1.4520, X2CrTi17, X1CrTi15 - stainless steel according to EN 10088-2:2014
Table of content:
| Standard | Steel Grade | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition% | |||||||||||||||
| C: | Si; | Mn: | P: | S: | Cr: | Ti: | N: | ||||||||
| EN | X2CrTi17 / 1.4520 | ||||||||||||||
| <0,025 | <0,5 | <0,5 | <0,04 | <0,015 | 16,0-18,0 | 0,3-0,6 | * | ||||||||
| EN | X1CrTi15 | ||||||||||||||
| <0,015 | <0,5 | <0,5 | <0,04 | <0,015 | 14,0-16,0 | 0,25-0,40 | <0,015 | ||||||||
| ISO | FP17A | ||||||||||||||
| <0,025 | <0,5 | <0,5 | <0,04 | <0,015 | 16,0-18,0 | <0,6 | # | ||||||||
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* Ti>4x(C+N)+0,15. Niobium or Zirconium may be used instead of Titanium, with following ratio: Nb = Zr = 7/4 Ti (% of atomic mass)
# N - <0,015; Nb - <0,34; Zr - <0,34; Ti > 8*(C+N); Nb = Zr = 7/4 Ti
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1.4520, X2CrTi17, X1CrTi15 – description
Stainless steel with proper resistance to many organic and inorganic halogen-free compounds over a wide temperature and concentration range. It is not susceptible to chloride-induced stress corrosion cracking. It is resistant to intergranular corrosion.
Aqueous solutions of halides (chlorides, bromides, fluorides) can cause pitting, although the steel can withstand even relatively high chloride concentrations for a short period of time. It also exhibits some resistance to dilute organic and mineral acids, though general corrosion will occur, if the acid is too hot or concentrated. Same applies to alkaline solutions.
The steel is widely used in household appliances.
The steel belongs to weldability group 7.1 by ISO
Mechanical and Physical Properties
Physical properties and general mechanical properties:
- In ambient temperature:
- Density: 7,7 g/cm3
- Specific heat capacity: 0,43 kJ/(kg*K)
- Electrical resistivity: 0,7 Ω*cm
- Thermal conductivity: 20 W/(m*K)
- Linear expansion coefficient: 10,4 * 10-6/K
- Young's modulus E: 220 GPa
- At 100°C:
- Linear expansion coefficient: 10,4 * 10-6/K
- Young's modulus E: 215 GPa
- At 200°C:
- Linear expansion coefficient: 10,8 * 10-6/K
- Young's modulus E: 210 GPa
- At 300°C:
- Linear expansion coefficient: 11,2 * 10-6/K
- Young's modulus E: 205 GPa
- At 400°C:
- Linear expansion coefficient: 11,6 * 10-6/K
- Young's modulus E: 195 GPa
- At 500°C:
- Linear expansion coefficient: 11,9 * 10-6/K
Mechanical properties of 1.4520 steel:
- Annealed (+A):
- Longitudial test pieces, cold rolled:
- Yield strength Re: > 180 MPa
- Tensile strength Rm: 380-530 MPa
- Elongation A: > 24 %
- Transverse test pieces, cold rolled:
- Yield strength Re: > 200 MPa
- Tensile strength Rm: 380-530 MPa
- Elongation A: > 24 %
- General:
- At 50°C:
- Yield strength Re: > 198 MPa
- At 100°C:
- Yield strength Re: > 195 MPa
- At 150°C:
- Yield strength Re: > 180 MPa
- At 200°C:
- Yield strength Re: > 170 MPa
- At 250°C:
- Yield strength Re: > 160 MPa
- At 300°C:
- Yield strength Re: > 155 MPa
- At 50°C:
- Longitudial test pieces, cold rolled:
- +A, +1C, +1E, +1D, +1X, +1G, +2D:
- Yield strength Re: > 200 MPa
- Tensile strength Rm: 420-620 MPa
- Elongation A: > 20 %
- Hardness HBW:
- Hot-rolled or hot-forget, drawn and annealed:
- Bright bars:
- Thickness: < 10 mm
- Yield strength Re: > 320 MPa
- Tensile strength Rm: 500-750 MPa
- Elongation A: > 8 %
- Thickness: 10-16 mm
- Yield strength Re: > 300 MPa
- Tensile strength Rm: 480-750 MPa
- Elongation A: > 10 %
- Thickness: > 16 mm
- Yield strength Re: > 240 MPa
- Tensile strength Rm: 400-700 MPa
- Elongation A: > 15 %
- Thickness: < 10 mm
- Bright bars:
Heat treatment and working
Recommended working and heat treatment parameters for 1.4520 alloy:
- Hot-forming: 1100-800 °C
- Annealing: 750-880 °C
We deliver this steel alloy as:
Replacements, equivalents and other designations:
1.4520, X1CrTi15, X2CrTi17, FP17A