Y40MnPb free-cutting steel

tongyimetal is committed to providing high-quality and affordable metal materials for the global metal processing industry

Y40MnPb free-cutting steel

Y40MnPb steel delivers excellent machinability, strength, and wear resistance—perfect for precision-engineered parts like shafts, gears, and bolts in high-efficiency machining.

Product Composition List

NO.Main Component(%)
CSiMnSPPbmore
Y12Pb0.08~0.16≤0.150.70~1.000.15~0.250.05~0.100.15~0.35
Y150.10~0.180.80~1.200.23~0.33
Y15Pb0.10~0.18≤ 0.150.80~1.200.23~0.330.05~0.100.15~0.35
Y200.17~0.240.80~1.200.20~0.35
Y40Mn0.35~0.451.30~1.700.20~0.35
Y40MnPb0.35~0.451.30~1.700.20~0.350.15~0.35

Y40MnPb free-cutting steel bars

This steel combines high hardness, strength, and wear resistance with outstanding cutting performance, making it suitable for automatic lathes and CNC machining. It is widely used in producing shafts, gears, bolts, nuts, bushings, and other mechanical parts that require both durability and high dimensional accuracy in mass production.

After proper quenching and tempering, Y40MnPb achieves high surface hardness and fatigue strength while maintaining stable cutting performance. However, it is not suitable for welding or heavy-impact applications. Its superior machinability, consistent quality, and long tool life make it a preferred material for efficient, precision-oriented manufacturing.

This steel features high dimensional accuracy and fine surface finish after machining. It is widely used for manufacturing screws, bolts, nuts, shafts, and other small mechanical parts with complex shapes. Due to its superior cutting performance, Y12Pb significantly improves productivity and is especially suited for mass production in the machinery and automotive industries.

The addition of lead improves lubrication and reduces cutting resistance, resulting in low tool wear and consistent quality. Y12Pb can be used in applications where high mechanical strength is not critical but where precision, surface quality, and machining efficiency are essential. It is not recommended for heat-treated or welded components due to reduced toughness.

Source factory high-precision customized stainless steel

We are committed to providing comprehensive custom solutions, ensuring each product meets your specific application requirements. Please contact us and share your detailed needs.

Straightness

High straightness customization

Our stainless steel bars achieve exceptional straightness, with tolerance controlled within 0.01mm, ensuring precision in use.
external diameter

Precision tolerance customization

We offer ultra-precise tolerance customization, controlled within 0.004mm, to meet the demands of applications requiring high accuracy.
roundness

Precision roundness customization

Our stainless steel bars can achieve roundness tolerance within 0.002mm, ensuring perfect roundness and consistency.
bright

High smoothness customization

Our stainless steel bars achieve exceptional straightness, with tolerance controlled within 0.01mm, ensuring precision in use.
Non-magnetic

Non magnetic customization

We provide non-magnetic stainless steel bars, with magnetism controlled within 0 Gauss, suitable for applications with specific magnetic requirements.
length

Fixed length production

while the standard length is 2.5 meters, we can produce according to your specifications, reducing waste and helping you save on costs.

Any other customization needs?

We are committed to providing comprehensive custom solutions, ensuring each product meets your specific application requirements. Please contact us and share your detailed needs.

applications in different fields

Our company’s products are suitable for various fields such as digital products, electrical appliances, medical, office equipment, power clocks, electromechanical, robotics, automotive, electronics, etc. We strive to create high-quality products in the industry.

Why Choose The Tongyi Metal?

Guangdong tongyi metal technology co., ltd. Is a leading brand specializing in the production of precision special steel. We offer a wide range of standard products and excel in providing custom steel grades, shape customization, and bulk orders to meet the stringent requirements of precision hardware parts processing. driving technological innovation and delivering high-quality metal materials and solutions to our clients.

We have 168 imported high-precision equipment and more than 30 core technicians.

Up to 30000 tons of metal materials can be produced annually

We collaborate with over 10000 strategic partners globally

production guarantee

The company has more than 100 production equipment imported from japan and 38 core technicians. Strictly implement iso9001 management system in the production process, import high-precision testing equipment can provide accurate data support to win customer trust and support with high quality and fast delivery.

Material high quality assurance

The same metal has 68 sets of measuring equipment imported from Japan, such as Mitoyo micrometer, straightness test, hardness tester, spectrometer, magnetic detector, etc. The outer diameter accuracy of the material is measured once every 5 minutes, and the quality is all qualified before packaging and shipping.

Precision Special Steel Source Factory

The same metal has 15 years of stainless steel rod/wire material research and development, design, production experience, foreign large strength manufacturers. Customized matching material solutions according to customer needs in various industries.

Common Questions

Most Popular Questions.

offers clear and concise answers to the most frequently asked questions about our stainless steel bars, ensuring you get the information you need quickly and efficiently.

We offer a variety of stainless steel, titanium alloy, quenched and tempered steel bars and wires, including 303, 304, 316, 410, and more. We can also customize the composition according to your requirements.

Yes, we can customize the length of stainless steel bars according to the specific requirements of our customers, reducing material waste and lowering costs.

Our stainless steel bars are widely used in various industries, including construction, automotive, medical devices, food processing, and aerospace.

We offer a variety of surface treatment options, including polishing, brushing, pickling, and mirror finishing, to meet different application needs.

We adhere to the ISO9001 quality management system, conducting strict quality control at every stage from raw material procurement to the production process, and we also offer third-party inspection services.

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Materials, appearance, dimensions, straightness, smoothness, etc. can be customized according to needs

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Materials, appearance, dimensions, straightness, smoothness, etc. can be customized according to needs