X1CrNiMoCuN 20-18-7 Heat Resistant Stainless Steel Pipe EN 10216-5 1.4547 Steel Pipes
Material Specifications
| Grade |
X1CrNiMoCuN20-18-7 |
| Number |
1.4547 |
| Classification |
Austenitic stainless steel - special grade |
| Density |
8 g/cm³ |
Applicable Standards
- EN 10088-2: 2005 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes
- EN 10028-7: 2007 Flat products made of steels for pressure purposes. Stainless steels
- EN 10217-7: 2005 Welded steel tubes for pressure purposes. Stainless steel tubes
- EN 10296-2: 2005 Welded circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions
- EN 10253-3: 2008 Butt-welding pipe fittings. Wrought austenitic and austenitic-ferritic (duplex) stainless steels without specific inspection requirements
- EN 10253-4: 2008 Butt-welding pipe fittings. Wrought austenitic and austenitic-ferritic (duplex) stainless steels with specific inspection requirements
- EN 10272: 2007 Stainless steel bars for pressure purposes
- EN 10250-4: 2000 Open steel die forgings for general engineering purposes. Stainless steels
- EN 10297-2: 2005 Seamless circular steel tubes for mechanical and general engineering purposes. Stainless steel. Technical delivery conditions
- EN 10216-5: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Stainless steel tubes
- EN 10088-1: 2005 Stainless steels. List of stainless steels
- EN 10088-5: 2009 Stainless steels. Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
- EN 10088-4: 2009 Stainless steels. Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for construction purposes
Chemical Composition (%) - EN 10088-2-2005
| Element |
Composition |
| C |
max 0.02 |
| Si |
max 0.7 |
| Mn |
max 1 |
| Ni |
17.5 - 18.5 |
| P |
max 0.03 |
| S |
max 0.01 |
| Cr |
19.5 - 20.5 |
| Mo |
6 - 7 |
| N |
0.18 - 0.25 |
| Cu |
0.5 - 1 |
Mechanical Properties
Tensile Strength (+A)
650-850 MPa
Tensile Strength (+AT)
650-850 MPa
0.2% Proof Strength (+AT)
300 MPa
0.2% Proof Strength (+A)
300-340 MPa
Impact Energy Transverse (+A)
+20°C: 60 J
-196°C: 60 J
Impact Energy Longitudinal (+A)
+20°C: 100 J
Elongation at Fracture (+A)
30-40%
Elongation Transverse (+AT)
30%
Elongation Longitudinal (+AT)
35%
Brinell Hardness (+A)
260 HB
Brinell Hardness (+AT)
220 HB
Material Properties
Intergranular Corrosion Resistance
Delivery condition: Yes
Sensitized condition: Yes
Minimum Operating Temperature
-196°C
Equivalent Grades
Warning! Only for reference
| EU EN |
USA |
Sweden SS |
| X1CrNiMoCuN20-18-7 |
S31254 |
2378 |