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Precision Flanges & Forgings
Engineered for Excellence

Kinhi Tech Co., Limited is a trusted manufacturer and exporter of high-quality carbon flanges, stainless flanges, and customized forgings, serving global industries with ISO-certified precision and reliability.

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Flanges Only

Our exclusive focus ensures unmatched expertise and quality in every flange we produce.

Custom Forgings

Tailored to your exact specifications, from material grade to dimensional precision.

ISO 9001:2008

Certified quality management ensures consistency, traceability, and compliance.

About Kinhi Tech

Kinhi Tech Co., Limited is a specialized manufacturer and exporter focused exclusively on high-performance flanges and customized forgings. With years of experience and a commitment to precision engineering, we deliver components that meet the most demanding industrial standards.

Our dedication to quality is reflected in our ISO 9001:2008 certification and adherence to international norms including ANSI/ASME, API, EN, DIN, BS, JIS, and KS. Every product undergoes rigorous testing and inspection to ensure mechanical integrity and long-term reliability.

4,000 kg Max Weight

Capable of producing large-scale forged components for heavy-duty applications.

OD 5000mm Max

Supports oversized ring and disk forgings for specialized industrial needs.

Kinhi Manufacturing Facility

Our Products

High-performance industrial components built to exacting standards

Carbon Flanges

Carbon Flanges

High-strength carbon steel flanges for critical pipeline connections in oil & gas, petrochemical, and power generation industries.

  • Materials: ASTM A105, A350 LF2, A694 F42-F70
  • Sizes: 1/2" to 60", CL250 to CL2500
  • Standards: ANSI, API, EN, DIN, JIS
  • Max Weight: 4000 kg
Stainless Flanges

Stainless Flanges

Corrosion-resistant stainless steel flanges ideal for chemical processing, marine, and high-purity environments.

  • Materials: A182 F304/L, F316/L, F321, F316Ti
  • Sizes: 1/2" to 60", CL250 to CL2500
  • Standards: ANSI, API 6A/17D, EN, BS, KS
  • Certification: PED TUV, AD-2000 W0
Customized Forgings

Customized Forgings

Precision-engineered forgings made to your drawings and specifications for unique industrial applications.

  • Types: Disks, Rings, Cylinders, Shafts
  • Max OD: 5000 mm
  • Max Weight: 4000 kg
  • Materials: Carbon, Alloy, Low-Temp Steels
High Yield Strength Flanges

High Yield Flanges

Engineered for high-pressure environments with superior strength and fatigue resistance.

  • Grades: A694 F42, F46, F52, F56, F60, F65, F70
  • Pressure: Up to 20,000 psi (API)
  • Applications: Subsea, Wellhead, Pipeline
  • Testing: Full QC & NDT per API standards
Low Temperature Alloy Flanges

Low Temp Alloy Flanges

Designed for cryogenic and arctic conditions with excellent toughness at sub-zero temperatures.

  • Materials: AISI 4130/4140, 16Mo3, 25CrMo4
  • Standards: ASTM A350 LF2, EN 10222
  • Charpy Testing: -46°C to -101°C impact
  • Certification: TUV, PED, AD-2000
Large Diameter Forgings

Large Diameter Forgings

Specialized production of oversized forged rings and cylinders for heavy industrial equipment.

  • Max OD: 5000 mm (196 inches)
  • Processes: Ring Rolling, Open Die Forging
  • Applications: Wind Turbines, Pressure Vessels
  • Traceability: Full material certification
API 6A Flanges

API 6A Flanges

Wellhead and Christmas tree components built to API 6A and 17D specifications for oil & gas extraction.

  • Pressure Ratings: 2000 to 20,000 psi
  • Sizes: 1 13/16" to 30"
  • Testing: Hydrostatic, NDT, PMI
  • Compliance: API Monogram Licensed
Custom Machined Forgings

Custom Machined Forgings

Integrated forging and CNC machining for complex geometries and tight tolerances.

  • Capabilities: CNC Turning, Milling, Drilling
  • Tolerances: ±0.05 mm typical
  • Finishes: As-forged, Machined, Shot Blasted
  • Inspection: CMM, Optical Comparators

Why Choose Kinhi?

We combine technical excellence with customer-focused service

Certified Quality

ISO 9001:2008 certified with full material traceability and PED TUV/AD-2000 W0 compliance.

High Forging Ratio

Ensures superior mechanical properties and internal structure for enhanced durability.

One-Stop Supply

Integrated sourcing for fittings, pipes, and valves to simplify your procurement.

Cost Savings

Reduce purchasing costs and avoid communication complexity with our value-added service.

4,000 kg
Max Product Weight
5,000 mm
Max Outer Diameter
60"
Flange Size Range
20,000 psi
Max Pressure Rating

Frequently Asked Questions

What materials do you offer for carbon flanges?

We supply regular carbon steels (ASTM A105, A350 LF2), high yield strength grades (A694 F42-F70), and low-temperature alloys (AISI 4130/4140, 16Mo3, 25CrMo4, 35CrMo, 42CrMo4).

Do you manufacture API 6A flanges?

Yes, we produce API 6A and 17D flanges in sizes from 1 13/16" to 30" and pressure ratings from 2000 psi to 20,000 psi.

What is your maximum forging capacity?

Our maximum forging size is OD 5000 mm with a finished weight up to 4000 kg. We produce forged disks, rolled rings, cylinders, and custom shapes.

Are your products certified?

Yes, our materials are PED TUV and AD-2000 W0 certified, and our quality management system is ISO 9001:2008 certified.

Do you offer customized forgings?

Yes, we specialize in customized forgings based on customer drawings and specifications, including material grade, dimensions, and mechanical properties.

Get in Touch

Contact Kinhi Tech Co., Limited for inquiries, quotes, and technical support.

Website

www.kinhi.com

Phone

+86 592 5932665

Fax

+86 592 3778680

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