3/4 Inch Black Malleable Cast Iron Floor Flange NPT Thread China Factory Suppliers

High-quality 3/4 inch black malleable cast iron floor flanges from a leading China factory. Our HH brand fittings feature precision NPT threading and ISO9001 certification. As professional suppliers in Hebei, we provide durable, corrosion-resistant solutions for industrial pipelines and DIY furniture.

SupplierHebei Hanghong Trading Co., Ltd.www.hhomedecor.com

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About this product

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Our 3/4" Black Malleable Cast Iron Pipe Floor Flanges are engineered for superior strength and versatility, featuring precision-cut NPT threads for a secure, leak-proof connection. Designed to provide a stable base for piping systems, these flanges are ideal for both industrial applications and creative DIY structural projects, combining rugged durability with a classic industrial aesthetic.

Manufactured under strict ISO9001:2008 standards, these floor flanges are crafted from high-grade malleable iron to ensure high impact resistance and longevity. Whether you are constructing custom industrial furniture like bookshelves and tables or managing steam, gas, and oil pipelines, our fittings deliver the reliability and professional finish required for global commercial standards.

Detailed Parameters

Material	Malleable Cast Iron	Size	3/4 Inch
Thread Type	NPT / Female Threaded	Surface Treatment	Black / Hot Dipped Galvanized / Electric Galvanized
Technics	Precision Casting	Shape	Equal / Hexagon Head
Standards	ANSI/ASME B16.3 / ISO 49 / DIN 2950	Certificates	ISO9001: 2008
Usage	DIY Furniture, Gas, Oil, Steam Pipelines	Supply Capacity	300 Tons per Month

Key Advantages

High Durability

Made from premium malleable iron, ensuring extreme resistance to wear and high-pressure environments.

Corrosion Resistance

Available in various surface treatments including oil-rust and galvanized coatings to prevent oxidation.

Precision Threading

Accurate NPT threading ensures a tight, seamless fit with matching pipes, reducing installation time.

Industrial Aesthetic

Perfect for the "Industrial Look" in modern furniture, including beds, tables, and clothing racks.

Global Standards

Fully compliant with ANSI, ASME, and DIN standards for international compatibility.

Easy Installation

Simple screw-in design allows for rapid assembly without the need for complex welding tools.

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Management Platforms

Quality Control

Strict adherence to ISO9001:2008 with rigorous testing for material strength and thread precision.

Manufacturing Process

Advanced casting techniques ensuring uniform wall thickness and structural integrity.

Customization

Flexible surface treatment options including Hot Dipped Galvanized and Electric Galvanized.

Logistics Optimization

Strategic shipping from major ports like Tianjin, Shanghai, and Qingdao for fast delivery.

Packaging Standards

Secure packaging in cartons or wood cases with plastic film to prevent transit damage.

Supply Chain

Large scale production capacity of 300 tons per month to support high-volume orders.

Investment Return Comparison

Feature	Standard Cast Iron	HangHong Malleable Iron
Impact Resistance	Low (Brittle)	High (Ductile)
Thread Precision	Moderate	High (NPT Standard)
Corrosion Life	Short-term	Long-term (Galvanized)
Load Capacity	Standard	Superior
Installation Speed	Moderate	Rapid (Precision Fit)

Frequently Asked Questions

Q: What is the difference between cast iron and malleable iron fittings?

Malleable iron undergoes a heat treatment process that removes internal stresses and makes the metal less brittle and more durable than standard gray cast iron, making it ideal for structural and high-pressure uses.

Q: Can these floor flanges be used for indoor furniture?

Yes, they are highly popular for DIY furniture projects such as industrial-style clothing racks, bookshelves, and tables due to their strength and aesthetic appeal.

Q: What surface treatments do you offer for corrosion protection?

We offer several options including Hot Dipped Galvanized, Electric Galvanized, and Oil-rust coatings depending on your environmental requirements.

Q: Are the threads compatible with American NPT standards?

Yes, our floor flanges are manufactured to ANSI/ASME B1.20.1 standards, ensuring full compatibility with standard NPT threaded pipes.

Q: What is the lead time for large wholesale orders?

For quantities up to 10,000 pieces, the estimated lead time is 20 days. For orders exceeding 10,000 pieces, lead times are negotiable based on current production schedules.

Q: Which industries typically use these pipe fittings?

They are widely used in the construction of piping for steam, gas, oil, and air, as well as in the manufacturing of railings, fencing, and customized industrial furniture.