6 Mo

Main reference standards

Density Kg/dm3:8

PLATES
ASTM / ASME:A/SA 240 – B/SB688
EN:-

WELDED PIPES
ASTM / ASME:B/SB 675 – A/SA 312 – B/SB 804
EN:-

SEAMLESS PIPES
ASTM / ASME:A/SA 312
EN:-

FITTINGS
ASTM / ASME:B/SB 366
EN:-

VdTÜV

Mechanical and chemical characteristics

Reference:A/SA 240
Tensile Strength min N/mm2:655
Yield Point min N/mm2:310
Elongation 2” min %:30
Hardness max HB:241
Hardness max HRB:-
C% max:0.030
Mn% max:2.00
Si% max:1.00
P% max:0.04
S% max:0.03
Cr%:20 – 22
Ni%:23.5 – 25.5
Mo%:6 – 7
Fe%:Resto Balance
Cu% max:0.75
Other elements:N 0.18 – 0.25

Reference:B/SB 688
Tensile Strength min N/mm2:690 (b)
Yield Point min N/mm2:310
Elongation 2” min %:30
Hardness max HB:(b)
Hardness max HRB:100
C% max:0.030
Mn% max:2.00
Si% max:1.00
P% max:0.04
S% max:0.03
Cr%:20 – 22
Ni%:23.5 – 25.5
Mo%:6 – 7
Fe%:Resto Balance
Cu% max:0.75
Other elements:N 0.18 – 0.25

Properties and main applications

* Super-austenitic stainless steel, is a 6 moly alloy, has high nickel, molybdenum, nitrogen and chromium contents. Designed to be resistant to seawater and to a broad range of very corrosive environments (chloride pitting, crevice corrosion and stress corrosion cracking). * Chemical process tanks and pipelines, offshore, oil and gas platforms, condensers, heat exchangers and piping containing seawater or crude oil, filter washers, bleaching equipment for pulp and paper industries, power plant flue gas scrubber environments, tall oil distillation columns, desalination equipment and pumps, service water piping systems for nuclear power plants, pharmaceutical equipment (for product purity), food processing equipment.

Note

(b) W.T.>4.8mm: T.S. min=655, HB max=240


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