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Electrothermal alloy

Cr30Ni70

Quality stability: implement the whole process quality monitoring, meticulous and all-round inspection

Reasonable price: efficient internal cost control, reduce expenditure and benefit customers

Fast delivery: advanced production line, sufficient stock, shortened delivery time

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Cr30ni70 (executive standard GB / t1234-2012)

Chemical composition of cr30ni70:

alloy%chromiumphosphorussulfurnickelaluminumcarbonmanganesesiliconiron
Cr30Ni70minimumTwenty-eight

more than


0.75
maximumThirty-onezero point zero two zerozero point zero one fiveamountzero point five zerozero point zero eightzero point six zeroOne point sixOne

Physical properties of cr30ni70:

(a)8.1 g/cm31.2.2.2.2.;2.2.2.2.1.18.m
29076;-28857;1370-1410-8451;23548;`28909;`31995;`25968;14 W/*65288m-K-65289

Cr30Ni70

1.2.2.2.2.2.25239;*25289;*24378;*24230
b (Mpa)
*24310;*20280;*29575;
A5%
Cr30Ni70,StrengthM

This alloy has the following properties:

70ni-30cr has high content of nickel and chromium and low content of iron. It has good oxidation resistance, thermal strength and low positive temperature coefficient below 1050 ℃. At room temperature, it has high plasticity, cold stamping and welding properties. The alloy is single-phase austenite after solution treatment, and its structure is stable in use.

Metallographic structure of cr30ni70:

Cr30ni70 alloy is single-phase austenite structure

The application fields of cr30ni70 include:

1. As a heating element, it is mainly used for periodic heat treatment furnace with temperature below 1050 ℃, such as carburizing furnace, bell jar furnace, etc., but it is rarely used

2. It can also be used as high-quality heat-resistant steel structure parts, such as shaft, burning frame, etc

Products of our company:

Wire rod, flat strip, forming furnace bar, forging bar, hot rolling bar, cold and hot plate, tube, machining finished product


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