DUROX INDUSTRIAL

Extreme-Duty Fastener Solutions

Corrosion-resistant, high-temperature/high-pressure & low-temperature fasteners
8,000㎡ precision manufacturing facility · ISO9001 & ISO18000 certified

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5000t

Coating Capacity

5000h

Salt Spray Test

20+

Material Grades

100%

Full Inspection

core capabilities

Integrated Technical Capabilities

Premium Materials & Products

Complete range of alloy steel, stainless steel and carbon steel materials. Stock grades include B7, L7, B7M, L7M, A453 Gr.660, Inconel 625/718, S31803, S32750, S32760 and 20+ additional grades.

Threaded parts, studs, full-thread & double-end studs

Hex bolts/nuts, U-bolts & customized non-standard items

Supply to ASME, ISO, DIN, GOST, GB standards

Inconel Duplex Super Duplex A453

Advanced Surface Engineering

Complete base and top-coat combinations with robotic Xylan automatic coating lines. Salt spray testing up to 5000 hours, ensuring uniform thickness, adhesion and stable torque-tension performance.

Base Treatment

• Zinc Plating

• Zn-Ni Plating

• Phosphate/Sherardizing

Top Coating

• Xylan Series

• PTFE/FBE

• Ceramic Coating

5000h

Salt Spray

3000t

Spray Capacity

Precision Manufacturing

8,000㎡ modern facility with automated disc cutting, thread rolling, hydraulic hot forging, quench & temper furnaces ensuring batch consistency and rapid delivery.

Robotic automatic coating lines

Automated cutting/chamfering/threading

Hydraulic hot forging production lines

Solution treating & heat treatment systems

Quality Assurance

ISO9001 & ISO18000 certified systems, strict compliance with EN14399, Norsok M650, GOST R standards. Complete material + coating + manufacturing process testing and SPC control.

PT/MT

NDT Testing

100%

Thread Inspection

• Chemical composition & mechanical properties

• Low-temperature impact testing

• Coating thickness & adhesion verification

• Hydrogen embrittlement control & SPC

Proven Excellence

Evidence of Reliability

Trusted by leading companies across oil & gas, offshore, chemical and infrastructure sectors worldwide

Oil & Gas

Upstream, midstream & downstream applications

Offshore

Marine & subsea environments

Chemical

Petrochemical & process industries

Infrastructure

Bridges, buildings & civil engineering

Certifications & Standards

Internationally recognized quality and compliance

ISO

ISO Certified

ISO9001 Quality Management
ISO18000 Occupational Health & Safety

9001 18000

EN

European Standards

EN14399 Structural Bolting
Norsok M650 Coating Systems

EN14399 Norsok

GOST

International Standards

GOST R Russian Standards
ASME, DIN, GB Compliance

GOST ASME

Performance Verification

Salt Spray Resistance

Zn-Ni + Xylan System

5000h

ASTM B117

Temperature Range

Operating Environment

-196°C to 650°C

Material Dependent

Coating Adhesion

Cross-cut Test

5B

ISO 2409

Manufacturing Metrics

Annual Coating Capacity

Treatment Processing

5000t

Per Year

Quality Control

Thread Inspection

100%

Full Inspection

Material Grades

Stock Availability

20+

Ready Stock

Test Results & Documentation

Comprehensive testing and quality verification

Salt Spray Testing

5000-hour corrosion resistance verification

ASTM B117 5000h

Coating Analysis

Thickness uniformity and adhesion testing

ISO 2409 5B Grade

Material Certificates

Mill test certificates and traceability

EN 10204 3.1/3.2

Customer Success Stories

Trusted partnerships across critical industries

OG

Major Oil & Gas Operator

Offshore Platform Project

"DUROX INDUSTRIAL's Inconel 625 fasteners with Xylan coating have exceeded our expectations in harsh North Sea conditions. Zero failures after 3 years of operation, significantly reducing our maintenance costs."

3+ Years Zero Failures

CE

Chemical Engineering Contractor

Petrochemical Complex

"The Super Duplex S32760 bolts with specialized coating have performed flawlessly in our most corrosive environments. DUROX's technical support and rapid delivery made our project timeline possible."

Flawless Performance

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Get expert consultation and customized fastener solutions for your extreme-duty applications

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Fill out the form below to receive:

Customized material recommendations
Surface engineering specifications
FREE Technical Selection Guide (PDF)

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Project Requirements

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Direct Contact

Email

[email protected]

Phone

+86 189 6933 0553

Why Choose DUROX?

24-hour technical response time

End-to-end engineering support

ISO certified quality systems

Rapid prototyping & delivery

Emergency Support

Critical project support available 24/7

Emergency Hotline