round steel, round bar N10276,NS334,ASTM:HastelloyC276,GB:00Cr15Ni60Mo16W5Fe5,N10276

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Product Description:

1.Product Standard:ASME B574,SME B574,DIN17752,DIN400,ASME 1924,ISO 9723

2. Size: Diamter Φ8-Φ300MM  Length 500-8000MM

3. Surface Condition:Lathe polished,descaling,black,acid-producing white,drawn-bright.

4.Quality Assurance:Forging rolled round bars can past fist level standard of UT test.


Products Introduction:

NS334,ASTM:HastelloyC276,GB:00Cr15Ni60Mo16W5Fe5,N10276, W.Nr.2.4819 is Nickel molybdenum - chromium - iron - tungsten alloy.


Main Features

Forging Quality:

Alloy 276 can be processed and formed as austenitic stainless steel in the same standard.However,its hardness is much bigger than the traditional austenitic stainless steel.So it needs more load to deform and during cold-processing,its      hardening rate is more faster than austentic stainless steel.The two factors(high initial strength and cold hardening speed)make the intermediate annealing so neceaasry when the cold-deforming range is wide.


Welding Property:

The welding property of alloy 276 is similar to the austenitic stainless steel.When choosing the welding method,the technique, which can make the corrosion level minimized,should be adopted.Gas-tungsten arc welding,gas metal arc welding, Gas protect metal extremely welding and electric resistance welding methods has few damage to the corrosion resistance of welding points and Hot metamorphic parts.Oxy welding method cannot be adpoted because the carbon may be collected from the oxy flame and underwater arc solvent with carbon and silicon cannot be used too sice same collection phenomenon will happen. The lowest levels of heat input should be consistent with moderate penetrates to avoid causing thermal crack.


Heat treatment


All our alloy 276 procuts are taken solution heat treatment,which including the heat treatment and  rapid chilling in the range of 1900 degrees Fahrenheit to Celsius 2100 degrees (10.4 degrees - 1150 degrees)It needs to take 2 seconds or less than 2 seconds to cool rapidly into black in order to keep its best corrosion intensity.Stress relieving heat treatment doesnot work so well.When stress relieving heat treatment is necessary for other materials,it should be taken fully annealing.The materials receiving heat treatment should keep clean,keep from greasy dirt and oils and potential carbon source.



Usage example: Aviation, chemical industry, power plant desulfurization.


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