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EN X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 Details

X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 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 X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 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 10088-5 - 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 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 X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 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 17.00 19.00
Mo - -
Ni 9.00 12.00
Nb 10×C 1.00

Mechanical properties of grade X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 EN 10028-7

Yield Strength,Rp 0.2(MPa)

Condition Min Max Similar Note
205

Tensile Strength,Rm(MPa)

Condition Min Max Similar Note
510 740

Impact,Kv/Ku(J)

Condition Min Max Similar Note

Elongation,A(%)

Condition Min Max Similar Note
40

Reduction of area,(%)

Condition Min Max Similar Note

Hardness

Condition Type Min Max Similar Note
HB 230

Physical properties of grade X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 EN 10028-7

Modulus of elasticity, E Note
200 GPa
Density, ρ Note
7,90 kg/dm³
Thermal capacity cp20℃ Note
500 J ⋅ ​kg⁻¹ ⋅​ K⁻¹
Thermal conductivity λ Note
15 W ⋅ m⁻¹ ⋅​ K⁻¹
Supersaturation Note
1020 - 1100℃

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

X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 used in cryotechnics, in the pharmaceutical industry, in the food industry - in food processing plants, dairies, sugar factories, breweries, in the fuel industry, i.e. in refineries and petrochemical plants.Steel intended for pipelines, autoclaves, transport tanks, heat exchangers, absorption towers, pumps, coolers, and reactors.

X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 - 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
X6CrNiNb18-10,1.4550,X5CrNiNb18-10,1.4546,AISI 347 EN European
Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 2: Stainless steel

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