Density Kg/dm3:8
ASTM / ASME
PLATES:A/SA 240B/SB 409
TUBI SALDATI:A/SA 358 – B/SB 514
SEAMLESS PIPES:B/SB 407
RACCORDI:A/SA 403 – B/SB 366WPNIC10
VdTÜV
412-434
Reference:A/SA 240 – B/SB 409
Tensile Strength min N/mm2:450
Yield Point min N/mm2:170
Elongation 2” min %:30
Hardness max HB **:-
Hardness max HRB **:-
C % max:0.05 – 0.1
Mn % max:1.5
Si % max:1.00
P % max:0.045
S % max:0.015
Cr %:19 – 23
Ni %:30 – 35
Mo %:-
Fe %:39.5 min
Cu % max:0.75
Al % max:-
Co % max:0.15 – 0.6
Other elements:Ti 0.15-0.6
*Alloy 800 was slightly modified into Alloy 800H with higher level of carbon to optimize stress rupture properties. Alloy 800H is normally used in the range of 600-700°C (1110- 1290° F) where resistance to creep and rupture is required, without loss of ductility. It has good resistance to reducing or oxidising atmospheres and to atmospheres which alternate between reducing and oxidising conditions. The general corrosion resistance is excellent. * Nuclear engineering, chemical, pharmaceutical, food, agriculture, petrochemical engineering (reformers, thermal and catalytic crackers, internal components for secondary reformers), convection section for ethylen crackers and pyrolysis furnace, piping, mechanical engineering, furnace components (radiant tubes, muffles, baskets).
* VdTÜV 412/434
*** Values referred to grade 1. For grade 2: T.S.min = 690, Y.P.min = 276