Erie Bronze has a reliable alternative to C922 and C932 Leaded Tin Bronze. While C903 Tin Bronze may not be the right solution for every job calling for C922 and C932, it offers many of the same qualities. In this article, you can get to know each of these alloys better. By doing so, you will be able to determine if it is worth pursuing C903 Tin Bronze as an unleaded casting alternative to C922 or C932 bronze. Throughout this article we will provide valuable information that can help you learn why we view C903 Tin Bronze as an Alternative to C922 and C932 in many scenarios.
Understanding the Benefits of Using Tin in a Bronze Alloy for Casting
While all bronze alloys produced by Erie Bronze are strong, there are some that stand out for superior strength. C903 Tin Bronze is an excellent example of this. By adding tin to a bronze alloy, hardness, strength, and ductility can be improved. Our C903 tin bronze castings can withstand substantial wear and corrosion resistance while also offering a high load-carrying capacity.
Our customers have relied on C903 Tin Bronze castings for seawater and brine exposed pump impellers, as well as a wide variety of gears, bushings, and bearings. Our Tin Bronze casting work has also been used to protect fittings that are regularly exposed to temperatures in the range of 550° F.
C903 Tin Bronze Differs from C922 and C932 Due to Its Absence of Lead
The primary difference between C903 Tin Bronze and the C922 and C932 Tin Bronze alloys is that it does not include lead. While these alloys are all bronze based and include tin for increased strength, C903 is a lead-free alloy. Depending on your intended use for a C903 Tin Bronze casting, the lack of lead may prove irrelevant and if it does Erie Bronze is here to provide you with the casting you need.
C922 and C932 Can Meet Specifications Including ASTM B763, ASTM B584, and SAE 660
If your project calls for leaded Tin Bronze, it may also be listed as ASTM B763 or ASTM B584. An additional spec that calls for C932 leaded tin bronze alloy is SAE 660 specification. Depending on your project’s spec sheet, you see any of these terms used for leaded tin bronze alloys.
We will view C903 Tin Bronze as an Alternative to C922 and C932 depending on your needs and the casting’s intended use. C903 is also known as modified Navy G Tin Bronze. Additional specs C903 can conform to include ASTM B763 and ASTM B763, SAE J461, SAE J462.
What Benefits do C922 and C932 Offer?
One of the primary benefits to having lead present in C922 Leaded Tin Bronze and C932 leaded tin bronze is its resistance to dezincification. Using lead in these alloys helps to prevent zinc loss and subsequent weakening of the overall material. Lead also provides significant friction resistance and adds to the machinability of C922 and C932 tin bronze. While these two alloys are useful, a C903 Tin Bronze casting from Erie Bronze can provide you with many of the same benefits these alloys provide. Additionally, lead free C903 Tin Bronze is also resistant to dezincification, albeit less so than alloys that include lead.
Think C903 Will Be a Safe Alternative to C932 or C922 on Your Current Project?
Now that you have a better understanding of why we view C903 Tin Bronze as an Alternative to C922 and C932 in many cases. If you think your current job could be served by a C903 casting, we want to hear from you. Our team can help you confirm that C903 will meet your project’s needs. If it does, we will be ready to quote your casting job and get to work providing the Tin Bronze casting you need for a fair price. We alloy C903 and our other metals on-site and have decades of collective experience producing quality castings for industries ranging from power generation, Defense, machinery manufacturing and more.