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General description
BPS-SB-1850SM is a martensitic stainless chromium steel alloyed with molybdenum.
The grade is characterised by:
· Soft delivery condition
· Good formability
After heat treatment the grade has:
· A very good corrosion resistance
· High toughness
· Excellent fatigue strength properties
This grade is mainly used for special areas and conveyor.
Chemical composition (nominal) %
| C |
Si |
Mn |
P max |
S max |
Cr |
Mo |
| 0.38 |
0.4 |
0.6 |
0.025 |
0.010 |
13.5 |
1.0 | Physical properties
The physical properties of a steel are related to a number of factors, including alloying elements, heat treatment and manufacturing route, but the data presented below can generally be used for rough calculations.
| Density |
 |
| g/cm3 |
7.7 |
| lb/inch3 |
0.28 | Forms of supply
BPS-SB-1850SM can be supplied either in coils。
Hardening and tempering of the steel belt steel is needed to achieve the correct finish and to meet the properties required by the end user.
Dimensions
see the tolerance tables
Tolerances
see the tolerance tables
Mechanical properties
| As-delivered |
Tensile strength
MPa (ksi) |
Hardness
HV |
HRB |
| Annealed |
max 800 (116) |
max 275 |
max 103 |
| Cold rolled |
850-1000 (123-145) |
275-315 |
103-108 | Heat treatment
Hardening data
Hardening temperature 1030°C (1885°F), holding time 6 minutes, quenching in oil.
Tempering data
Belt thickness 3.5 mm (0,138 inch), tempering time 30 minutes.
Brittleness occurs with tempering above 400°C (800°F).
Disclaimer
Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice.
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