Steel Grade
1.4510 - 439
STANDARDS | CHEMICAL COMPOSITION % | ||||||||||||
C | Mn | Si | P | S | Cr | Ni | Mo | N | Ti | Cu | Co | OTHERS | |
EN 10088-2 | max 0.05 | max 1.0 | max 1.0 | max 0.040 | max 0.015 | 16.0-18.0 | – | – | – | 4(C+N) + 0.15 to 0.8 | – | – | |
ASTM A 240 | max 0.03 | max 1.0 | max 1.0 | max 0.040 | max 0.030 | 17.0-19.0 | max 0.5 | – | 0.03 | [0.2+4(C+N)]min, to 1.10 max | – | – | |
OTELINOX | 0.01 | 0.17-0.21 | 0.12-0.14 | 0.028-.0.030 | 0.01-0.02 | 17.2-17.6 | 0.13-0.19 | 0.01 | 0.3-0.34 | – | – | ||
EUROPE TYPE | USA TYPE | OTELINOX TYPE | PRACTICABILITY |
| |||||
Corrosion resistance | Cold forming | Weldability | Mechanical strength level | Resistance of hot oxidation | Utilisations |
| |||
1.4510 | 439 (430Ti) | 439 (430Ti) | *** | *** | *** | ** | *** | Welded tubes | |
* Low; **Medium; *** Good; **** Very good; ***** Excellent.
STANDARDS | MECHANICAL PROPERTIES AT AMBIENT TEMPERATURE | ||||||
SURFACE | 0.2% Proof strength | 1% Proof strength | Tensile strength | Elongation % | Hardness | ||
N/mm2 | HB | HRB | |||||
EN 10088-2/2005 | 2B & 2R | ≥ 240 | 420-600 | ≥ 23 | |||
ASTM A 240/SA 240 | 2B & BA | ≥ 205 | ≥ 415 | ≥ 22 | ≤ 183 | ≤ 89 | |
OTELINOX | 2B | – | – | – | – | – | |
2R & BA | 280 – 345 | 460-475 | 29-32 | – | – | ||