15-5 ph Stainless Steel Casting
15-5 PH Stainless Steel Investment Castings
15-5 PH is a precipitating hardness stainless steel with high strength, hardness, and corrosion resistance. It’s commonly hardened after casting through heat treatment to increase its strength.
Milwaukee Precision Casting, Inc. can cast 15-5 PH stainless steel with our investment casting process, also known as lost wax casting, for components with precise tolerance requirements and complex geometry.
Chemical Composition of 15-5 PH Stainless Steel:
- Carbon (C): ≤0.07%
- Chromium (Cr): 14.0-15.50%
- Copper (Cu): 2.5-4.50%
- Iron (Fe): Bal.
- Sulfur (S): ≤0.03%
- Nickel (Ni): 3.5-5.5%
- Manganese (Mn): ≤1.0%
- Silicon (Si): ≤1.0%
- Phosphorus (P): ≤0.04%
- Niobium (Nb) + Tantalum (Ta): 0.15-0.45%
Industries & Applications
Industries & Applications of 15-5 Investment Castings:
15-5 PH stainless steel is commonly used in industries & applications that require high strength and high corrosion resistance, including: Food processing, Pumps & Valves, Gears & shafts, Fasteners, Oil & gas.
What’s the Difference Between 17-4 and 15-5 PH Stainless Steel?
17-4 PH and 15-5 PH are both martensitic, precipitating hardness stainless steels; however, they display key differences in their properties. 17-4 contains approximately 17% chromium and 4% nickel, while 15-5 contains approximately 15% chromium and 5% nickel.
Compared to 17-4, 15-5 is a newer variant with increased toughness due to higher nickel content. This gives it improvements for components with high pressure or extreme temperature requirements. However, the higher levels of chromium in 17-4 may make for a better option in corrosive environments.
Additional Stainless Steel Grades
Benefits of using Milwaukee Precision Casting, Inc. for 15-5 Investment Castings:
With hundreds of years of combined experience, Milwaukee Precision Casting, Inc. has numerous options to produce the 15-5 investment castings you need.
In many cases, investment casting alone is sufficient to produce a finished part; however, we also offer several secondary services including CNC machining services at our machine shop, heat treatment, plating, and non-destructive testing.
- Can handle EAU volumes of 1,000,000+
- Capable of manufacturing complex cast components up to 50 lbs
- Rapid prototyping available
- ISO and ITAR certified facility
Request a quote for 15-5 stainless steel investment castings today!
Markets We Serve
Trusted by
Demanding Industries
Commercial Firearms & Military
Milwaukee Precision Casting, Inc. specializes in components for the firearm and gun industries through the investment casting process, producing military components, commonly for AR-15, M16, M240, and M249.
Power Transmission
Milwaukee Precision Casting, Inc. (MPC) is proud to serve the industry in many areas, producing power transmission component castings that pass stringent requirements for high-voltage substation power switching and storage equipment.
Medical
Investment castings used in medical-related applications require the highest degree of quality, cleanliness and surface finish.
Auto After Market
Milwaukee Precision Casting, Inc. has extensive exposure in the automotive aftermarket, the secondary market of the automotive industry. We specialize in the manufacturing of vehicle parts, tools, and accessories for light and heavy vehicles.
Food & Dairy
Milwaukee Precision Casting, Inc. plays a major role in the production of stainless steel investment castings used in the food & dairy industry.
Construction
Milwaukee Precision Casting, Inc. (MPC) produces construction component castings for tools and equipment used in the construction industry.
Meat Processing
Milwaukee Precision Casting, Inc. produces a wide array of standard and customized investment casting products for meat processing equipment, including meat grinder parts and special attachments for machinery.
Machine Tool
Milwaukee Precision Casting, Inc. produces quality investment castings for a wide range of applications in the machine tool industry.
Waste Management
Milwaukee Precision Casting, Inc. produces a wide array of standard and customized investment casting products for wastewater treatment equipment.
Mining
Milwaukee Precision Casting, Inc. has long supported the mining and earth-moving industry with mining investment castings built for tough, abrasive environments.
Logging
Milwaukee Precision Casting, Inc. produces a wide array of standard and customized investment casting solutions for the logging industry, including forestry equipment castings, heavy equipment castings, and off-highway machinery castings.
Oil & Gas
Investment castings used in the oil and gas industry must meet the highest standards of quality, durability, and corrosion resistance to withstand extreme operating conditions.Milwaukee Precision Casting produces stainless steel castings and A356 castings used in applications such as ramps, heavy-duty locks, flame and flow control, and even material removal fingers.
Utilities
Milwaukee Precision Casting, Inc. produces a wide array of standard and customized power generation investment castings for the utilities industry.
Agriculture
Agriculture equipment operates in tough, demanding environments, which is why investment castings have been a trusted solution in the industry for decades.
Petrochemical
At Milwaukee Precision Casting, Inc., we specialize in manufacturing high-performance investment castings for the petrochemical industry, where precision, durability, and safety are paramount.
Pumps & Valves
Milwaukee Precision Castings produces near-net shape, high-quality, durable investment castings for pumps and valves.
Linear Tolerances
The industry standard linear tolerances for any investment casting
process are ±.005 per
inch of length.
Geometric Tolerances
Effective part configuration is a critical element in achieving strict
tolerances for investment casting. Our team ensures a quality
experience in investment casting.
Minimal Lead Time
Built for complex applications requiring repeatable accuracy and tight dimensional control across production runs.
Accuracy of ± .005 per inch
ISO-certified quality systems with advanced inspection and full traceability from tooling to delivery.
AMS 2175 Compliance
Fast RFQ response, efficient tooling development, and scalable production capacity to meet your schedule.
Competitive Pricing
Cast, machine, finish, and inspect under one roof — reducing lead times and supply chain complexity.
ISO 9001:2015 Certified
DFM reviews and casting optimization from experienced engineers who understand your application requirements.
Advanced Inspection
X-ray, MPI, FPI, HIPing, and dimensional validation ensure every component meets your spec before shipment.
Get a Quote
Request a Precision
Casting Quote
We cast a broad range of alloys — from corrosion-resistant stainless grades to
high-strength tool steels — engineered for demanding industrial, defense, and
energy applications.
Fast RFQ Response
Typical quote turnaround within 1–2 business days
Engineering Support
DFM review and casting optimization included with every quote
Scalable Production
Prototype to high-volume production capability
Full Technical Consultation
Material selection, tolerance review, and process recommendations
