B.S. HR404

Grades | Stainless Steels | HR404

B.S. HR404

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HR404 Application:Specification for nickel-cobalt-chromium-molybdenum-titanium-aluminium heat-resisting alloy cold worked solution treated seamless tubes (nickel base, Co 20, Cr 20, Mo 5.9, Ti 2.1, Al 0.5)

Chemical composition(mass fraction)(wt.%) of the HR404
Elements Min.（≥） Max.（≤） Similar Remarks
C 0.04 0.08
Si - 0.40
Mn - 0.60
P - -
S - 0.007
Cr 19.00 21.00
Ni - remaining
Mo 5.60 6.10
Co 19.00 21.00
Ti 1.90 2.40
Fe - 0.70
Al 0.30 0.60
Ag - 0.0005
Al+Ti 2.40 2.80
Cu - 0.20
B - 0.0050
Bi - 0.0001
Pb - 0.002

Mechanical properties of grade HR404

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
726 (≥) 867 (≥) 32 43 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade HR404

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
669 (≥) 833 (≥) 43 41 34 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2		 - - -
213 412 441 - - -

HR404 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED