Alloy Steel Casting
Alloy Steel Casting is a preferred metal casting process for parts requiring enhanced mechanical properties. It has the similar casting process as carbon steel casting, due to the added elements like manganese, nickel, chromium, vanadium, and molybdenum, CFS Foundry can create alloy steel castings with higher strength, toughness, and corrosion resistance.
- Support Various Metal Casting Processes
- Can Cast Different Types of Alloy Steel
- Secondary Machining Operation Is Supported
What is Alloy Steel Casting?
Alloy steel casting is the steel casting process that is alloyed with numerous elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties. Alloy steels are broken down into two groups: low-alloy steels and high-alloy steels. Most commonly, alloy steels used in investment casting are low-alloy steels.
Strictly speaking, every steel is an alloy, but not all steels are called “alloy steels”. The simplest steels are iron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). However, the term “alloy steel” is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. Common alloyants include manganese (the most common one), nickel, chromium, molybdenum, vanadium, silicon, and boron. Less common alloyants include aluminum, cobalt, copper, cerium, niobium, titanium, tungsten, tin, zinc, lead, and zirconium.
Common Alloy Steel Alloys for Casting
| Grade | C (%) | Si (%) | Mn (%) | Cr (%) | Mo (%) | P ≤ (%) | S ≤ (%) | Ni (%) |
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.90-1.20 | 0.15-0.25 | – | – | – |
| 35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | 0.80-1.10 | 0.15-0.25 | – | – | – |
| 40CrNiMo | 0.37-0.44 | 0.17-0.37 | 0.50-0.80 | 0.60-0.90 | 0.15-0.25 | – | – | 1.25-1.65 |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | 0.80-1.10 | 0.15-0.25 | 0.035 | 0.04 | – |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.80-1.10 | 0.15-0.25 | 0.035 | 0.04 | – |
| 8630 | 0.28-0.33 | 0.15-0.35 | 0.70-0.90 | 0.40-0.60 | 0.15-0.25 | 0.035 | 0.04 | 0.40-0.70 |
Surface Finishing Options
Shot Blasted Finish
Shot blasting is the most common suface finishing method for alloy steel castings. It works by peening small steel balls onto the surface of each cast piece, and remove impurities and burrs to achieve a clean and smooth surface.
Machined Finish
Machined surface is required when some areas of alloy steel castings can not meet the drawing's dimensional tolerance or surface finish requirement. CFS Foundry has in hourse CNC machining capability to meet various machining operations.
Painted Finish
Painting is a cost effective surface finishing method for alloyn steel castings, which can prevent parts from rusting in the long term. A variety of colors are available by painting process.
Powder Coated Finish
Powder coating is a high-quality surface finishing way found on thousands of alloy steel castings. It provides a more durable finish than painting, but costs more
Zinc Plated Finish
Zinc plating is the process of covering cast steel parts with a layer or coating of zinc to protect the substrate from corrosion. Besides, it can also help to improve the strength for better working performance.
Black Oxidized Finish
Black oxide is a conversion coating used on alloy steel castings. It results in a black, smooth surface finish, and improves corrosion resistance and wear resistance.
Why CFS Foundry for Alloy Steel Casting?
Traditionally, alloy steel casting can get better properties than carbon steel castings. By comparision, alloy steel casting costs more for its higher material cost. Alloy steel casting is widely used for industrial applications, such as bucket teeth, agricultural wear parts, and many other industrial components utilize cast alloy steel parts in their operations.
Together with carbon steel casting and stainless steel casting, CFS foundry can make alloy steel castings as well. We can provide custom alloy steel investment castings that meet your unique specifications. We are exporting alloy steel castings to countries like America, Australia, Canada, South Africa, etc. Contact us immediately once you are soucing a reliable supplier in China for alloy steel investment castings. We are pleased to start our cooperation from a trial order with attractive prices.
Alloy Steel Casting FAQs
Besides bucket teeth & adapters, all the alloy steel castings are custom-produced from our client’s drawings or samples. By employing the precision investment casting method, alloy steel castings made from CFS Foundry can achieve complex geometries and tight tolerances. We can also provide redesign service for a new part to suit casting production.
CFS Foundry can cast alloy steel castings in different sizes and weights, no matter it is a small, intricate component or a larger, more complex part. Our flexible manufacturing process and advanced equipment allow for alloy steel castings with a minimum thickness of 3mm and weight ranging from a few kilograms up to 60 kilograms. This range ensures us produce alloy steel castings for various industries, including automotive, agricultural machinery, construction machinery, mining, and more.
CFS Foundry pays more attention to quality and lead times. In addition to advanced casting techniques, we employ strict quality control measures, including material certification, dimensional inspections, mechanical properties inspection and may even include non-destructive testing (NDT). Besides, we also passed ISO and TS 16949 certifications, ensuring that our quality castings meet and even exceed our client’s expectations.
Lead times vary based on casting complexity, volume, and finishing requirements. In general, CFS Foundry offers competitive turnaround times, often ranging from 4 to 6 weeks for a sample or low-volume orders. For more complex or custom-designed parts, the timeline may be longer. Throughout the process, CFS works closely with customers to provide accurate delivery schedules and timely updates, ensuring that projects are completed efficiently and on schedule.
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