Free-Cutting Steel
11SMnPb30 · 1.0718
Also known as 12L13 / 12L14 (near)
Lead-added free-cutting steel for high-speed automatic machining.
11SMnPb30 (material 1.0718) is a lead-added free-cutting (free-machining) steel designed for high-volume production on automatic lathes. Its sulphur and lead content gives excellent machinability and clean chip breaking. Supplied mainly as cold-drawn (bright) bar for precision turned parts.
International equivalents.
The same steel by country and standard — near matches; mill certificate governs.
Chemical composition.
Indicative, % by weight per EN 10277-3. Mill certificate governs.
| Element | % |
|---|---|
| C | ≤ 0.14 |
| Mn | 0.90 – 1.30 |
| S | 0.27 – 0.33 |
| Pb | 0.20 – 0.35 |
| P | ≤ 0.11 |
Mechanical properties.
Indicative values for a reference section and heat-treatment condition. Actual properties vary with dimension and treatment, and are confirmed on the mill certificate.
Available forms.
Size: Ø 3 – 80 mm
Typical applications.
- Automatic-lathe turned parts
- Fittings & connectors
- Fasteners
- Precision components
FAQ.
What is 11SMnPb30?
11SMnPb30 (material 1.0718) is a lead-added free-cutting (free-machining) steel designed for high-volume production on automatic lathes. Its sulphur and lead content gives excellent machinability and clean chip breaking. Supplied mainly as cold-drawn (bright) bar for precision turned parts.
Is 11SMnPb30 the same as 12L13?
Yes — 11SMnPb30 and 12L13, 12L14 (near) are matching designations for the same steel across different standards (EN, AISI/SAE, JIS, GB, former DIN). They are near equivalents and may differ slightly in chemistry, so the mill certificate governs the exact specification.
What are the international equivalents of 11SMnPb30?
11SMnPb30 corresponds to 11SMnPb30 (1.0718) (EN), 12L13 / 12L14 (near) (AISI / SAE), 9SMnPb28 (former DIN). Equivalents are nearest matches by country/standard; the mill certificate governs the exact specification.
In which forms is 11SMnPb30 available?
11SMnPb30 is supplied as Bright / cold-drawn bar, Round bar, Hexagonal bar, in Ø 3 – 80 mm.
What is 11SMnPb30 used for?
Typical applications include Automatic-lathe turned parts, Fittings & connectors, Fasteners, Precision components.