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1117 is the American standard ASTM standard free cutting steel. Good precision, easy cutting, can greatly improve the service life of the tool, reduce the processing time, machinability significantly improve efficiency. 1117 free-cutting steel by increasing the sulfur and manganese content in the steel, forming a large number of manganese sulfide inclusions, iron filings are easy to break when cutting, can improve the surface quality of parts, and can be processed at a faster speed and deeper feed volume, thereby improving production efficiency and saving production costs.
Supply Form & Size
Form of Supply | Size(mm) | Length(mm) |
Round bar | 6.0mm-120mm | 2.5m-6m |
Chemical Composition&Related Specifications
Grade | C | Si | Mn | S | P |
1117 | 0.14~0.20 | ≤0.15 | 1.00~1.30 | 0.08~0.13 | ≤0.04 |
Brand comparison table
AISI/SAE | DIN/EN | BS | JIS/KS | China |
1117 | 15SMn13(1.0725) | 15SMn13(1.0725) | SUM32 | Y20 |
Mechanical Property
tensile strength σb (MPa) | 390~540 |
elongation δ5 (%) | ≥22 |
Reduction of area ψ (%) | ≥36 |