GB/T 42124.3-2025 has replaced GB/T 6414-2017. This article compiles the tolerance tables for DCTG4-DCTG10, recommended grades for investment casting, GCTG geometric tolerances, and RMAG E machining allowances based on the official standard text.

How to perform CNC machining on the shaft hole, end face, and keyway after precision casting of a water pump impeller? This article explains the flow channel forming, machining datum, coaxiality, runout, dynamic balancing, and inspection requirements to help purchasing personnel prepare effective quotation materials.

This document compiles a global list of commonly used heat-resistant steel casting grades, covering HK40, HP40, ASTM A297, ISO 11973, EN material numbers, JIS SCH series, and GB/T 8492, and provides reference alternative grades and disclaimers.

There is no fixed minimum wall thickness for precision casting that applies to all parts. This article explains how material, flow length, part size, and structure affect wall thickness, and outlines design considerations for fillets, slots, bosses, ribs, and thickness transitions.

Precision casting of stainless steel valve bodies requires simultaneous consideration of the medium and pressure, flow channel structure, wall thickness transition, CNC machining of the sealing surface, and pressure testing. This article explains the key points of valve body manufacturing from drawing review to finished product inspection.

Why do stainless steel casting prices vary so much? This article breaks down nine price factors, including material, structure, unit weight, quantity, mold, CNC machining, inspection, and delivery time, and provides a list of casting inquiry materials that can be used directly.

Machining allowances in precision casting are not fixed values. This article explains how to determine the machining surfaces and allowances for stainless steel castings from blank to CNC finished product, starting from machining datum, casting structure, dimensional tolerances, deformation risks, and clamping methods.

This document provides a comparison table of common stainless steel casting grades, including the correspondences of materials such as 304, 316, 304L, 316L, CF8, CF8M, CF3, CF3M, 1.4308, 1.4408, SCS13, SCS14A, 2205, and 2507 in ASTM, AISI, EN, DIN, JIS, and Chinese GB standards.

CF8, CF8M, CF3, and CF3M are common casting grades in stainless steel castings, corresponding to 304, 316, 304L, and 316L stainless steel, respectively. This article compiles a comparison table of stainless steel casting grades and explains the performance differences and application scenarios of different materials.