BÖHLER A220 is a low carbon, chromium nickel and molybdenum steel. Structure homogeneous, stable austenite. Weldable with analogous filler metal giving fully austenitic deposit. Resistant to intergranular corrosion in the temperature range up to 750°F (400°C). Resistance to acids having a reducing effect, like diluted sulphuric acid and hydrochloric acid is good. The steel is not susceptible to pitting, crevice and stress corrosion cracking in media containing chloride ions and possesses excellent resistance to the attack of urea and biocompatibility. Cold forming properties are good. The steel is capable of taking a mirror finish. The steel is produced as a remelt grade and thus meets the usual requirements for steel purity as specified for implant material.
Low carbon, chromium nickel molybdenum steel with low carbon content. Structure homogeneous, stable austenite. Weldable with analogous filler metal giving fully austenitic deposit. Resistant to intergranular corrosion in the temperature range up to 400°C. Resistance to acids having a reducing effect, like diluted sulphuric acid and hydrochloric acid is good. The steel is not suceptible to pitting, crevice and stress corrosion cracking in media containing chloride ions and possesses excellent resistance to the attack of urea and biocompatibility. Cold forming properties are good. The steel is capable of taking a mirror finish.
| SEL | SEL | EN | EN | UNS | AISI |
|---|---|---|---|---|---|
| 1.4435 | 1.4441 | X2CrNiMo18-14-3 | X2CrNiMo18-15-3 | S31603 | 316LUG |
| DIN | ASTM | ASTM | BS |
|---|---|---|---|
| DIN ISO 5832-1 | E114 | F138 | 7252/1 |
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | Co | N | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| max. 0.030 | max. 0.75 | max. 2.00 | max. 0.025 | max. 0.010 | 17.00 to 19.00 | 2.25 to 3.00 | 13.00 to 15.00 | max. 0.50 | max. 0.10 | max. 0.10 |
