Steel Grade
1.4310 - 301 HT3
STANDARDS | CHEMICAL COMPOSITION % | ||||||||||||
C | Mn | Si | P | S | Cr | Ni | Mo | N | Ti | Cu | Co | OTHER | |
EN 10088-2 | 0.050-0.150 | max 2.0 | max 2.0 | max 0.045 | max 0.015 | 16.00-19.00 | 6.00-9.50 | max 0.80 | max 0.11 | – | – | – | |
ASTM A 240 | Max .0.15 | max 2.0 | max 1.0 | max 0.045 | max 0.030 | 16.00-18.00 | 6.00-8.00 | – | max 0.10 | – | – | – | |
OTELINOX | 0.09-0.11 | 0.98-1.16 | 1.0-1.17 | 0.023-0.037 | 0.001-0.003 | 16.63-17.4 | 6.35-6.78 | 0.65- 0.79 | 0.050-0.073 | – | 0.27-0.39 | – | |
EUROPE TYPE | USA TYPE | OTELINOX TYPE | PRACTICABILITY | |||||
Corrosion resistance | Cold forming | Weldability | Mechanical strength level | Resistance of hot oxidation | Utilizations | |||
1.4310 | 301 | 301HT3 | *** | **** | *** | ***** | ** | Automotive industry, chemical industry, building tools, decorative purposes, tubes, soles for safety shoes, gaskets, springs, pot lid connectors , watch parts |
* Low; **Medium; *** Good; **** Very good; ***** Excellent.
| 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 | ≥ 250 | ≥ 280 | 600-950 | ≥ 40 | ||
ASTM A 240 | 2B & BA | ≥ 205 | ≥ 515 | ≥ 40 | ≤ 217 | ≤ 95 | |
OTELINOX | 2B | 300 – 375 | – | 780 – 890 | 49 – 60 | 87 – 93 | |
2R & BA | 325 – 400 | – | 830 – 950 | 42 – 58 | – | 79 – 90 | |
MECHANICAL PROPERTIES IN COLD-WORKED CONDITION | ||||||||
MECHANICAL PROPERTIES | C700 [700-850) | C850 [850-1000) | C1000 [1000-1150) | C1150 [1150-1300) | C1300 [1300-1500) | C1500 [1500-1700) | C1700 [1700-1900) | C1900 [1900-2200] |
0.2% Proof strength | – | – | 540 – 850 | 600 – 980 | 770 – 1420 | 1140 – 1675 | 1269 – 1811 | 1740 – 2034 |
Elongation % | – | – | 25 – 40 | 17.5 – 36.5 | 9.0 – 23.0 | 1.0 – 17.0 | 1.0 – 2.5 | 1.0 – 2.0 |
Hardness | – | – | 270 – 400 | 300 – 445 | 370 – 510 | 459 – 537 | 481 – 557 | 517 – 596 |
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ASTM | OTELINOX | ||||
SURFACE FINISH | TENSILE STRENGTH (N/mm2) | 0.2% Proof str. [N/mm2] | Elongation [%] | Hardness [HV] | |
1/4H | 860-1034 | – | – | – | |
1/2H | 1035-1204 | 540 – 890 | 23.0 – 40.0 | 270 – 430 | |
3/4H | 1205-1274 | 635 – 975 | 19.5 – 31.5 | 320 – 440 | |
Full Hard | ≥1275 | 720 – 2035 | 1.0 – 23.0 | 365 – 580 | |