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Heat resistant steel

OCr25Ni20Si2

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

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Sus314 (American Standard SATM a276 & nbsp; equivalent to national standard 0cr25ni20si2)

Chemical composition of 314:

alloy%carbonnickelchromiummanganesesiliconphosphorussulfur
Three hundred and fourteenminimum
NineteenTwenty-three
1.5

maximumzero point zero eightTwenty-twoTwenty-sixTwoThreezero point zero four fivezero point zero three zero

Physical properties of 314:

density7.98 g/cm3
melting point1395-1435℃

314 solid solution state, mechanical properties of the alloy at room temperature:

Alloy statetensile strength
σb (Mpa)
yield strength
σ0.2 (Mpa)
Elongation
A5 %
314≥515≥205≥30

Main characteristics of this alloy:

314 belongs to austenitic type heat-resistant and corrosion-resistant stainless steel, which has the properties of all austenitic stainless steels. Because it contains 2% silicon element and has strong high temperature and oxidation resistance, it is also called the representative of heat-resistant steel, with the maximum service temperature of 1200 ℃. Due to the high content of nickel (Ni) and chromium (CR), it has good oxidation resistance, corrosion resistance, acid alkali resistance and high temperature resistance

Metallographic structure of 314

314 alloy is austenite matrix in solution heat treatment state.

314 application fields include:

It is a kind of alloy material with high-temperature strength and high-temperature oxidation resistance, mainly used for making mesh belt: < br clear = "all" / > 1. Furnace tube, furnace tank and mesh belt of heat treatment furnace

2. Shafts, structural parts and containers with temperature resistance below 1150 ℃

Products of our company:

Cold and hot plate & nbsp; strip & nbsp; tube & nbsp; wire & nbsp; forging Bar & nbsp; hot rolling bar & nbsp; machined products


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