Free-Cutting Steel
11SMn30 · 1.0715
Also known as 1212 / 1213 (near)
Lead-free free-cutting steel for high-speed automatic machining.
11SMn30 (material 1.0715) is a sulphur free-cutting (free-machining) steel without lead, designed for high-volume production on automatic lathes. Its sulphur content gives excellent machinability and clean chip breaking. Supplied mainly as cold-drawn (bright) bar.
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 |
| 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 11SMn30?
11SMn30 (material 1.0715) is a sulphur free-cutting (free-machining) steel without lead, designed for high-volume production on automatic lathes. Its sulphur content gives excellent machinability and clean chip breaking. Supplied mainly as cold-drawn (bright) bar.
Is 11SMn30 the same as 1212?
Yes — 11SMn30 and 1212, 1213 (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 11SMn30?
11SMn30 corresponds to 11SMn30 (1.0715) (EN), 1212 / 1213 (near) (AISI / SAE), 9SMn28 (former DIN). Equivalents are nearest matches by country/standard; the mill certificate governs the exact specification.
In which forms is 11SMn30 available?
11SMn30 is supplied as Bright / cold-drawn bar, Round bar, Hexagonal bar, in Ø 3 – 80 mm.
What is 11SMn30 used for?
Typical applications include Automatic-lathe turned parts, Fittings & connectors, Fasteners, Precision components.