Products

430 Series

FEATURES AND USAGE AREAS

430 basic ferritic steel types. It has a low thermal expansion rate and excellent tensile properties and oxidation resistance..

It is preferred in heat resistant appliances, triple bottomed teat bases, gas nozzles, household appliances, houses, construction materials, bolts and nuts, rods and sieves.

CHEMICAL COMPOSITION
Analysis % C Mn P S CR
ASTM A240 0.12 max 1.0 max 0.045 max 0.03 max 1.0 max 16.0 to 18.0
Typical 0.05 0.7 0.021 0.024 0.6 17
MECHANICAL PROPERTIES (ROOM TEMPERATURE)
Typical Min
Tensile strength
530 450
Yielding strength  
360 205
Elongation 
25 22
Hardness 
160 -
SPECIFICATIONS WITH HIGH TEMPERATURES
Heat °C 300 400 550 650 750
Tensile strength
450 430 220 120 50
Ductility  FEATURES
Heat °C 550 600 650 700 750
tensile MPa* 50 30 15 5 3
*For 1% elongation at 10,000 hours
RECOMMENDED MAX. OPERATING TEMPERATURE*
Continuous operation
750 °C
Intermittent operation
850 °C
*Oxidizing conditions /
Notice: After 100 hours of operation at 425-525 ° C, the steel becomes fragile when cooled to room temperature.
Corrosion Strength (CONTACT WITH LIQUID)
Heat °C 20 80
Concentration (%) 1 5 10 20 80 100 1 5 10 20 80 100
Sulfuric acid2 2 2 2 2 1 2 2 2 2 2 2
Nitric acid
0 0 0 0 1 2 0 0 0 1 1 2
Phosphoric acid0 0 2 2 1 0 0 0 2 2 1 1
Acetic acid
0 0 1 1 1 0 0 2 2 2 2 0
0 = dayanıklı-korozyon oranı 100 μ / yıl 'dan az
1 = kısmen dirençli - 1000 μ / yıl'dan düşük korozyon hızı
2 = non-durable-corrosion rate greater than 1000 μ / year
Atmospheric environment
Corrosion Amount
430 Aluminium-3S Carbon steel
Occidental 
0.0025 0.025 5.8
Saltwater
0.0381 0.432 34.0
Saltwater-industrial  0.0406 0.686 46.2
Corrosion performance of 430 types of steel in this table is compared to other materials in different environmental conditions.
Corrosion rates are based on a 10 year period..