PH13-8Mo Stainless Steel Bar
read more
PH Stainless Steel
PH Stainless Steel — Precipitation-Hardening High-Strength Solution
PH stainless steel, also known as Precipitation-Hardening Stainless Steel, is a high-strength, corrosion-resistant alloy designed for demanding applications where both excellent mechanical properties and durability are required. Through controlled heat treatment—solution treatment, quenching, and aging—PH stainless steels achieve exceptional hardness and strength unmatched by standard stainless steels.
mailongmetals supplies a full range of PH stainless steel grades, including:
17-4PH (AISI 630), 15-5PH, 13-8Mo, 17-7PH, 17-4LH
And other special grades according to customer requirements.
Our products fully comply with ASTM, AMS, JIS, GB, and other international standards, offering reliable performance in aerospace, petrochemical, nuclear, marine, and precision machinery industries.
17-4PH (AISI 630), 15-5PH, 13-8Mo, 17-7PH, 17-4LH
And other special grades according to customer requirements.
Our products fully comply with ASTM, AMS, JIS, GB, and other international standards, offering reliable performance in aerospace, petrochemical, nuclear, marine, and precision machinery industries.
15-5PH Stainless Steel Sheet
read more
17-7PH Stainless Steel Bar
read more
Features & Advantages
- High Strength After Aging Treatment
Strength levels far exceed those of standard stainless steels, making them ideal for high-load components. - Excellent Corrosion Resistance
Comparable to 304 and 316 stainless steel in most industrial and marine environments. - Good Toughness & Fatigue Resistance
Maintains mechanical integrity under cyclic loads and harsh service conditions. - Precision, Stability & Low Deformation
PH steels retain dimensional accuracy after heat treatment, suitable for precision-engineered parts. - Wide Range of Mechanical Properties
Mechanical strength can be adjusted by varying aging temperature (H900, H1025, H1150, etc.). - Good Machinability
Better machinability than austenitic stainless steel after aging hardening.
Common Grades & Highlights
- 17-4PH (AISI 630 / UNS S17400)
- Most widely used PH grade
- High strength + good corrosion resistance
- Suitable for aerospace, chemical equipment, valves, and shafts
- 15-5PH (UNS S15500)
- Better toughness than 17-4PH
- Clean microstructure, excellent strength
- Common in aircraft components, nuclear power, and high-pressure systems
- 13-8Mo (UNS S13800)
- Exceptional toughness
- Excellent stress-corrosion cracking resistance
- Used in military aerospace, structural parts
- 17-7PH (UNS S17700)
- High strength + high-temperature stability
- Ideal for springs, diaphragms, and precision mechanical parts
Applications
- Chemical processing: reactors, heat exchangers, scrubbers
- Waste treatment and desulfurization (FGD) systems
- Pharmaceutical and biotech plants
- Pulp & paper bleaching systems
- Offshore & marine environments
- Pickling line equipment and fertilizer plants
Processing & Packaging
Water jet, plasma or laser cutting
Pipe threading, grooving, welding (GTAW)
Surface pickling, brushing, mirror polishing
Wood box packaging with desiccant
ID barcode, heat number, test report per bundle or coil
Why Buy From mailongmetals?
- Full stock of Incoloy 800/825 pipe, sheet, bar & wire
- Cut-to-length, threading, CNC machining service
- Weldability guidance + filler suggestions (e.g., ERNiCrMo-3)
- Precision forging + solution annealing available
- Corrosion simulation & technical support
- Global supply network with fast dispatch
1. What are Incoloy alloys? −
Incoloy alloys are high-performance nickel–iron–chromium alloys designed for excellent corrosion resistance, high-temperature strength, and long-term durability in harsh industrial environments.
2. What industries commonly use Incoloy alloys? +
They are widely used in petrochemical plants, heat-treatment equipment, offshore oil and gas systems, power generation, aerospace components, and marine engineering.
3. How are Incoloy alloys different from Inconel alloys? +
Incoloy contains more iron, making it more cost-effective for high-temperature and corrosion-resistant applications, while Inconel provides higher strength at extreme temperatures.
4. What are the most popular grades of Incoloy? +
Common grades include Incoloy 800, 800H, 800HT, 825, 901, and 925, each offering specific resistance to oxidation, acids, stress corrosion, and elevated temperatures.
5. Can Incoloy alloys withstand high temperatures? +
Yes. Grades like Incoloy 800H/800HT perform exceptionally well between 600–1100°C, offering excellent structural stability and oxidation resistance.
6. Are Incoloy alloys resistant to acid corrosion? +
Incoloy 825 and 925 are specifically designed for resistance to sulfuric acid, phosphoric acid, seawater, and chloride-related corrosion.
7. What product forms are available for Incoloy alloys? +
They are available in plates, sheets, coils, bars, rods, wires, tubes, fittings, and customized machined parts.
8. Can Incoloy alloys be welded easily? +
Yes. Incoloy alloys generally have good weldability using TIG, MIG, or SMAW methods, though proper pre-cleaning and heat control are recommended.
9. Do Incoloy alloys require special heat treatment? +
Some grades require solution annealing or stabilization treatments to achieve optimal mechanical properties and corrosion resistance.
10. How do I select the right Incoloy grade for my project? +
Selection depends on operating temperature, chemical environment, mechanical load, and required corrosion resistance. Providing your application details helps engineers recommend the best grade.
Whether You're Building A Heat Exchanger, Chemical Reactor, Or Marine Component, XuRui Offers Top-Quality Incoloy Materials With Full Certification And Global Delivery.