Low-alloy boiler steel 16Mo3, 16M, 15Mo3, 1.5415 according to PN-75/H-84024, DIN 17243, EN 10273, EN 10222-2.
| Standard | Steel Grade | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | |||||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Mo: | Ni: | Cu: | Al: | N: | |||
| EN/DIN | 16Mo3 - 15Mo3 - 1.5415 | ||||||||||||
| 0.12 - 0.20 | 0.4 - 0.9 | <0.35 | <0.025 | <0.010 | <0.3 | 0.25 - 0.35 | <0.3 | <0.3 | - | <0.012 | |||
| PN | 16M | ||||||||||||
| 0.12 - 0.20 | 0.5 - 0.8 | 0.15 - 0.35 | <0.040 | <0.040 | <0.3 | 0.25 - 0.35 | <0.35 | <0.25 | <0.012 | - | |||
| EN | 17Mo3 | ||||||||||||
| 0.12 - 0.22 | 0.4 - 0.9 | <0.4 | <0.025 | <0.015 | - | 0.25 - 0.35 | - | - | - | - | |||
| NF | 15D3 | ||||||||||||
| <0.18 | 0.5 - 0.8 | 0.15 - 0.35 | <0.035 | <0.030 | <0.3 | 0.25 - 0.35 | - | - | - | - | |||
16Mo3, 1.5415 - specifications and application
16Mo3 steel is used in the production of furnaces, parts of steam boilers, pressure vessels, heat exchangers, collective chambers, chemical equipment parts, hot gas distributors, bolts, flanges, nuts, coils, collectors and other energy equipment. Weldable grade.
Mechanical properties of 16Mo3, 1.5415 according to EN 10273
- Dimensions <16mm
- Tensile strength, Rm: 440 - 590 MPa
- The yield point, Rp0.2 >275 MPa
- Elongation, A > 24%
- Dimensions 16-40mm
- Tensile strength, Rm: 440 - 590 MPa
- The yield point, Rp0,2 >270 MPa
- Elongation, A > 24%
- Dimensions 40-60mm
- Tensile strength, Rm: 440 - 590 MPa
- The yield point, Rp0,2 >260 MPa
- Elongation, A > 23%
- Dimensions 60-100mm
- Tensile strength, Rm: 430 - 580 MPa
- The yield point, Rp0,2 >240 MPa
- Elongation, A > 22%
- Dimensions 100-150mm
- Tensile strength, Rm: 420 - 570 MPa
- The yield point, Rp0,2 >220 MPa
- Elongation, A > 19%
- Impact energy, KV20℃ >40 J
Strength properties at elevated temperatures of 16Mo3, 1.5415
| Temperature (℃) | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
|---|---|---|---|---|---|---|---|
| The yield point Rp0.2 (MPa) | 215 | 200 | 170 | 160 | 150 | 145 | 140 |
| Temperature (℃) | 450 | 470 | 490 | 510 | 530 |
|---|---|---|---|---|---|
| Creep strength, Rz/100000 (MPa) | 239 | 178 | 123 | 81 | 53 |
| Creep limit, R1/100000 (MPa) | 167 | 126 | 89 | 59 | 36 |
Heat and plastic treatment
- Rolling and forging at a temperature of 1100 - 850 ℃
- Normalizing annealing at temperatures of 890 - 950℃
- Relief annealing at a temperatures of 520 - 580℃
In the above mentioned grades the company provides:
Other grades designations:
17Mo3, 16Mo3, 15Mo3, 15D3, 20M, JIS STBA 12, CSN 15020, BS 243, TS26, K7, ASTM A161-70 Grade T1, MNC831, 0,3Mo, 0.3Mo, 16 Mo 3, 15 Mo 3, 15 D3, SA335 A335 grade P1, P2, A516 SA516 Grade 65, 70, 75, 51.5415.