HAYNES 188 Alloy Flange

Material:	Cobalt-Nickel-Chromium-Tungsten Alloy
Appearance:	Silvery metallic solid
Standard:	UNS R30188
Size:	Customized

 

roduct Description

HAYNES 188 alloy flange is a high-performance, cobalt-based superalloy component designed for extreme heat and oxidative environments. With a carefully balanced composition of cobalt, nickel, chromium, and tungsten, it delivers superior high-temperature strength, oxidation resistance, and thermal stability. This alloy flange is widely used in aerospace, gas turbines, chemical processing, and high-temperature exhaust systems, where durability and reliability under extreme conditions are critical.

 

Features & Properties

✔ High-Temperature Strength – Maintains excellent mechanical properties up to 1095°C (2000°F).
✔ Superior Oxidation & Corrosion Resistance – Resists scaling and degradation in harsh environments.
✔ Excellent Thermal Stability – Withstands prolonged exposure to extreme heat without significant microstructural changes.
✔ Good Fabricability – Can be welded, machined, and formed into custom configurations.

 

Applications & Related Industries

🔹 Aerospace Industry – Jet engines, afterburners, combustion liners.
🔹 Gas Turbine Components – Industrial power turbines, exhaust ducts.
🔹 Chemical Processing Equipment – High-temperature reactors, heat exchangers.
🔹 Marine & Defense – Engine exhaust components, propulsion systems.

 

Synonyms

✅ Alloy 188 Flange
✅ UNS R30188

 

Health & Safety Information

⚠ Avoid inhaling dust or fumes during machining and welding.
⚠ Use proper protective equipment when handling.
⚠ Follow industry safety protocols for high-temperature alloy components.

 

Production Method & Equipment

HAYNES 188 alloy flanges are manufactured through precision forging, heat treatment, and machining. The production process includes:
✔ Vacuum Induction Melting (VIM) & Vacuum Arc Remelting (VAR) for high purity.
✔ Hot forging and heat treatment to enhance mechanical properties.
✔ Precision CNC machining for dimensional accuracy.
✔ Non-destructive testing (NDT) for quality assurance.

Size & Customization

✔ Size: Fully customizable based on application requirements.
✔ Types: Slip-on, Weld Neck, Long Weld Neck, Blind, Socket Weld, Threaded, Lap Joint, Ring Joint, Spectacle Blind, and Custom Flanges.

 

Certifications & Quality Assurance

✅ Conforms to ASTM, JIS, GB, EN, and BS standards
✅ Certified to UNS R30188
✅ Undergoes strict quality control, including chemical composition and mechanical property testing

 

Lead Time & MOQ

🚀 Lead Time: Varies based on order quantity and specifications
📦 MOQ: Contact for minimum order requirements

 

FAQs

🔹 What temperature range can HAYNES 188 flanges withstand?
HAYNES 188 alloy flanges maintain stability at temperatures up to 1095°C (2000°F).

🔹 Is HAYNES 188 suitable for corrosive environments?
Yes, it provides excellent oxidation and corrosion resistance, making it ideal for extreme industrial settings.

🔹 Can HAYNES 188 flanges be customized?
Yes, sizes, shapes, and types of flanges can be customized according to specific project requirements.

 

How to Choose the Product

When selecting HAYNES 188 alloy flanges, consider:
✅ Required operating temperature
✅ Oxidation and corrosion resistance needs
✅ Mechanical strength and load-bearing capacity
✅ Compatibility with piping systems and industrial requirements

 

Product Specifications

✔ Material: Cobalt-Nickel-Chromium-Tungsten Alloy
✔ Density: 9.14 g/cm³
✔ Melting Point: 1330-1410°C (2425-2570°F)
✔ Tensile Strength: ≥850 MPa
✔ Hardness: Rockwell B80-B90

 

Production & Quality Control

HAYNES 188 flanges undergo:
✅ Vacuum melting and forging for high-purity material
✅ Ultrasonic and X-ray testing to detect internal flaws
✅ Dimensional accuracy checks to meet industry standards

 

Shipping & Delivery Information

📦 Packaging: Secure wooden crates or custom protective packaging
🚚 Shipping: Air, sea, or express delivery options available
📅 Delivery Time: Based on order quantity and customization

 

Environmental Impact & Sustainability

♻ Recyclable Material – Supports sustainable manufacturing and waste reduction.
♻ Eco-friendly production processes minimize emissions and material wastage.

 

Maintenance & Care Instructions

✅ Store in a dry environment to prevent oxidation before use.
✅ Handle with care to avoid surface contamination.
✅ Follow proper machining and welding guidelines for best performance.

 

Contact Us

For inquiries, custom orders, or further product details, please reach out to our team. 🚀

 

Standard Flange Types

● Blind Flange

● Threaded Flange

● Weld Neck Flange

● Long Weld Neck Flange

● Slip on Flange

● Socket Weld Flange

● Lap Joint Flange

● Ring Joint Flange

● Spectacle Blind Flange

Chemical Composition

Element	Percent by Weight
Carbon	0.05 - 0.15%
Manganese	1.25% max
Silicon	0.20 - 0.50%
Chromium	20.0 - 24.0%
Nickel	20.0 - 24.0%
Tungsten	13.0 - 16.0%
Lanthanum	0.02 - 0.12%
Boron	0.015% max
Iron	3% max
Cobalt	Balance

Mechanical Properties

Yield Strength		Tensile Strength		Elongation
ksi	MPa	ksi	MPa	%
65	446	140	963	55

Physical Properties

Density	0.330 lb/in³ 9.14 g/cm³
Melting Range	2375-2425 °F 1300-1330 °C
Specific Heat	0.097 at 70 °F, Bru/lb °F 405 at 21 °C, J/kg °C
Permeability	1.0007 at 200 oersted
Coefficient of Expansion	6.6 0-200 °F, 10¯⁶ in/in•°F
Thermal Conductivity	84 Btu•in/ft²•h•°F W/wm•°C
Electrical Resistivity	613 ohm•circ mil/ft 102.0 microhm-cm

 

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