Focused on Specialty Alloy Fastener Manufacturing
Chengge manufactures custom high-temperature and corrosion-resistant alloy fasteners according to drawings and project specifications, including bolts, studs, nuts, washers, threaded rods and non-standard machined parts.
Who We Are
Chengge is a manufacturer focused on specialty alloy fasteners for demanding industrial applications. We supply bolts, studs, nuts, washers, threaded rods and custom fastener parts according to customer drawings, material grades, standards and project requirements. Our products are used where ordinary fasteners may not meet the requirements for heat resistance, corrosion resistance, strength or long-term reliability.
Our manufacturing work is built around special materials, precision machining, batch traceability and practical engineering support. We work with stainless steel, duplex and super duplex stainless steel, nickel alloys, titanium alloys and high-strength alloy steels, supporting both standard fastener types and non-standard drawing-based components. From material selection to machining, threading, inspection and packing, each step is controlled to support stable quality and clear project delivery.
Chengge supports customers in industries such as chemical processing, oil and gas, marine engineering, power generation, valves, pumps, heat exchangers and heavy equipment. For project-based purchasing, we can provide matched bolt, nut and washer sets, material traceability, inspection records and EN 10204 3.1 MTC where required. Our goal is to help customers source reliable specialty alloy fastening solutions for harsh environments and critical equipment service.
Specialty Alloy Fastener Solutions
We focus on custom fasteners, special alloy materials and project-based manufacturing support for demanding industrial applications.
Specialty Alloy Fasteners
Bolts, studs, nuts, washers and threaded rods manufactured in nickel alloys, duplex stainless steel, titanium alloys and other special materials.
Drawing-Based Custom Parts
Non-standard fasteners manufactured according to drawings, samples or technical specifications.
Matched Fastener Sets
Bolts, nuts and washers supplied as complete matched sets according to project requirements.
Project Documentation Support
MTC, EN 10204 3.1, inspection records and material traceability available when required.
MANUFACTURING
From material selection to final packing, our process is designed to support stable production, traceable delivery and project-specific manufacturing requirements.
Our Manufacturing Approach
Material Selection
Select suitable alloy materials according to grade, standard and project requirements.
Cutting
Cut raw materials according to required size and production plan.
Forming / Forging
Support forming, forging or machining routes according to product type and quantity.
Precision Machining
Machining for dimensions, head type, shank size and drawing-based features.
Threading / Heat Treatment
Thread rolling or cutting, with heat treatment arranged according to material and project needs.
Inspection & Packing
Final inspection, marking, documentation and export packing before shipment.
Material Expertise for Specialty Alloy Fasteners
Material capability is one of the key parts of specialty alloy fastener manufacturing. Chengge supports multiple alloy families according to application environment, strength requirement and corrosion condition.
Nickel Alloys
Duplex & Super Duplex Stainless Steel
Super Austenitic Stainless Steel
Titanium & Titanium Alloys
Precipitation-Hardening Stainless Steel
High-Temperature & Stabilized Austenitic Stainless Steel
Controlled Quality from Material to Shipment
Specialty alloy fasteners are often used in critical equipment. That is why material verification, dimensional control, thread inspection and batch traceability are important parts of our production process.
- Material Grade Verification
- PMI / Spectrometry Inspection
- Dimensional Inspection
- Thread Inspection
- Hardness Testing
- Tensile Testing
- Mechanical Testing
- Surface & Appearance Check
Material documents and EN 10204 3.1 MTC can be provided according to project requirements.
Industries We Serve
Our specialty alloy fasteners are used in industries where heat, corrosion, pressure, seawater exposure or high strength requirements are involved.
Chemical & Petrochemical
Corrosion-resistant fastening for aggressive process media.
Oil & Gas
High-pressure and high-strength connections for critical systems.
Marine & Offshore
Seawater-resistant alloys for offshore and marine service.
Power Generation
Heat-resistant fasteners for turbines and high-temperature equipment.
Valves, Pumps & Heat Exchangers
Matched fastener sets for pressure-critical equipment.
Aerospace & High-Temperature Equipment
High-strength, heat-resistant fasteners for aerospace and high-temperature equipment applications.
Why Choose Chengge
Chengge focuses on specialty alloy fasteners for demanding industrial applications, combining material expertise, custom manufacturing and quality control to support global industrial projects.
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Specialty Alloy Expertise Focused on stainless steel, duplex steel, nickel alloys, titanium and alloy steels.
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Custom Manufacturing Capability Standard and drawing-based fasteners made to project requirements.
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Material Traceability Heat numbers and batch records tracked from material to shipment.
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Matched Fastener Sets Bolts, studs, nuts and washers supplied as complete matched sets.
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Strict Quality Control PMI, dimensions, threads and final inspection checked by batch.
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Export Documentation Support MTC, inspection reports and export documents available on request.
A closer look at our materials, machining, inspection and packing process.
Inside Our Factory
SPECIALTY ALLOY FASTENERS,
Direct from Manufacturer.Send us your specifications, standards, or drawings. Our engineering team will review your requirements and provide a detailed quote within 12 hours.
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