Bronze Round Bar 655 Unpolished Mill Finish 0.25″ x 24″ OnlineMetals

Description

Product Overview

The 655 Bronze Round Bar is a precision‑engineered component designed for demanding industrial and marine applications. Crafted from silicon bronze, this alloy combines high tensile strength with exceptional corrosion resistance, making it a reliable choice for environments where exposure to saltwater and harsh chemicals is routine. The bar measures 0.25 inches in diameter and 24 inches in length, providing a versatile size that fits a wide range of mechanical designs, from small fasteners to larger shaft assemblies.

Finishing in an unpolished mill condition, the surface retains the natural texture of the bronze, which can be advantageous for certain bonding processes and for applications where a matte appearance is preferred. The H04 temper designation indicates that the material has been work‑hardened to a moderate degree, delivering a balance between ductility and strength. Compliance with ASTM‑B98 ensures that the bar meets rigorous standards for chemical composition, mechanical properties, and dimensional tolerances, giving engineers confidence in its performance.

Usage

Designed with marine hardware in mind, the 655 Bronze Round Bar excels in the fabrication of propeller shafts, pump impellers, and valve components that must withstand continuous exposure to seawater. Its corrosion‑resistant properties also make it suitable for offshore rig equipment, boat fittings, and dock hardware. Beyond marine contexts, the bar is frequently employed in the manufacturing of high‑strength fasteners, bushings, and bearing sleeves for industrial machinery where wear resistance and fatigue strength are critical.

Installation is straightforward thanks to the bar’s uniform dimensions and consistent material properties. Whether the bar is being machined into custom shapes, welded into assemblies, or used as a raw stock for forging, the predictable behavior of the 655 alloy reduces the need for extensive post‑processing adjustments. Technicians and fabricators appreciate the bar’s ability to be bent, formed, and machined without cracking, allowing for on‑site modifications and rapid prototyping.

Why Choose Us

OnlineMetals has built a reputation for delivering high‑quality metal products with reliable supply chain logistics. Each 655 Bronze Round Bar undergoes a stringent quality assurance process that includes chemical analysis, tensile testing, and dimensional inspection to verify compliance with ASTM‑B98. Our commitment to consistency means that every bar you receive matches the specifications listed, eliminating the variability that can cause costly rework.

In addition to product quality, we provide responsive customer support that assists with technical inquiries, material selection guidance, and order tracking. Our knowledgeable staff can help you determine the optimal alloy grade for your specific application, recommend machining parameters, and advise on heat‑treatment options if further customization is required. With fast shipping and flexible order quantities, OnlineMetals ensures that you have the right material on hand when you need it.

Environmental responsibility is also a core value. The 655 bronze alloy is recyclable, and we work with certified recycling partners to minimize waste and reduce the carbon footprint associated with metal manufacturing. By choosing OnlineMetals, you benefit from a product that not only meets performance standards but also aligns with sustainable practices.

Key Features

• High corrosion resistance for marine and offshore applications
• Consistent 0.25″ diameter and 24″ length for easy integration
• Unpolished mill finish provides natural grip and aesthetic flexibility
• Meets ASTM‑B98 standards, guaranteeing material purity and performance
• Dedicated customer support and fast delivery from OnlineMetals

FAQ

What does the H04 temper mean for this bronze bar?

H04 indicates a moderate work‑hardening level that improves strength while retaining enough ductility for machining and forming. This temper is ideal for components that need to resist fatigue but also require some flexibility during installation.

Can the bar be heat‑treated for additional hardness?

Yes, the 655 bronze alloy can be heat‑treated. However, any heat‑treatment process should be performed by a qualified metallurgist to ensure that the final properties meet your design requirements and that the ASTM‑B98 compliance is maintained.

Is the unpolished mill finish suitable for welding?

The mill finish does not impede welding; in fact, the surface texture can improve weld adhesion by providing a clean, oxide‑free area. Proper cleaning and preparation before welding are still recommended to achieve optimal joint quality.

What are the typical applications for this bronze round bar?

Typical uses include marine hardware such as propeller shafts and pump components, industrial fasteners, bushings, bearing sleeves, and custom‑fabricated parts that require a combination of strength, corrosion resistance, and machinability.

How do I verify that the bar meets ASTM‑B98 specifications?

OnlineMetals provides a material test report (MTR) with each shipment, detailing the chemical composition, tensile strength, and dimensional measurements. This documentation confirms compliance with ASTM‑B98 and can be used for quality control and certification purposes.