Bronze Round Bar 655 OnlineMetals Unpolished H04 0.3125″ x 12″

Description

Product Overview

The OnlineMetals 655 bronze round bar is a precision‑engineered component designed for demanding industrial applications. Crafted from silicon bronze, also known as 655 bronze, this bar offers a unique combination of strength, ductility, and superior corrosion resistance, making it a preferred choice for marine and aerospace environments. With a diameter of 0.3125 inches and a length of 12 inches, the bar provides a versatile size that fits a wide range of fasteners, bushings, shafts, and custom hardware. The mill finish is unpolished, preserving the natural texture of the alloy and allowing for easy machining or further surface treatments. Tempered to H04, the material retains its workability while delivering consistent mechanical performance throughout its service life.

Each bar meets the stringent ASTM‑B98 standard, ensuring that the chemical composition and mechanical properties align with industry expectations for bronze alloys. The weight of a single bar is 4.64 ounces, making it lightweight yet robust enough to handle substantial loads. Manufactured by OnlineMetals, a trusted supplier in the raw materials sector, the product has earned a top ranking in the Bronze Bars category, reflecting its popularity among professionals who demand reliability and precision.

Usage

Designed for marine hardware, this bronze round bar excels in environments where exposure to saltwater and corrosive elements is inevitable. Its inherent resistance to corrosion protects components such as propeller shafts, marine fasteners, and valve stems from degradation, extending the lifespan of critical equipment. In addition to marine applications, the bar is well‑suited for aerospace fasteners, automotive bushings, and industrial machinery where high fatigue resistance and dimensional stability are required.

Engineers and fabricators often select this bar for custom machining projects, including CNC turning, drilling, and tapping. The unpolished mill finish provides a clean surface that readily accepts lubricants, coatings, or anodizing processes, allowing users to tailor the final appearance and performance to specific project needs. Its H04 temper ensures that the material can be easily formed without cracking, making it ideal for prototyping and low‑volume production runs.

Whether you are building a marine pump, assembling a high‑precision gearbox, or creating a bespoke mechanical component, the 655 bronze round bar delivers the reliability and adaptability required for success.

Why Choose Us

OnlineMetals stands out for its commitment to quality control, traceability, and customer satisfaction. Every batch of 655 bronze round bar undergoes rigorous testing to verify compliance with ASTM‑B98 specifications, guaranteeing consistent alloy composition and mechanical properties. Our state‑of‑the‑art manufacturing facilities employ advanced melting and casting techniques that minimize impurities and ensure uniform grain structure throughout the bar.

We provide detailed certification documents with each order, giving you confidence in the material’s provenance and performance. Our responsive support team is available to answer technical questions, assist with material selection, and provide guidance on machining best practices. With fast shipping and competitive pricing, we aim to be the preferred source for engineers, hobbyists, and large‑scale manufacturers alike.

Key Features

• High corrosion resistance ensures long‑term durability in marine and industrial settings
• Excellent strength and fatigue performance for demanding load applications
• Unpolished mill finish allows easy machining, coating, or further finishing
• H04 temper provides superior workability without sacrificing structural integrity
• Responsive customer support and detailed material certifications for peace of mind

FAQ

What does the H04 temper designation mean?

H04 indicates that the bronze has been annealed to a soft condition, offering high ductility and ease of machining while maintaining adequate strength for most applications.

Is the unpolished mill finish suitable for direct installation?

Yes, the mill finish is clean and free of contaminants, making it ready for immediate use or further surface treatment such as plating or coating.

Can this bar be welded or brazed?

655 bronze is compatible with standard bronze welding and brazing techniques. Proper filler material and heat control are recommended to preserve mechanical properties.

What are the typical applications for 655 bronze?

Common uses include marine hardware, fasteners, bushings, shafts, valve components, and aerospace fittings where corrosion resistance and strength are critical.

How does this product meet ASTM‑B98 standards?

Each bar is produced from alloy batches that are chemically analyzed and mechanically tested to ensure they fall within the composition ranges and property limits defined by ASTM‑B98.

What is the weight of a single bar?

The bar weighs approximately 4.64 ounces, providing a lightweight yet sturdy option for precision components.

Do you offer bulk pricing for larger orders?

Yes, we provide tiered pricing discounts for bulk purchases. Contact our sales team for a customized quote based on your quantity requirements.

Is there a warranty on this product?

All OnlineMetals products come with a limited warranty covering material defects. Specific warranty terms are outlined in the accompanying documentation.

How can I ensure the bar meets my project specifications?

We supply full certification reports with each shipment, detailing chemical composition, mechanical properties, and compliance with ASTM‑B98, allowing you to verify suitability for your design criteria.