Short answer: Free-machining steels like 12L14, 1215 and 1144 add sulfur, lead or bismuth to break chips and extend tool life, so they suit high-volume CNC turning and screw machines; our Machining Guide en Steel Bar Supplier cover sourcing and methods.
At a Glance
What Makes Steel Free-Machining
Additives form soft inclusions that shorten chips and reduce tool wear; the machining basis is in our Machining Guide and bar sourcing in our Steel Bar Supplier en Brass Rod Supplier.
Algemene cijfers
12L14 and 1215 lead high-speed turning, 1144 serves shafts, and 303 is the stainless option, with strength data in our Sterkte vergelijking and heat treatment in our Heat Treatment Guide.
Where to Use and Avoid
Great for fasteners and fittings, but avoid in weldments and corrosive service; the corrosion basis is in our Corrosion Resistance Guide and finishing in our Surface Treatment Guide.
Sourcing Tips
Buy straight, bright bar with cert per our Mill Test Certificate Guide en Export Packing Guide.
Get a Quote
Tell HXSCO your requirements and we will respond with a competitive quote and lead time.
Veelgestelde vragen
Steel with sulfur/lead/bismuth added to improve cutting.
12L14 (lead + sulfur) for very high speeds.
Poorly – additives cause porosity; avoid in welds.
303 is the free-machining stainless grade.
Screw machines, fasteners and high-volume turning.
Buy Free-Machining Steel from HXSCO
HXSCO supplies 12L14, 1215, 1144 and 303 free-machining bar in bright and cold-drawn form. Send size and quantity for a quote.