Boiler steel P295GH+N, 1.0481 adapted to work in elevated temperatures in pressure equipment according to EN 10028-2, EN 10273.
| Standard | Steel Grade | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | ||||||||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Mo: | Ni: | V: | Nb: | Ti: | Al: | Cu: | N: | |
| EN | P295GH - 1.0481 | |||||||||||||
| 0.08 - 0.20 | 0.9 - 1.5 | <0.4 | <0.025 | <0.015 | <0.3 | <0.08 | <0.3 | <0.02 | <0.02 | <0.03 | >0.02 | <0.3 | <0.012 | |
| ISO | P290 | |||||||||||||
| <0.2 | 0.9 - 1.5 | <0.4 | <0.035 | <0.030 | <0.3 | <0.08 | <0.3 | - | - | - | >0.02 | <0.3 | - | |
P295GH, 1.0481 - specifications and application
Steel intended for elements of pressure equipment and power installations operating at elevated temperatures and pressures. The materials are delivered in the normalized condition +N.
Mechanical properties of P295GH, 1.0481 +N
- Dimensions <16mm
- Tensile strength, Rm: 460 - 580 MPa
- The yield point, Rp0,2: >295 MPa
- Elongation, A:> 21%
- Dimensions 16 - 40mm
- Tensile strength, Rm: 460 - 580 MPa
- The yield point, Rp0,2: >290 MPa
- Elongation, A:> 21%
- Dimensions 40 - 60mm
- Tensile strength, Rm: 460 - 580 MPa
- The yield point, Rp0,2: >285 MPa
- Elongation, A:> 21%
- Dimensions 60 - 100mm
- Tensile strength, Rm: 460 - 580 MPa
- The yield point, Rp0,2: >260 MPa
- Elongation, A:> 21%
- Dimensions 100 - 150mm
- Tensile strength, Rm: 440 - 570 MPa
- The yield point, Rp0,2: >235 MPa
- Elongation, A:> 21%
- Dimensions 150 - 250mm
- Tensile strength, Rm: 430 - 570 MPa
- The yield point, Rp0,2: >220 MPa
- Elongation, A:> 21%
- Impact resistance, KV20℃ >40 J
- Impact resistance, KV0℃ >34 J
- Impact resistance, KV-20℃ >27 J
Properties at elevated temperatures of P295GH, 1.0481
| The yield point Rp0.2 (MPa) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Temperature (℃) | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 |
| <16mm | >285 | >268 | >249 | >228 | >209 | >192 | >178 | >167 |
| 16 - 40mm | >280 | >264 | >244 | >225 | >206 | >189 | >175 | >165 |
| 40 - 60mm | >276 | >259 | >240 | >221 | >202 | >186 | >172 | >162 |
| 60 - 100mm | >251 | >237 | >219 | >201 | >184 | >170 | >157 | >148 |
| 100 - 150mm | >227 | >214 | >198 | >182 | >167 | >153 | >142 | >133 |
| >150mm | >213 | >200 | >185 | >170 | >156 | >144 | >133 | >125 |
| Temperature (℃) | 380 | 400 | 420 | 440 | 460 | 480 | 500 |
|---|---|---|---|---|---|---|---|
| Creep limit, R1/100000 (MPa) | 153 | 118 | 92 | 69 | 51 | 38 | 29 |
| Creep strength, Rz/100000 (MPa) | 227 | 179 | 136 | 100 | 73 | 55 | 41 |
Heat treatment
- Normalizing annealing at temperatures of 890 - 950℃
- Relief annealing at a temperatures of 520 - 580℃