How to Achieve Accurate Quotation When Purchasing Stainless Steel Castings?

When purchasing stainless steel castings, many customers may directly ask: “what is the kg price of stainless steel castings?” Since stainless steel castings produced in CFS Foundry are all custom parts, it is difficult to answer directly. We have to master some basic information of the product such as stainless steel grade, product structure, weight, quantity, technical requirements and so on. Only after careful communication and analysis with our customers, can we make calculate the price accurately. Some prospective customers will be very sincere to communicate with us, because they also need to know some information, so it is generally easy to do.

How to Achieve Accurate Quotation When Purchasing Stainless Steel Castings

To be clear, purchasers need to understand the production process of cast stainless steel parts.

Mould: Normally stainless steel casting manufacturers quote mould cost separately, which is a one-time cost, and the mold belongs to the customer after payment. The moulds are generally made of aluminum. The small deformation coefficient of aluminum mould can guarantee the dimensional precision of products, the machining allowance can be less than that of wood mold, and the reuse performance is good. Mold cost is mainly affected by the structure complexity and sizes of stainless steel casting. Normally, the mold cost ranges from 2000USD to 3000USD.

Stainless Steel Casting: Simply to say, it is the process of molding and pouring into a mold to achieve casting blanks. The mold includes the product profile and the gating system.The gating system includes runner and riser.The gating system will be removed during the product cleaning process and is used for waste disposal. The weight of casting system is generally 70%-150% of the weight of the product blank. That is, the production of 100kgs of cast stainless steel parts needs to use 170kgs-250kgs of molten steel (cast steel burning temperature is high, large shrinkage. Shrinkage requirements are high). In addition to these additional costs, stainless steel castings will also produce waste for other reasons, such as shrinkage, porosity, etc. Generally, the rejection rate is controlled at about 7%, which is the direct cost factor in stainless steel casting production.

Machining: Part drawing is the most important information. Stainless steel casting blanks are machined according to the drawing. The drawing shall clearly indicate the part name, tolerance, surface roughness, key dimensions, machining standards, inspection requirements, heat treatment conditions, etc. According to the technical requirements, engineers can determine the machining method. Post machining of stainless steel castings also has cost loss such as: machined waste products and waste products due to the reason of casting defects exposed after machining.

In the process of purchasing and consulting stainless steel castings with stainless steel foundry, the purchaser shall state stainless steel grade, machining requirements, shape and size, weight, technical requirements and the quantity of castings ordered as accurately as possible. The normal quantity and annual demand for stainless steel castings per order should also be specified. It is better to send the drawings to the supplier, they will help you to determine the appropriate casting process and machining process according to the information provided

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