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Heat resistant steel

OCr18Ni10Ti

質(zhì)量穩(wěn)定：實行全過程質(zhì)量監(jiān)控，細致入微，全方位檢測

價格合理：高效內(nèi)部成本控制，減少開支，讓利客戶

發(fā)貨快捷：先進生產(chǎn)流水線，充足的備貨，縮短了交貨期

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SUS321 (American Standard SATM a276 is equivalent to national standard 0Cr18Ni10Ti)

Chemical composition of 321:

alloy

%

carbon

nickel

chromium

manganese

silicon

phosphorus

sulfur

titanium

321

minimum

 

9

17

 


 

 

5*C%

maximum

0.08

12

19

2.0

1.0

0.045

0.030

0.70

Physical properties of 321:

density

7.92g/cm3

melting point

1398-1446℃

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

Alloy state

tensile strength
σb (Mpa)

yield strength
σ0.2 (Mpa)

Elongation
A5 %

321

≥515

≥205

≥30

Main characteristics of this alloy：

321 is a very stable stainless steel. When the temperature reaches 427-816 ° C and chromium carbide precipitates, it can still maintain good resistance to intergranular corrosion. Due to the addition of titanium in the composition, 321 alloy can still maintain stability when chromium carbide is formed

Metallographic structure of 321

321 alloy is austenite matrix in solution heat treatment state.

321 application areas：

It is a kind of alloy material with high temperature strength and high temperature oxidation resistance, which is widely used in many fields

1. Furnace tube, furnace tank and mesh belt of heat treatment furnace

2. Shafts, structural parts and containers with temperature resistance below 850 ℃

3. Anchors and pins of refractories widely used in cement kilns and utility boilers

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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