Views: 0 Author: Ruiyang company Publish Time: 2022-02-09 Origin: SHAANXI RUIYANG IMPORT AND EXPORT CO.,LTD
NH25-20 Designation corresponding grade 1.4848.HK40,SCH22
Centrifugal Casting 1.4848 Steel tube usually as furnace tube,NH25-20 are working at high temperature environment on average: 650° C-950° C. A small amount of ferrite in the metal structure of NH25-20,which with good oxidation resistance and weak thermal shock resistance.As furnace tube when temperature under 950° C,as furnace structure parts when temperature under 1150° C
Therefore most of NH25-20 are used for indirect heating to furnace like CAL (continuous annealing line). Similarly CGL (continuous galvanizing line).
NH25-20chemical components in centrifugal casting tube and elbows as below:
|NH25-20 in centrifugal casting tube|
|Designation||Corresponding grade||Similar grade|
|NH25-20 chemical components|
|TS Rm Mpa at R.T||YS R0.2 At RT||A At Rt||TS at H.T 900||YS at H.T900|
|NH25-20 Melting temperature||SST||1315||Density of NH25-20||7.75KG/dm3||Coefficient of expansion:20-800° C||18.2|
|L.S.T ||1390||As cast hardness HB||180||Modulus of Elasticity 800° C||133|
NH25-20 as products form usually as below:
Furnace tube sections
Furnace roller and furnace parts
Flanges and fittings
Radiant tube and radiant tube coils
NH25-20 in stainless steel as SS310,Could be bars,pipes,plate,sheet,wire,fasteners,pipe fittings and related products.
Welcome contact us for NH25-20 tube and centrifugal casting tubes,welded as radiant tube,radiant coils inquiry and order.