DIN 1.4301 SS Pipe Seamless Stainless Steel Pipe Diameter 1/4 inch
-20 inch
EN 1.4301 Stainless Steel (X5CrNi18-10)
DIN EN 1.4301 stainless steel (X5CrNi18-10) is a conventional
austenitic stainless steel with good resistance to atmospheric,
organic and inorganic chemicals. This material is widely used due
to its excellent intergranular corrosion resistance, good cold
deformability, good deep drawability and weldability.
1.4306 (X2CrNi19-11) and 1.4307 (X2CrNi18-9) are ultra-low carbon
versions of 1.4301. The purpose is to improve the corrosion
resistance after welding and prevent carbide precipitation caused
by stress relief for a long time.
DIN 1.4301 Magnetic
EN X5CrNi18-10 is non-magnetic in the annealed state, but it may
become slightly magnetic due to the addition of martensite or
ferrite during cold working or welding.
X5CrNi18-10 Datasheet
The following tables and lists give the SS 1.4301 datasheet
including chemical composition, physical properties and mechanical
properties etc.
DIN EN 1.4301 Chemical Composition
The following table shows the chemical composition of 1.4301
material base on cast analysis.
| Chemical Composition, % |
| Country (Region) | Steel Grade (Material Number) | C, ≤ | Si, ≤ | Mn, ≤ | P, ≤ | S, ≤ | Cr | Ni | N, ≤ |
| European Union | X5CrNi18-10 (1.4301) | 0.07 | 1.00 | 2.00 | 0.045 | 0.015 | 17.5-19.5 | 8.0-10.5 | 0.10 |
| 0.07 | 1.00 | 2.00 | 0.045 | 0.030 | 17.5-19.5 | 8.0-10.5 | 0.10 |
Notes:
- EN 10088-2: Technical delivery conditions for stainless steel
sheet/plate and strip of corrosion resisting steels for general
purposes; Particular ranges of sulfur content may provide
improvement of particular properties. For machinability a
controlled sulfur content of 0,015 % to 0,030 % is recommended and
permitted. For weldability, a controlled sulfur content of 0,008 %
to 0,015 % is recommended and permitted. For polishability, a
controlled sulfur content of 0,015 % max is recommended.
- EN 10088-3: Technical delivery conditions for semi‑finished
stainless steel products, bars, rods, wire, sections and bright
products of corrosion resisting steels for general purposes.
Material X5CrNi18-10 Mechanical Properties
The following table gives the SS 1.4301 mechanical properties in
the solution-annealed condition for steel sheet, steel plate and
steel strip.
| Standard | Steel Name (Steel Number) | Product Condition | Thickness (mm), ≤ | 0,2 % proof strength (Mpa), (Transverse) | 1 % proof strength (Mpa), (Transverse) | Tensile strength (MPa) | Elongation (%), < 3mm thick | Elongation %, ≥ 4mm thick | Impact energy (J) KV2
> 10mm thick (Longitudinal) | Impact energy (J) KV2
> 10mm thick (Transverse) |
| EN 10216-5 | X5CrNi18-10 (1.4301) | cold rolled strip | 8 | ≥230 | ≥260 | 540-750 | ≥45 | ≥45 | – | – |
| hot rolled strip | 13.5 | ≥210 | ≥250 | 520-720 | 100 | 60 |
| hot rolled plate | 75 | ≥210 | ≥250 | 520-720 | 100 | 60 |
| | Mechanical properties (solution annealed) |
| Standard | Steel Grade (Steel Number) | Diameter (d) or Thickness (t) in mm | Hardness (HB) | 0.2% yield strength (MPa) | 1% yield strength (MPa) | Tensile strength (MPa) | Elongation (≥ %) | Impact energy (J) |
| EN10216-5 | X5CrNi18-10 | d≤160 | ≤ 215 | ≥ 190 | ≥ 225 | 500-700 | 45 (long.) | ≥ 100 (long.) |
| 160<t≤250 | 35 (tr.) | ≥ 60 (tr.) |
| | Mechanical properties for bright bars (solution annealed) in
conditions 2H, 2B, 2G or 2P |
| Standard | Steel Name (Material Number) | Diameter (d) or Thickness (t) in mm | 0.2% proof strength (MPa) | Tensile strength (MPa) | Elongation (long.), (≥ %) | Impact energy (long.), (J) |
| EN10216-5 | X5CrNi18-10 (1.4301) | d≤10 | 400 | 600-950 | 25 | – |
| 10<t≤16 | 400 | 600-950 | 25 | – |
| 16<t≤40 | 190 | 600-850 | 30 | 100 |
| 40<t≤63 | 190 | 580-850 | 30 | 100 |
| 63<t≤160 | 190 | 500-700 | 45 | 100 |
| 160<t≤250 | 190 | 500-700 | 35 (tr.) | 60 (tr.) |
| Mechanical properties at different temperatures (solution annealed) |
| Standard | Steel (Material Number) | Temperature, °C (°F) | 0,2 % yield strength, MPa, ≥ | 1 % yield strength, MPa, ≥ |
| EN 10216-5 | X5CrNi18-10 (1.4301) | 100 | 157 | 191 |
| 150 | 142 | 172 |
| 200 | 127 | 157 |
| 250 | 118 | 145 |
| 300 | 110 | 135 |
| 350 | 104 | 129 |
| 400 | 98 | 125 |
| 450 | 95 | 122 |
| 500 | 92 | 120 |
| 550 | 90 | 120 |
Physical Properties
Notes:
- 10-6·K-1 = 10-6/K
- 1 Ω·mm²/m = 1 μΩ·m
- 1 g/cm3 = 1 kg/dm3 = 1000 kg/m3
- 1 GPa = 1 kN/mm2
- 1 MPa = 1 N/mm2
| Physical Properties |
| Density, g/cm3 (lb/in.3) | 7.9 (0.29) |
| Melting point, °C (°F) | 1400-1455 (2550-2650) |
| Specific heat capacity, J/kg·K (Btu/lb ·°F) | 500 (0.12) at 20℃ (68 °F) |
| Electrical resistivity, μΩ·m | 0.73 at 20℃ (68 °F) |
| Magnetic | No |
| Magnetic permeability | 1.02 (Approximate) |
| Elastic modulus / Modulus of elasticity, GPa (103 ksi) | 200 (29) at 20℃ (68 °F) |
| 194 (28) at 100 °C (212 °F) |
| 186 (27) at 200 °C (392 °F) |
| 179 (26) at 300 °C (572 °F) |
| 172 (25) at 400 °C (752 °F) |
| 165 (24) at 500 °C (932 °F) |
| Thermal conductivity, W/m·K (Btu/ft · h ·°F) | 15 (8.67) at 20 °C (68 °F) |
| Coefficient of thermal expansion, 10-6/K | 16.0 at 20-100 ℃ (68-212 °F) |
| 16.5 at 20-200 ℃ (68-392 °F) |
| 17.0 at 20-300 °C (68-572 °F) |
| 17.5 at 20-400 °C (68-752 °F) |
| 18.0 at 20-500 °C (68-932 °F) |
Welding
EN 1.4301 stainless steel can be easily welded by various
conventional welding methods, but since the material is not
resistant to intergranular corrosion after welding, if it is
necessary to weld larger parts and cannot perform solution
annealing after welding, 1.4307 stainless steel should be selected.
The surface state has a relatively large influence on the corrosion
resistance of the steel, so that the polished surface generally has
superior corrosion resistance than the rough surface.
Corrosion Resistance
DIN EN 1.4301 stainless steel has good atmospheric corrosion
resistance up to 300 °C, and good resistance to many (lightly
corrosive) organic and inorganic chemicals. It can also be used at
very low temperatures, but there are some limitations in marine,
coastal and chloride-containing solutions.
Heat Treatment
- Solution annealing: 1000 – 1100 ℃ (cooling: water, air)
- Hot forming: 1200 – 900 ℃ (cooling: air)
Hardening
EN 1.4301 stainless steel cannot be hardened by heat treatment, but
can be hardened by cold working.
Applications
Due to its good corrosion resistance, processability and
weldability, EN 1.4301 stainless steel is widely used in chemical,
tableware, watches, auto parts, medical equipment, architectural
decoration, aerospace and electrical appliances.
DIN 1.4301 Material Equivalent Grades
EN 1.4301 stainless steel (X5CrNi18-10) equivalent to US ASTM AISI
SAE, ISO, European Union (Germany DIN, British BSI, France NF…),
Japanese JIS and Chinese GB standard (For reference).
| EN X5CrNi18-10 material equivalent |
| European Union | US | ISO | China | Japan |
| Standard | Steel Name (Material Number) | Standard | Grade (UNS) | Standard | Grade | Standard | Grade | Standard | Grade |
EN 10088-2; EN 10088-3;
EN 10088-1 | X5CrNi18-10 (1.4301) | AISI;
ASTM A240/A240M;
A276/A276M | AISI 304 (UNS S30400) | ISO 15510 | X5CrNi18-10 | GB/T 20878;
GB/T 1220;
GB/T 3280 | 06Cr19Ni10;
0Cr18Ni9 (Old designation) | JIS G4304 | SUS304 |
