Leaded Gunmetal LG2 Bronze

Key Features
  • Excellent machining properties
  • Medium Strength
  • Good Pressure Tightness
  • Not subject to Dezincification
  • Reasonable corrosion resistance to seawater
Make Enquiry
Key Features
  • Excellent machining properties
  • Medium Strength
  • Good Pressure Tightness
  • Not subject to Dezincification
  • Reasonable corrosion resistance to seawater

Overview

LG2 Bronze is one of the most used grades of bronze in industry. It has medium strength, excellent machining properties, and is suitable for bearings, gears and other components used in relatively light duty applications. Although LG2 is often referred to as phosphor bronze, it is in fact a leaded gunmetal. Only the “PB” group of bronzes (PB1, PB2 etc) can truly be called phosphor bronze.

All Milsons LG2 bronze is manufactured using finely controlled continuous or centrifugal casting techniques to ensure that hardness and strength is superior to sand-casting methods. This also means that the material has a fine grain structure and is free from porosity.

Material Profile

Metric Imperial
Profile Size Range Availability
Solid Round Solid Round 12" see full size range In Stock
Hollow Round Hollow Round 15" x 10" see full size range In Stock
Square Bar Square Bar 2" x 2" see full size range In Stock

Chemical Composition

ElementSymbolRange %Nominal %
TinSn4.0-6.04.4
LeadPb4.0-6.05.5
ZincZn4.0-6.05.5
NickelNi1.0 maximum
IronFe0.30 maximum
AluminiumAl0.005 maximum
AntimonySb0.25 maximum
CopperCuBalance

Physical Properties

MaterialUnitGunmetal LG2
Tensile Strength MinN/mm2248
Yield Strength MinN/mm2131
Elongation Min%15%
Hardness MinBHN60

Machining Allowances

All Kormax LG2 Bronze bar has machining allowances added to the sizes quoted. To use 4-1/2” x 2-1/2” hollow bar as an example, this material would measure approximately 4.570” OD x 2.440” ID as supplied (see table below). Therefore this allows finished components measuring 4-1/2” OD x 2-1/2” ID to be easily manufactured from 4-1/2” x 2-1/2” hollow bar.

Outside Diameter
Size Range
up to 3-3/4”
4” to 5”
5-1/4” to 6”
6-1/4” to 18”
Allowance
+0.040”
+0.070”
+0.094”
+0.109”
Inside Diameter
Size Range
up to 3-3/4”
4” to 5”
5-1/4” to 6”
6-1/4” to 18”
Allowance
-0.060”
-0.090”
-0.108”
-0.120”

Comparative Specifications

BS1400 – LG2; AS1565 83600; SAE 40; JIS (Japan) H5121 – CAC402C (BC6); DIN (Germany) 1705 – RG5; ISO 1338 – CuPb5Sn5Zn5; BS EN 1982 CuSn5Zn5Pb5

Knowledge Centre

Articles, case studies, webinars, videos, white papers, testimonials… everything you need to know about Kormax and more.

Bronze Alloy Selection

23 October
Webinar

Bronze Machining Techniques

23 October
Webinar

Bronze Bearing Fitment & Lubrication

23 October
Webinar

Metals Catalogue

pdf3.75 mb
X
Please enter your email to download
You can now download files form the website.
Enter your email once to access all downloadable material.
Download
WP to LinkedIn Auto Publish Powered By : XYZScripts.com