Steel Grade
1.4828 - 309
STANDARDS | CHEMICAL COMPOSITION % | ||||||||||||
C | Mn | Si | P | S | Cr | Ni | Mo | N | Ti | Cu | Co | OTHER | |
EN 10088-2 | max | max | 1.5-2.5 | max | max | 19.0-21.0 | 11.0-13.0 | – | max | – | – | – | |
ASTM A 240 | max | max | max | max | max | 22.0-24.0 | 12.0-15.0 | – | – | – | – | – | |
OTELINOX | 0.049 | 0.93-0.94 | 1.84-1.97 | 0.026-0.027 | 0.001 | 19.05-19.25 | 11.09-11.11 | 0.16-0.22 | 0.044-0.053 | – | 0.16-0.17 | – | |
EUROPE TYPE | USA TYPE | OTELINOX TYPE | PRACTICABILITY | |||||
Corrosion resistance | Cold forming | Weldability | Mechanical strength level | Resistance of hot oxidation | Utilisations | |||
1.4828 | 309 | 309 | **** | ** | **** | **** | ***** | Heating elements |
* Low; **Medium; *** Good; **** Very good; ***** Excellent.
STANDARDS | MECHANICAL PROPERTIES AT AMBIENT TEMPERATURE IN ANNEALED CONDITION | ||||||
SURFACE FINISH | 0.2% Proof strength | 1% Proof strength | Tensile strength | Elongation % | Hardness | ||
N/mm2 | HB | HRB | |||||
EN 10088-2 | 2B & 2R | ≥ 230 | ≥ 270 | 550-750 | ≥ 28 | ≤223 | |
ASTM A 240 | 2B & BA | ≥ 205 | ≥ 515 | ≥ 40 | ≤ 217 | ≤ 95 | |
OTELINOX | 2B | – | – | – | – | – | – |
2R & BA | 315 – 470 | 340 – 515 | 650 – 740 | 39 – 57 | – | – | |