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ISO X7CrNiTi18-10 Tube Application:ISO standard austenitic stainless steel pressure seamless steel tube
Category Type Steel grade Standard Country
Grades Special Alloy ISO X7CrNiTi18-10 Tube ISO ISO

Chemical composition % of the ladle analysis of grade ISO X7CrNiTi18-10 Tube

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%)
0.04-0.10 Max 1.00 Max 2.00 Max 0.040 Max 0.030 17.0-19.0 9.00-12.0
ISO standard austenitic stainless steel pressure seamless steel tube
Mechanical properties of grade ISO X7CrNiTi18-10 Tube
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)
791 (≥) 363 (≥) 34 23 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 422
Physical properties of grade ISO X7CrNiTi18-10 Tube
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
991 (≥) 321 (≥) 23 31 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 123
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
284 826 597
ISO X7CrNiTi18-10 Tube 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
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
X7CrNiTi18-10 ISO ISO
Stainless steels - Chemical composition
X7CrNiTi18-10 ISO ISO
Welded steel tubes for pressure purposes - Technical delivery conditions - Part 6: Longitudinally welded austenitic stainless steel tubes
X7CrNiTi18-10 ISO ISO
Stainless steels - Chemical composition

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