Sandvik SAF 2707 HD™
Sandvik SAF 2707 HD™ introduction
Sandvik SAF 2707 HD™ is a high-alloy duplex (austenitic-ferritic) stainless steel for service in highly corrosive conditions. The grade is particularly suited for use in aggressive acidic and chloride containing environments. Sandvik SAF 2707 HD™ characteristics:
Excellent resistance to pitting and crevice corrosion
Excellent resistance to stress corrosion cracking (SCC) in chloride containing environments
High resistance to general corrosion in acidic environments
Excellent resistance to erosion corrosion
Excellent corrosion fatigue properties
Extremely high mechanical strength
Physical properties that offer design advantages
Good weldability
More technical information and charts that are relevant to the materials corrosion, mechanical and physical performance are displayed in the figures on the right side of the material page.
Datasheet URL:
Sandvik SAF 2707 HD™
Datasheet updated 2019-12-20 09:55 (supersedes all previous editions)
Equivalent material: UNS S32707, EN 1.4658
Sandvik SAF 2707 HD™ general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 g/cm³ |
- |
| Recycled Content |
- |
Recycled Content of 82.1 % |
Average recycled content |
Sandvik SAF 2707 HD™ thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.25E-5 1/K |
for 30°C to the mentioned temperature |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
for 30°C to the mentioned temperature |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.4E-5 1/K |
for 30°C to the mentioned temperature |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 470 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 495 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 530 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 560 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 590 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 12 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 14 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 16 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 18 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 19 W/(m·K) |
- |
Sandvik SAF 2707 HD™ chemical
| Property |
Value |
Comment |
| Carbon |
Carbon of 0.03 % |
max. |
| Chromium |
Chromium of 27 % |
- |
| Cobalt |
Cobalt of 1 % |
- |
| Iron |
- |
| Manganese |
Manganese of 1.5 % |
max. |
| Molybdenum |
Molybdenum of 4.8 % |
- |
| Nickel |
Nickel of 6.5 % |
- |
| Nitrogen |
Nitrogen of 0.4 % |
- |
| Phosphorus |
Phosphorus of 0.04 % |
max. |
| Silicon |
Silicon of 0.5 % |
max. |
| Sulfur |
Sulfur of 0.01 % |
max. |
Sandvik SAF 2707 HD™ electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
23.0 °C |
Electrical resistivity of 7.5E-7 Ω·m |
Sandvik SAF 2707 HD™ mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 197 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 189 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 178 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 168 GPa |
- |
| Elongation |
23.0 °C |
Elongation of 25 % |
min. |
| Elongation A2 |
23.0 °C |
Elongation A2 of 25 % |
min. |
| Hardness, Rockwell C |
23.0 °C |
Hardness, Rockwell C of 34 [-] |
max. |
| Tensile strength |
20.0 °C |
Tensile strength of 920 - 1100 MPa |
- |
| - |
50.0 °C |
Tensile strength of 900 MPa |
- |
| - |
100.0 °C |
Tensile strength of 850 MPa |
- |
| - |
150.0 °C |
Tensile strength of 840 MPa |
- |
| - |
200.0 °C |
Tensile strength of 830 MPa |
- |
| - |
250.0 °C |
Tensile strength of 810 MPa |
- |
| - |
300.0 °C |
Tensile strength of 790 MPa |
- |
| Yield strength Rp0.1 |
20.0 °C |
Yield strength Rp0.1 of 800 MPa |
min. |
| - |
50.0 °C |
Yield strength Rp0.1 of 760 MPa |
min. |
| - |
100.0 °C |
Yield strength Rp0.1 of 670 MPa |
min. |
| - |
150.0 °C |
Yield strength Rp0.1 of 640 MPa |
min. |
| - |
200.0 °C |
Yield strength Rp0.1 of 590 MPa |
min. |
| - |
250.0 °C |
Yield strength Rp0.1 of 570 MPa |
min. |
| - |
300.0 °C |
Yield strength Rp0.1 of 560 MPa |
min. |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 700 MPa |
min. |
| - |
50.0 °C |
Yield strength Rp0.2 of 645 MPa |
min. |
| - |
100.0 °C |
Yield strength Rp0.2 of 600 MPa |
min. |
| - |
150.0 °C |
Yield strength Rp0.2 of 560 MPa |
min. |
| - |
200.0 °C |
Yield strength Rp0.2 of 540 MPa |
min. |
| - |
250.0 °C |
Yield strength Rp0.2 of 510 MPa |
min. |
| - |
300.0 °C |
Yield strength Rp0.2 of 500 MPa |
min. |
Sandvik SAF 2707 HD™ application
| Property |
- |
- |
| Application areas |
| Certifications |
| Cold Forming |
| Corrosion properties |
Grade |
PRE |
| - |
- |
65/50 |
105/70 |
| Sandvik SAF 2707 HD |
≥48 |
No Attack |
No Attack |
| Sandvik SAF 2507 |
≥42.5 |
No Attack |
Pitting |
| Sandvik SAF 2205 |
≥35 |
Pitting |
Pitting |
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