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Material

CNC Machined Stainless Steel

Lead Time
5 - 22 Days
Cost

$$$

Tolerances
± 0.005 in

Description

Stainless steel is a fantastic material with a minimum of 10.5% chromium content. It is shaped using specialized techniques such as turning, drilling, milling, and grinding. This material has exceptional strength, durability, and corrosion and heat resistance, making it the preferred choice for various industrial applications. The aerospace, automotive, chemical, and medical sectors rely heavily on stainless steel parts because of their outstanding performance and reliability.

 

Machined stainless steel key characteristics

Characteristics may vary depending on the grade/alloy.

  • Biocompatible
  • Chemical Resistant
  • Corrosion Resistant 
  • High Ductility 
  • High Strength
  • Temperature Resistant
  • Wear Resistant

Machined stainless steel applications

  • Aerospace Parts
  • Appliances 
  • Automotive Exhaust Systems
  • Brake Components
  • Food Processing Machinery
  • Medical Equipment
  • Surgical Instruments

Industries that use machined stainless steel

  • Aerospace & Defense
  • Automotive
  • Consumer Products
  • Industrial
  • Medical, Dental, & Sciences
Why should you choose machined stainless steel for your project?

Stainless steel is ideal for many commercial and industrial applications due to its excellent corrosion resistance, high strength, and durability. Stainless steel is also highly resistant to extreme temperatures, making it a popular choice in harsh environments. Stainless steel parts are accurate and precise, with a superior finish that ensures long-lasting performance. It is also a versatile material that is easily fabricated and machined to meet various complex requirements. Whether you need parts for machinery, medical equipment, or heavy engineering applications, stainless steel delivers outstanding value for your investment. Its resistance to stress, cracking, wear, and low maintenance requirements make it an excellent choice for various projects. Choosing stainless steel ensures that your parts or equipment will perform reliably and meet the highest quality standards.

Finishes for machined stainless steel

Depending on the desired appearance and function, several finishes are available for stainless steel. One standard finish is the unpolished or matte finish, which is achieved by grinding the surface with abrasives until a smooth, consistent surface is achieved. This finish is commonly used for industrial applications where a smooth surface is required for further processing. Another popular finish is the brushed finish, which polishes the surface with progressively finer abrasive pads until a subtle, satin-like appearance is achieved. This finish is often used in architectural applications such as handrails and fixtures. A mirror finish can also be achieved by polishing with progressively finer abrasive compounds until a smooth, reflective surface is achieved. This finish is commonly used in decorative applications such as jewelry and high-end appliances. Finally, a passivated finish can be applied to stainless steel to improve its corrosion resistance and overall durability.

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Grades/Alloys

Stainless Steel 15-5PH

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 115000-190000

Fatigue Strength (PSI): 95000-160000

Hardness (Brinell): 255-388

Milled Parts Machinability (AISI Rating): 45%

Stainless Steel 17-4PH

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 115000-190000

Fatigue Strength (PSI): 75000-90000

Hardness (Brinell): 255-388

Milled Parts Machinability (AISI Rating): 45%

Stainless Steel 17-7PH

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 170000

Fatigue Strength (PSI): 42000

Hardness (Brinell): 180

Milled Parts Machinability (AISI Rating): 75%

Stainless Steel 303

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 87000-100000

Fatigue Strength (PSI): 33000-52000

Hardness (Brinell): 170-210

Milled Parts Machinability (AISI Rating): 75%

Stainless Steel 304

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 84000-170000

Fatigue Strength (PSI): 30000-63000

Hardness (Brinell): 170-360

Milled Parts Machinability (AISI Rating): 40%

Stainless Steel 304L

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 78000-170000

Fatigue Strength (PSI): 25000-62000

Hardness (Brinell): 160-350

Milled Parts Machinability (AISI Rating): 40%

Stainless Steel 316

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 76000-170000

Fatigue Strength (PSI): 30000-63000

Hardness (Brinell): 160-350

Milled Parts Machinability (AISI Rating): 36%

Stainless Steel 316L

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 77000-170000

Fatigue Strength (PSI): 25000-65000

Hardness (Brinell): 160-350

Milled Parts Machinability (AISI Rating): 36%

Stainless Steel 321

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 85000-100000

Fatigue Strength (PSI): 32000-40000

Hardness (Brinell): 170-210

Milled Parts Machinability (AISI Rating): 36%

Stainless Steel 347

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 89000-100000

Fatigue Strength (PSI): 32000-40000

Hardness (Brinell): 160-201

Milled Parts Machinability (AISI Rating): 36%

Stainless Steel 410

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 76000-110000

Fatigue Strength (PSI): 28000-50000

Hardness (Brinell): 190-240

Milled Parts Machinability (AISI Rating): 54%

Stainless Steel 416

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 75000-120000

Fatigue Strength (PSI): 33000-50000

Hardness (Brinell): 230-320

Milled Parts Machinability (AISI Rating): 50%

Stainless Steel 420

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 100000-250000

Fatigue Strength (PSI): 33000-97000

Hardness (Brinell): 190

Milled Parts Machinability (AISI Rating): 50%

Stainless Steel 420F

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 110000

Fatigue Strength (PSI): 39000

Hardness (Brinell): 230

Milled Parts Machinability (AISI Rating): 68%

Stainless Steel 430

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 75000

Fatigue Strength (PSI): 75000

Hardness (Brinell): 160

Milled Parts Machinability (AISI Rating): 66%

Stainless Steel 430F

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 79800

Fatigue Strength (PSI): 30000

Hardness (Brinell): 170

Milled Parts Machinability (AISI Rating): 75%

Stainless Steel 440C

Heat Treatable: Yes

Tensile Strength (Ultimate, PSI): 100000-290000

Fatigue Strength (PSI): 38000-120000

Hardness (Brinell): 222

Milled Parts Machinability (AISI Rating): 40%