abstract |
FIELD: steelmaking. SUBSTANCE: steel contains (in wt %): carbon, 0.10-0.17; manganese, 1.0-1.3; sulfur, 0.15-0.30; bismuth, 0.08-0.25; phosphorus, 0.05-0.15; iron, the balance. EFFECT: improved free-cutting characteristics and environmental condition due to reduced lead pollution. 1 tbl |