17-4 PH Stainless Steel Stud Bolts Supplier & Exporter
Aurum Overseas is a trusted manufacturer and global supplier of precision-engineered industrial fastening solutions developed for critical engineering applications where exceptional mechanical strength, corrosion resistance, fatigue resistance, and long-term structural reliability are essential. We manufacture and export high-performance fastening systems supplied to aerospace manufacturers, oil and gas companies, offshore engineering contractors, defense industries, petrochemical companies, heavy engineering firms, and industrial procurement teams worldwide requiring dependable fastening products for demanding service environments.
17-4 PH Stainless Steel Stud Bolts are widely used in engineering systems requiring a unique combination of high tensile strength, excellent corrosion resistance, superior hardness, and outstanding mechanical stability under cyclic loading conditions. Unlike conventional stainless steel fastening materials, this precipitation hardening stainless steel grade provides significantly higher strength after heat treatment while maintaining excellent corrosion resistance in aggressive industrial environments.
At Aurum Overseas, all fastening products are manufactured according to international quality standards and supplied with dimensional verification reports, material traceability documents, inspection certificates, and export compliance documentation for global industrial buyers.
What are 17-4 PH Stainless Steel Stud Bolts?
17-4 PH Stainless Steel Stud Bolts are fully threaded industrial fastening components manufactured from precipitation hardening martensitic stainless steel alloy containing chromium, nickel, copper, and niobium. The term "PH" refers to precipitation hardening, a heat treatment process that significantly improves mechanical strength, hardness, fatigue resistance, and structural stability without compromising corrosion resistance.
These fastening systems are commonly installed with heavy hex nuts on both ends to create secure flange connections, structural fastening assemblies, rotating mechanical systems, offshore equipment, aerospace components, pressure systems, and industrial equipment requiring dependable mechanical fastening under high-load service conditions.
Industrial buyers commonly specify this material as ASTM A564 Grade 630 Stud Supplier requirements because the material offers exceptional strength-to-corrosion resistance balance. Because of its high-performance metallurgy, UNS S17400 Fasteners are extensively used in sectors where standard stainless steel fasteners cannot provide sufficient mechanical strength under demanding operational stress conditions.
17-4 PH Stainless Steel Stud Bolts Specifications
| Specification | Details |
|---|---|
| Standard Specification | ASTM A193 / ASME SA193 |
| Secondary Standard | ASTM A564 Grade 630 |
| International Standards | DIN, ISO, JIS, GB, IS, BS, ASTM |
| Size Range | M3 – M100 |
| Inch Sizes | 3/6″ – 4″ |
| Standard Length | 3 mm – 200 mm |
| Extended Length | Up to 1200 mm |
| Dimensions | DIN 931, 933, 934, 7991, 976 |
| ASME Dimensions | ASME B18.2.1, B18.3 |
| Custom Sizes | Available |
| Manufacturing Capability | Cold Forming, Hot Forging, CNC Machining |
Mechanical Properties of 17-4 PH Stud Fasteners
17-4 PH stainless steel is widely selected for applications requiring significantly higher mechanical strength compared to conventional stainless steel fastening materials.
| Property | 17-4 PH Stainless Steel |
|---|---|
| Tensile Strength | 930 – 1310 MPa |
| Yield Strength | 725 – 1170 MPa |
| Hardness | High |
| Fatigue Resistance | Excellent |
| Corrosion Resistance | Excellent |
| Wear Resistance | Excellent |
| Heat Treatability | Superior |
| Structural Strength | Excellent |
Chemical Composition of 17-4 PH Stud Material
The balanced alloy composition of 17-4 PH stainless steel provides high mechanical strength while maintaining corrosion resistance across demanding industrial environments.
| Element | Composition |
|---|---|
| Chromium | 15 – 17.5% |
| Nickel | 3 – 5% |
| Copper | 3 – 5% |
| Niobium | Present |
| Carbon | 0.07% Max |
| Manganese | 1.0% Max |
| Silicon | 1.0% Max |
| Iron | Balance |
Available Dimensions & Size Range of 17-4 PH Stud Bolts
We manufacture high-strength industrial fastening solutions suitable for aerospace systems, offshore engineering equipment, industrial pressure systems, heavy mechanical assemblies, structural applications, and rotating equipment requiring dependable fastening performance under demanding service conditions.
| Specification | Range |
|---|---|
| Diameter | M2 – M160 |
| Standard Size | M3 – M100 |
| Metric Diameter | M10 – M110 |
| Inch Diameter | 1/2″ – 4.0″ |
| Length | 3 mm – 1200 mm |
| CNC Machining Sizes | Up to M100 |
| Custom Manufacturing | Available |
Thread Options Available for Stainless Steel Stud Fasteners
Precision thread manufacturing directly influences tightening reliability, load distribution, assembly integrity, and long-term fastening performance in critical engineering systems exposed to vibration, cyclic loading, mechanical stress, and high structural loads. Aerospace assemblies, offshore equipment, pressure systems, rotating mechanical systems, and structural engineering applications require accurately machined thread configurations for dependable operational safety.
We manufacture industrial stud fasteners according to international engineering standards with multiple thread configurations based on application requirements.
- UNC Threads
- UNF Threads
- Metric Threads
- BSW Threads
- BSF Threads
- Fine Threads
- Coarse Threads
- Rolled Threads
- Cut Threads
- CNC Machined Precision Threads
- Custom Engineering Threads
Why 17-4 PH Stainless Steel Stud Bolts Are Used in High Strength Engineering Applications
Industrial applications operating under high mechanical stress, cyclic loading, vibration, structural tension, and demanding performance conditions require fastening materials capable of delivering superior strength without compromising corrosion resistance. Standard stainless steel fasteners often lack sufficient tensile strength for these engineering environments.
This is where 17-4 PH Stud Bolts provide a major advantage. The precipitation hardening metallurgy significantly improves tensile strength, hardness, wear resistance, and fatigue performance, making these fasteners highly suitable for aerospace systems, offshore engineering equipment, pressure systems, turbine assemblies, defense equipment, valve systems, and structural engineering projects requiring exceptional mechanical durability.
For industrial buyers evaluating specialized fastening materials for demanding engineering environments, alternative high-performance grades such as SS 904L Stud Bolts and SMO 254 (6MO) Studs are also widely selected depending on corrosion resistance requirements, operating conditions, and mechanical load specifications.
Industries Using 17-4 PH Stud Fasteners
Because of excellent mechanical strength, fatigue resistance, and corrosion resistance, 17-4 PH fastening systems are widely used in critical industrial sectors.
| Industry | Application |
|---|---|
| Aerospace Industry | Structural assemblies |
| Offshore Engineering | Mechanical fastening systems |
| Oil & Gas | Pressure equipment |
| Petrochemical | Valve systems |
| Defense Industry | High strength assemblies |
| Power Plants | Turbine fastening systems |
| Heavy Engineering | Structural applications |
Global Supply Solutions for Precision Engineering Projects
Aurum Overseas supplies industrial fastening solutions to buyers across Germany, France, Italy, Netherlands, Belgium, Spain, Poland, and the United Kingdom, supporting aerospace manufacturers, heavy engineering companies, industrial maintenance contractors, petrochemical companies, and infrastructure contractors requiring certified fastening systems for high-performance engineering applications.
We also supply fastening products across United States, Canada, UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, Singapore, Malaysia, South Korea, and Australia, supporting offshore contractors, EPC procurement companies, defense manufacturers, industrial engineering firms, and oil and gas operators requiring export-ready fastening solutions supported by inspection reports and complete material traceability documentation.
Why Choose Aurum Overseas
Aurum Overseas supports industrial buyers worldwide with certified stainless steel fastening solutions manufactured for demanding industrial engineering applications. Our products are supplied with complete traceability, inspection reports, material certificates, and export documentation.
With extensive experience in international supply chains and industrial metallurgy, we serve EPC contractors, offshore engineering companies, aerospace manufacturers, petrochemical companies, heavy engineering firms, and industrial procurement teams requiring dependable fastening solutions for critical engineering applications.
Frequently Asked Questions
1. What are 17-4 PH Stainless Steel Stud Bolts?
17-4 PH Stainless Steel Stud Bolts are high-strength precipitation hardening stainless steel fastening
products designed for industrial applications requiring exceptional tensile strength, hardness, fatigue
resistance, and corrosion resistance.
2. What is ASTM A564 Grade 630 Stud material?
ASTM A564 Grade 630 Stud specification refers to precipitation hardening stainless steel material
commonly used in high-strength industrial fastening systems requiring superior mechanical
performance.
3. What are Grade 630 Studs?
Grade 630 Studs are industrial fastening products manufactured using 17-4 PH stainless steel alloy
widely used in aerospace systems, offshore engineering equipment, and structural assemblies.
4. What are UNS S17400 Fasteners?
UNS S17400 Fasteners are high-performance precipitation hardening stainless steel fastening components
designed for demanding engineering applications requiring superior mechanical durability.
5. Where are 17-4 PH Stud Bolts commonly used?
17-4 PH Stud Bolts are widely used in aerospace systems, offshore engineering, turbine systems, defense
equipment, structural engineering projects, oil and gas systems, and heavy mechanical assemblies.
6. Do you export internationally?
Yes. Aurum Overseas exports certified industrial fastening products globally with complete inspection
documentation, material traceability reports, and export compliance support.
Request Technical Support & Pricing
If you are sourcing high-strength industrial fastening solutions for critical engineering applications, our team can assist with material selection, technical specifications, project requirements, and commercial quotations based on application requirements.
Contact Aurum Overseas for product availability, technical assistance, and bulk procurement support for domestic and international industrial supply requirements.
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