Steel Grade
1.4303 - 305
STANDARDS | CHEMICAL COMPOSITION % | ||||||||||||
C | Mn | Si | P | S | Cr | Ni | Mo | N | Ti | Cu | Co | OTHER | |
EN 10088-2 | max | max | max | max | max | 17.0-19.0 | 11.0-13.0 | – | max | – | – | – | |
ASTM A 240 | max | max | max | max | max | 17.0-19.0 | 10.5-13.0 | – | max | – | – | – | |
OTELINOX | 0.041 | 0.87 | 0.42-0.43 | 0.025 | 0.001 | 17.68 | 12.47 | 0.15 | 0.043 | – | 0.17-0.18 | – | |
EUROPE TYPE | USA TYPE | OTELINOX TYPE | PRACTICABILITY | |||||
Corrosion resistance | Cold forming | Weldability | Mechanical strength level | Resistance of hot oxidation | Utilisations | |||
1.4303 | 305 | 305 | **** | ***** | ***** | *** | * | Electronic parts, deep drawn parts, battery cases |
* 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 | ≥ 220 | ≥ 250 | 500-650 | ≥ 45 | ||
ASTM A 240 | 2B & BA | ≥ 170 | ≥ 485 | ≥ 40 | ≤ 183 | ≤ 88 | |
OTELINOX | 2B | – | – | – | – | – | – |
2R & BA | 240 – 275 | 270 – 295 | 560 – 605 | 46 – 57 | – | 73 – 85 | |