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DESCRIPTION
The BPS-SB-1000SA belt grade is a austenitic stainless steel and is character by:
---Excellent Tensile and Static Strength
---Good Corrosion and Wear Resistance
---Very Good Repair Ability
BPS-SB-1000SA is a high strength steel with excellent mechanical properties. This in combination with good corrosion resistance makes it the ideal choice for a wide range of application.
Chemical Composition (Nominal)%
C Si Mn Cr Mo
0.05 0.60 1.7 17.5 2.7
Specification
Werkstoff Nr. 1.4436
AIsI 316TI
Forms of Supply
The belts are, as standard, delivered in a hardened and tempered condition with a mill finish and have well-rounded edges. If required practically any surface finish can be supplied. Perforated belts are also available.
For tracking, the belts can be provided with V-ropes, either rubber or in the form of a specially designed steel spiral. If required, the product side of the belt can be fitted with retaining strips to keep the conveyed material on the belt or with transverse flights to prevent material from sliding backwards when the belt is steeply inclined.
Recommendation and advice are available from your local BPS-SB Office.
Mechanical Properties
Static Strength
Standard strength at room temperature, nominal values
Position Propor-tional limit Yield strength Tensile strength Weld factor Rm Hardness HV5
MPa Ksi MPa Ksi MPa Ksi
Parent material 1000 121 550 210 1000 121 0.65
530
Transverse weld
not heat treated 1070 127
Impact Properties
This belt grade is not recommended for use at low temperatures.
Dynamic Strength
The fatigue limit is defined as the reverse bending stress at which 50% of the test specimen withstand a minimum of 2x106 load cycles. These values refer to 20℃(68℉), a normal dry atmosphere and standard prepared specimen. The fatigue limit for the parent material is approximately ± 400MPa(125 ksi).
BPS-SB-1000SA Physical properties
Modulus of elasticity, E 182 000MPa 26 400 ksi
Density,P 8000 kg/m3 0.278 lb/in3
Theraml conductivity,λ
Temp, ℃ 20 100 200 300 400
℉ 68 212 392 572 752
W/mK 15 16 17 19 20
Btu/ft h ℉ 8.5 9.3 9.8 11.0 11.6
Specific Heat, Cp
Temp, ℃ 20 100 200 300 400
℉ 68 212 392 572 752
kJ/kgK 0.5 0.5 0.52 0.54 0.58
Btu/lb ℉ 0.11 0.11 0.12 0.12 0.13
Thermal expansion, α
Temp, ℃ 20-100 20-200 20-300 20-400
℉ 68-212 68-392 68-572 68-752
10-6/ ℃ 16 17 17.5 17.8
10-6/ ℉ 8.9 9.5 9.7 9.9
Resistivity, ρ
At 20 ℃ (68℉) 0.8μΩm
Magnetic properties
Remanence, Br 0.01Wb/m2
Coertcive force, Hc <1500 A/m
Max relative permeability, μr 1
The thermal conductivity of chromium steel is comparable to austenitic stainless steels, but the thermal expansion is much lower. This makes this steel less sensitive to thermal strain and buckling caused by uneven temperature.
Corrosion Resistance
General Corrosion
BPS-SB-1000SA shows a good corrosion resistance in rural and mild industrial atmosphere and less good resistance when expose to coastal atmosphere.
It has good resistance to:
Ammonium hydroxide up to boiling point and sodium hydroxide at low concentrations and temperatures.
BPS-SB-1000SA is not suitable to use in any concentration of hydrochloric acid, phosphoric acids, nitric acid and sulphur acid.BPS-SB-18.5Mis not suitable in any concentration of organic acid as acetic acid,lactic acid and citric acid.
Pitting and Crevice Corrosion
-Normal acids up to high concentrations and high temperature.
-Salt ,sugar, Vinegar
-Strong acids of low concentrations at moderate temperature, though not hydrochloric acid.
Welding
Welding Joints with very good strength and thoughness can be formed in BPS-SB-1000SA suitable fusion welding method is gas-Shield are welding, with the TIG method as first choice.
No welding wire is required.
Further information concerning method and equipment required etc. required can be obtained from your local BPS-SB office. |
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