Heat-resistant steel X12CrMo15, X11CrMo5, 12CrMo19-5 for work at elevated temperatures for pressure applications, cracking, chromium-molybdenum according to EN 10216-2, EN 10222, ASTM A182/A335/A213.
| Standard | Steel Grade | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | ||||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Mo: | V: | Al: | Cu: | N: | |
| PN | H5M | |||||||||||
| <0.15 | <0.5 | <0.5 | <0.035 | <0.030 | 4.5 - 6.0 | <0.5 | 0.45 - 0.60 | - | - | - | - | |
| EN | X11CrMo5 - X 11 CrMo 5 - 1.7362 | |||||||||||
| 0.08 - 0.15 | 0.3 - 0.6 | 0.15 - 0.50 | <0.025 | <0.010 | 4.0 - 6.0 | - | 0.45 - 0.65 | - | <0.04 | <0.3 | - | |
| EN | X12CrMo5 - X 12 CrMo 5 - 1.7362 | |||||||||||
| 0.10 - 0.15 | 0.3 - 0.6 | <0.5 | <0.020 | <0.005 | 4.0 - 6.0 | <0.3 | 0.45 - 0.65 | - | - | <0.3 | <0.012 | |
| DIN | 12CrMo19-5 - 12 CrMo 19-5 | |||||||||||
| 0.08 - 0.15 | 0.3 - 0.6 | <0.5 | <0.025 | <0.020 | 4.0 - 6.0 | - | 0.45 - 0.65 | - | - | - | - | |
| AFNOR | Z10CD5-05 - Z 10 CD 5-05 | |||||||||||
| <0.15 | 0.3 - 0.6 | <0.35 | <0.020 | <0.015 | 4.0 - 6.0 | - | 0.45 - 0.65 | <0.04 | - | <0.3 | - | |
| GOST | 15Ch5M - 15Kh5M - 15Х5М | |||||||||||
| <0.15 | <0.50 | <0.50 | <0.030 | <0.025 | 4.5 - 5.5 | - | 0.45 - 0.65 | - | - | - | - | |
| EN | X16CrMo5-1 - X 16 CrMo 5-1 - 1.7366 | |||||||||||
| <0.18 | 0.3 - 0.8 | <0.4 | <0.025 | <0.015 | 4.0 - 6.0 | - | 0.45 - 0.65 | - | - | - | - | |
| ASTM | A199 grade T5 - A200 grade T5 - A213 grade T5 - A182 grade F5 - UNS K41545 | |||||||||||
| <0.15 | 0.3 - 0.6 | <0.5 | <0.030 | <0.030 | 4.0 - 6.0 | <0.5 | 0.44 - 0.65 | - | - | - | - | |
| BS | BS 625 | |||||||||||
| <0.15 | 0.3 - 0.6 | <0.5 | <0.030 | <0.030 | 4.0 - 6.0 | <0.3 | 0.45 - 0.65 | - | <0.2 | - | - | |
H5M, X11CrMo5, 12CrMo19-5 - application and specification
H5M is a heat-resistant grade also classified as boiler steel for pressure applications and operation at elevated temperatures. It exhibits good strength properties at elevated temperatures and resistance to hydrogen under pressure.
The grade is used for work with load and pressure up to 100 atm, at temperatures 450 - 600 ℃. It is mainly used in the form of pipes, sheets and hot-rolled bars in the production of oil cracking equipment in refineries, containing 0.75% Sulfur medium. Higher alloy grades with 7-9%. chromium content are selected for higher concentration of Sulfur
In addition to the basic purpose, steel is also used in the manufacture of apparatus for hydrogenation of coal, ammonia synthesis equipment, superheaters and air heaters, parts of steam boilers, screws or bolts operating in aggressive conditions, turbine blades, pump parts, covers or springs of manometers.
In the H5M grade and replacements are delivered, among others: hot-rolled pipes, bars and sheets in annealed condition. The applied treatment is usually chosen due to the fine grain size of the structure. The delivery condition is also +NT1 and +NT2 (+QT). In addition to pipes, hot-rolled sheets and bars are also produced. The welding process requires preheating heating and maintaining the temperature of the welded place, and after welding the re-annealing.
Mechanical properties of H5M steels and equivalents:
General mechanical properties of H5M:
- Tensile strength, Rm > 390 MPa
- The yield point, Re > 215 MPa
- Elongation, A > 22%
- Hardness: < 170 HB
- Modulus of elasticity, E = 206 GPa
Mechanical properties of X11CrMo5+I according to EN 10089:
+I - Annealing with isothermal transformation at 890 °C with cooling of the furnace
- Tensile strength, Rm 430 - 580 MPa
- The yield point, Re > 175 MPa
- Properties of samples tested longitudinally:
- Elongation, A:> 22%
- Impact resistance, KV20℃ >40J
- Properties of samples tested transversally:
- Elongation, A:> 20%
- Impact resistance, KV20℃ >27J
| Mechanical properties at individual operating temperatures for +I condition acc. to EN 10216-2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Temperature | 100℃ | 150℃ | 200℃ | 250-205℃ | 300℃ | 350℃ | 400℃ | 450℃ | 500℃ |
| The yield point, Re (MPa) | >156 | >150 | >148 | >147 | >145 | >142 | >137 | >129 | >116 |
Mechanical properties of X11CrMo5+NT1 according to EN 10216-2:
+NT1 - Normalizing at 930 °C with tempering at 980 °C in air
- Tensile strength, Rm 480 - 640 MPa
- The yield point, Re > 280 MPa
- Properties of samples tested longitudinally:
- Elongation, A:> 20%
- Impact resistance, KV20℃ >40J
- Properties of samples tested transversally:
- Elongation, A:> 18%
- Impact resistance, KV20℃ >27J
| Mechanical properties at individual operating temperatures for +NT1 condition acc. to EN 10216-2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Temperature | 100℃ | 150℃ | 200℃ | 250-205℃ | 300℃ | 350℃ | 400℃ | 450℃ | 500℃ |
| The yield point, Re (MPa) | >245 | >237 | >230 | >223 | >216 | >206 | >196 | >181 | >167 |
Mechanical properties of X11CrMo5+NT2 according to EN 10216-2:
+NT2 - Normalizing at 930 °C with tempering at 980 °C in air
- Tensile strength, Rm 570 - 740 MPa
- The yield point, Re > 390 MPa
- Properties of samples tested longitudinally:
- Elongation, A:> 18%
- Impact resistance, KV20℃ >40J
- Properties of samples tested transversally:
- Elongation, A:> 16%
- Impact resistance, KV20℃ >27J
| Mechanical properties at individual operating temperatures for +NT2 condition acc. to EN 10216-2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Temperature | 100℃ | 150℃ | 200℃ | 250-205℃ | 300℃ | 350℃ | 400℃ | 450℃ | 500℃ |
| The yield point, Re (MPa) | >366 | >350 | >334 | >332 | >309 | >299 | >289 | >280 | >265 |
Mechanical properties of X12CrMo5 according to EN 10028-2:
+NT920 - Normalizing at 970 °C with tempering at 680 °C in air
+QT - Hardening at 920 - 970℃ with tempering at 680 - 750℃
- Delivery condition +NT - Thickness: <60mm:
- Tensile strength, Rm 510 - 690 MPa
- The yield point, Re > 320 MPa
- Elongation, A:> 20%
- Impact resistance, KV20℃ >40J
- Impact resistance, KV0℃ >34J
- Impact resistance, KV-20℃ >27J
- Delivery condition +NT - Thickness: 60-150mm:
- Tensile strength, Rm 480-660 MPa
- The yield point, Re > 300 MPa
- Elongation, A:> 20%
- Impact resistance, KV20℃ >40J
- Impact resistance, KV0℃ >34J
- Impact resistance, KV-20℃ >27J
- Delivery condition +QT - Thickness: 150-250mm:
- Tensile strength, Rm 450 - 630 MPa
- The yield point, Re > 300 MPa
- Elongation, A:> 20%
- Impact resistance, KV20℃ >40J
- Impact resistance, KV0℃ >34J
- Impact resistance, KV-20℃ >27J
| Mechanical properties at individual operating temperatures for +NT2 condition acc. to EN 10216-2 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | 50℃ | 100℃ | 150℃ | 200℃ | 250℃ | 300℃ | 350℃ | 400℃ | 450℃ | 500℃ | |
| The yield point, Re (MPa) | Thickness <60mm | >310 | >299 | >295 | >294 | >293 | >291 | >285 | >273 | >253 | >222 |
| Thickness >60mm | >290 | >281 | >277 | >275 | >275 | >273 | >267 | >256 | >237 | >208 | |
In the above mentioned grades the company provides:
- Cold-drawn and hot-rolled pipes X11CrMo5, 1.7362, A182 grade F5, A335 grade P5, A213 grade T5
- Rolled bars, forged bars and forgings X11CrMo5, X12CrMo5, 1.7362, 12CrMo19-5, A182 grade F5, A335 grade P5, A213 grade T5
- Hot-rolled sheets X12CrMo5, X11CrMo5, 1.7362, 12CrMo19-5, A182 grade F5, A335 grade P5, A213 grade T5
Other indications and equivalents of the grade:
A1012 grade T5, A182 grade F5, A199 grade T5, A200 grade T5, SA 213 type T5, SA 182 type F5, UNS K41545, UNS S50100, UNS S50200, A336 Grade F5, A387 Grade 5, A369 Grade FP5, 15Ch5M, 15Kh5M, 15Х5М, 12Cr5Mo, 1Cr5Mo, S45110, CSN 17102, 1.7362+I, 1.7362+NT1, 1.7362+NT2, 1.7366, X11CrMo5, X11CrMo5+I, X11CrMo5+NT1, X11CrMo5+NT2, X12CrMo5, X16CrMo5-1, Z 10 CD 5-05, Z10CD5-05, Z 15 CD 5-05, Z15CD5-05, 12CrMo19-5, 12 CrMo 19-5, BS 625, 12CrMo20-5, 10Cr20Mo6, A16CrMo20-5KW, B16CrMo20-5KG, SCMV 6-1, SCMV 6-2, SFVA F5A, SFVA F5B, STBA25, STFA25, STPA25, 10MoCr50, F-240.B, A-240.B.