top of page
Copper Trend

Copper Trend

LME Copper Cash - Settlement  V/S LME Copper Stock ( in USD ( $ ) per ton )

Weight Calculator

Weight Calculator

Alloy Specification

Alloy Specification - Brass Alloys

Brass Alloys


( Red Brass, 85% ) Commonly used for pipes and pipe nipples. Excellent cold working properties; common fabrication processes include forming and bending, threading and knurling. Red Brass is the best quality pipe for general plumbing purposes. It has high corrosion resistance to water. Furnished in semi-annealed condition


( Cartridge Brass, 70% )  Non-leaded brass is available in sheet, plate, and tube. This alloy offers the best combination of strength and ductility of all the copper-base alloys. Soft temper is widely used for severe cold working operations such as deep drawing and spinning. Half hard for stamping and light bending and forming, spring temper combines mild rigidity with good appearance. Typical uses include architectural, automotive, hardware, industrial, and munitions. Excellent cold working properties


( Yellow Brass ) Available in tubes. Excellent cold working properties



( Yellow Brass ) Available in tubes. Excellent cold working properties



( Low Leaded Brass ) Available in tubes. The addition of low amounts of lead allows for some degree of machinability, together with moderate cold working properties


( Low Leaded Brass ) Available in tube. The addition of low amounts of lead allows for some degree of machinability, together with moderate cold working properties

C35300 / C35600

( High Lead Brass ) Available in sheet and plate. Machinability ratings of 90 and 100, respectively. Common fabrication processes include blanking, machining, piercing and punching, and stamping


( Free Cutting Brass ) Available in rod and bar. With a machinability rating of 100, it is the standard against which all other copper alloys are rated. Ideally suited for high-speed machining; also has excellent thread rolling and knurling properties. Good mechanical and corrosion-resistant properties. This alloy is the most popular copper base rod alloy for general screw machine work


( Admiralty Brass ) Arsenical admiralty brass condenser tube is a standard condenser and heat exchanger tube, offering good corrosion resistance in fresh and salt water (at moderate velocities) and exceptional heat transfer characteristics

Alloy Specification - Bronze Alloys

Bronze Alloys


( Commercial Bronze ) This copper-zinc alloy has excellent cold working properties for spinning and drawing. It is stronger and harder than copper and has good resistance against stress corrosion or season cracking. It is excellent for outdoor services such as lighting fixtures, weather stripping, kick and push plates


( Architectural Bronze )  This alloy is similar to C360 (Free Cutting Brass) with the only significant difference being a slightly higher lead content in C360 for better machinability. The machinability rating for C385 is 90, compared to 100 for C360. While available in several product forms, we stock this alloy in angle only


( Naval Bronze ) The excellent strength and corrosion resistance of this alloy makes it a favourite for shafting. It has fair machining qualities but is readily hot-headed and hot forged. It is widely specified for tube sheets and support plates in heat exchangers and steam condensers


( Phosphor Bronze ) Phosphor Bronze is an alloy of copper and tin to which phosphorus is added to completely get rid of the alloy of oxides. When rolled 8# hard it is tough and strong and possesses great resistance to fatigue and corrosion. Diaphragms, switch parts and electrical contacts are some of its typical applications


( Aluminium Bronze Sheet / Plate )  This aluminium bronze has high strength and good properties at both high and sub-zero temperatures. it can be hardened by cold working and possesses high impact and fatigue strength. Its excellent corrosion-resistance makes it well suited for the process and marine industries. Its use as wear strips and plates reflects its inherent wear- resistance properties


(Aluminum Nickel Bronze) This is a nickel aluminum bronze and is widely used when even greater strength than aluminum bronze is required, such as for cam bearings, pump agitators, shafts and aircraft parts


( Aluminium Bronze Rod ) The addition of aluminium to copper generally improves the corrosion resistance. High strength, hardness, wear-resisting qualities, and good resistance to corrosion fatigue are attributes of this alloy


( Silicon Bronze )  This copper-silicon alloy is characterised by high strength and exceptional resistance to corrosion. It has the strength and toughness of mild steel, is excellent for both hot and cold working, and is readily welded. It is widely used for pole line and marine hardware, welded tanks, and unfired pressure vessels


( Manganese Bronze ) In tin bronze, manganese is added to serve as a deoxidizer. Its principal characteristics are high strength, toughness, and excellent resistance to corrosion. This alloy has important marine applications such as propellers, rudders, and non-magnetic mountings


( SAE 660 Bearing Bronze ) This alloy provides the bearing characteristics of balanced excellence. It is stocked in 105" random bars and can be cut to specific lengths as required. These machinable bronze bars are used chiefly for making maintenance bearings, parts, or repairs to machinery. Typical examples are bearings for cranes, fuel and water pump bushings, and machine tool bearings

SAE 841

( Solid Sintered Bearing Bronze Bars )  After forming, sintering, and sizing, the finished bearings are impregnated with SAE 30 high grade, non-detergent mineral oil conforming to MIL-L-151016A

Buyer's Guide

Buyer's Guide

What - Quantity

How - Review the annual requirements and recommend the supplier

Why - 
 Annual requirement allows the supplier to minimise the tooling setup cost and greater flexibility for                          opting the most economical manufacturing method 

What - Overs and Under-Runs

How - Ordering the exact quantity could result in an increased cost 

Why - Provision must be made for over-runs and under-runs, which could be factored into the quoted price

What - Delivery

How - Provide your supplier with a proximate forecast which allows sufficient lead time for systematic planning 

Why - 
A proximate forecast allows more cost-effective manufacturing runs. Express delivery                                                     necessitates the use of procuring materials and labour at a premium  

What - Packaging

How - At the time of requesting quotations, notify the supplier if any specific packaging, labelling, or                                     barcoding is required 

Why - Due to the cost of special materials and labour, customised packaging needs are costlier. A supplier                       may be able to provide an alternative or economical packaging if notified in advance 

What - Material

How - Opt for standard sizes of free-machining grades if the design and application permit 

Why -
Standard sizes are cost-effective and widely available. The use of free machining material ( Brass )                            results in higher production, a finer finish, and helps in achieving critical tolerances

What - Tolerances

How - Indicate critical tolerances that are absolutely required for functionality 

Why - 
Components with critical tolerances can be manufactured but may incur higher costs

What - Internal Diameters

How - The maximum permissible hole diameters should be indicated 

Why -
 Non-standard internal diameters can be manufactured with specialised tooling at an additional cost.                    Standard drills and reamers are readily available with precision machined product suppliers.

What - Threads

How - Indicate the use of standard threads from ISO Metric, BSP, BSW, BA, UNC, UNF, NPT, NPTF, etc

Why -
Special threads necessitate the use of specialised tools and gauges. Closer fit may necessitate                                 additional procedures. Full-length threads are more difficult to tap

What - Gauges and Gauging Equipment 

How - 
A designed part should avoid the use of special gauges wherever possible 

Why -
The cost of the part is increased by the use of specialised gauges and gauging tools. Customers can                     supply their own special gauges to have a cost-benefit 

What - Finish

How -  Indicate surface finishes that are necessary for the functionality 

Why - Finer surface finishes may necessitate specialised tooling, a longer cycle time or additional procedures,               as well as specialised handling and packaging methods

What - Quality

How - Indicate the quality parameters and highlight the attributes that are critical for the products'                                       performance 

Why - This will allow the supplier to focus on what is important and to follow parallel or compatible quality                           procedures

Company Archives
bottom of page