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EN X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 Details

X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 Application:Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Category Type Grade Microstructure Designations
Grades Stainless Steels X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 Austenite European - EN , EN 10028-7 - Flat products made of steels for pressure purposes - Part 7: Stainless steels
EN 10088-1 - Stainless steels - Part 1: List of stainless steels
EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-4 - Stainless steels - Part 4: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
EN 10088-5 - Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
EN 10216-5 (2004) - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5: Stainless steel tubes
EN 10217-7 - Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7: Stainless steel tubes
EN 10222-5 - Steel forgings for pressure purposes - Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels
EN 10250-4 - Open die steel forgings for general engineering purposes - Part 4: Stainless steels
EN 10253-3 - Butt-welding pipe fittings - Part 3: Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements
EN 10253-4 - Butt-welding pipe fittings - Part 4: Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
EN 10263-5 - Steel rod, bars and steel wire for cold heading and cold extrusion - Part 5: Technical delivery conditions for stainless steels
EN 10272 - Stainless steel bars for pressure purposes
EN 10296-2 (2005) - Welded circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel
EN 10297-2 (2005) - Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

Chemical composition(wt.%) of X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 grade: EN 10028-7

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.080
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.015
Cr 16.50 18.50
Mo 2.00 2.50
Ni 10.50 13.50
Ti 5×C 0.70

Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 steel is austenitic grade stabilized with titanium, resistant to intergranular corrosion, pitting corrosion, most acids and salts in moderate concentrations. It is characterized by relatively good strength properties at elevated temperatures and good weldability. It exhibits significantly better resistance to crevice and pitting corrosion compared to X5CrNi18-10 / 1.4301 steelThe addition of Titanium in the grade plays the role of the additional carbide-forming element, which helps to maintain a stable concentration of chromium during heat treatment, and prevents intergranular corrosion during welding. 


X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 steel is used in shipbuilding, chemical, dyeing, brewing, off-shore, pharmaceutical, textile, petrochemical, plastics and paper industries, in the production of chemical tanks, heat exchangers, fittings and installations for the production of chemical reagents, components - bolts, nuts working in contact with salts, parts and components of ships and ships, medical implants, surgical implants, springs, in construction for elements of balustrades, frames, ornaments, welded fittings, installations, parts of machines producing rubber.

Mechanical properties of grade X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 EN 10028-7

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)
368 (≥) 791 (≥) 11 31 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 113

Physical properties of grade X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 EN 10028-7

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
775 (≥) 165 (≥) 34 24 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 413
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
525 539 241

X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 - 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
X6CrNiMoTi17-12-2, 1.4571, AISI 316Ti, UNS S31635 EN European
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

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