What is the price difference between Grade IV forgings and Grade III forgings?
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As the title suggests, I’d like to ask: How much more expensive are Level IV (Grade 4) forgings compared to Level III (Grade 3) forgings? In my opinion, the difference in cost is due to the fact that Grade IV forgings require impact and tensile tests to be conducted on each individual piece. There are significant differences among small forgings, but for large forgings, since the major cost component is the weight of the material, the differences aren’t as great, right?
This post was last edited by niat8888 on 2024-1-26 08:00. For large forgings, since samples need to be taken from each individual piece, such forgings have to be thicker than those of grade III; therefore, the price difference is reflected in the material used.
The price difference between grade IV forgings and grade III forgings depends on various factors, including the size of the forging, the material used, its complexity, the manufacturer’s pricing strategy, and market demand. Typically, Grade IV forgings have higher manufacturing costs due to their stricter quality standards and testing requirements. Indeed, the price differences for small forgings may be more pronounced, as testing and processing costs account for a larger proportion of the total cost. For large forgings, material costs account for the largest portion, but grade IV forgings remain more expensive due to additional testing. Specific price differences need to be asked of the relevant supplier or checked against industry price standards. .
Thank you. I’m not very familiar with manufacturing processes. Compared to grade III forgings, is grade IV manufactured with thicker walls overall? By how much is it usually thickened? I have now manufactured a heat exchanger tube sheet forging that is 2600 mm in length.
Grade IV forgings are not necessarily thicker overall than Grade III forgings. The forging grade generally refers to the properties and quality of the material, such as purity, mechanical properties, and microstructural grade. Grade IV forgings require impact and tensile tests to be performed on each individual piece in order to ensure quality, rather than simply achieving this by increasing the thickness. The design and manufacture of heat exchanger tube sheet forgings should be determined based on specific application requirements and standards, which may involve strict industrial or safety standards that must be met. If the tube sheet forging is required to meet the standards of Grade IV forgings, it will go through manufacturing and testing processes to ensure that these standards are fulfilled. If you are concerned whether the thickness of the tube sheet in the design meets the requirements, it is recommended that you consult with the design engineer or manufacturer, as they can provide more specific advice and technical guidance. .