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ISO X8NiCrAlTi32-21 Details

X8NiCrAlTi32-21 Application:Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels

Category Type Grade Microstructure Designations
Grades Stainless Steels - Special Steels X8NiCrAlTi32-21 Austenite International - ISO , ISO 15510 (2010) - Stainless steels -- Chemical composition
ISO 16143-3 (2005) - Stainless steels for general purposes -- Part 3: Wire
ISO 4955 (2005) - Heat-resistant steels
ISO 9328-5 - Steel plates and strips for pressure purposes - Technical delivery conditions - Part 5: Weldable fine grain steels, thermomechanically rolled
ISO 9328-7 (2011) - Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels

Chemical composition(wt.%) of X8NiCrAlTi32-21 grade: ISO 15510 (2010)

Elements Min.(≥) Max.(≤)
C - 0.10
Si - 1.00
Mn - 1.50
P - 0.015
S - 0.015
Cr 19.00 23.00
Ni 30.00 34.00
Al 0.15 0.60
Ti 0.15 0.60
Cu - 0.70
Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels

Mechanical properties of grade X8NiCrAlTi32-21 ISO 15510 (2010)

Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
379 (≥) 992 (≥) 21 42 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 323

Physical properties of grade X8NiCrAlTi32-21 ISO 15510 (2010)

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
151 (≥) 312 (≥) 14 11 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 423
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
135 524 577

X8NiCrAlTi32-21 - Form of Supply

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

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
X8NiCrAlTi32-21 ISO International
Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels
X8NiCrAlTi32-21 ISO International
Steel flat products for pressure purposes - Technical delivery conditions - Part 7: Stainless steels

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