Comprehensive casting tolerance guide: ISO 8062 (GB/T6414) CT5-CT7 linear tolerances, VDG P690 investment casting specs (D1/D2/D3), angular tolerance (±0.5°~±1°), and straightness (0.127mm/25mm) for manufacturing quality control.
ISO8062 & VDG P690 Casting Dimensional Tolerance Standards Read More »
Abrasion Resistant White Iron Castings ASTM A532 / A532M Class Type Grade As-Cast or As-Cast + Stress Relieved (min) Hardened or Hardened + Stress Relieved Chilled As-Cast (min) Annealed (max) Typical Values HRC HV HB HRC HV HB HRC HV HB HRC HV HB HRC HV HB I A Ni-Cr-HiC 550 53 600 600 56
Abrasion Resistant White Iron Castings ASTM A532 / A532M Read More »
Dear all attention: All molds/moulds/toolings and drawings are the assets and property of our customers. We will not use the customer’s molds/moulds/toolings to produce any products for any party other than the mold owner, nor will we share the customer’s drawings and proprietary process information with any other irrelevant parties. Leesh Holdings Co., Ltd. 2026/1/13
CopyRight Declaration Read More »
As 2025 draws to a close, we want to take a moment to thank our outstanding team, trusted customers, and valued suppliers. It has been a growing year for Leesh Holdings, with growth across all areas of the business, and we are grateful to everyone who contributed to achieving these goals. As the holy season
Merry Christmas and a happy and prosperous 2026 Read More »
GOST 613-79: Tin Foundry Bronzes Standard GOST 613-79: Tin Foundry Bronzes. Grades Standard Information Standard Number: ГОСТ 613-79 Title: Tin Foundry Bronzes. Grades Replaced Standard: ГОСТ 613-65 Implementation Date: January 1, 1980 Classification Code: ОКП 17 3620 Approved by: Decree of the State Committee of the USSR for Standards dated April 26, 1979 No. 1555
GOST 613-79 Tin Bronze Tin Foundry Bronzes Read More »
ZG06Cr13Ni5Mo High Strength Martensitic Stainless Steel Castings International Equivalent Grades:Chinese Standard: ZG06Cr13Ni5Mo, 04Cr13Ni5Mo (New Grade), 0Cr13Ni5Mo (Old Grade), S41595 (Digital Grade)American Standard: ASTM S41500, UNS F6NMJapanese Standard: JIS SUS F6NM, JIS SCS6German Standard: DIN 1.4313European Standard: EN X3CrNiMo13-4 Abstract ZG06Cr13Ni5Mo is a super low carbon martensitic stainless steel casting material with excellent comprehensive properties. Through precise composition design and
ZG06Cr13Ni5Mo High Strength Martensitic Stainless Steel Read More »
Leesh is a key player in the Gravity Die Casting with specialized experience, enhanced with T6 heat treatment – Leesh casting all time Superior Performance.
Gravity Die Casting T6 Treatment – for Superior Performance Read More »
Leesh Holdings Co., Ltd. (Leesh), a leading engineering and manufacturing company based in Shenyang, China’s Heavy Industry Center, offers premium Induction Hardening services to global clients. As a multifaceted enterprise, Leesh specializes in various engineering and manufacturing solutions, with Induction Hardening being one of their core capabilities in the field of heat treatment. What is
Induction Hardening from Leesh Professional Services Read More »
Understanding the Difference Between Surface Roughness and Surface Finish In the field of mechanical engineering and manufacturing, understanding surface characteristics is crucial for ensuring product performance, functionality, and longevity. Two terms that are often used interchangeably but have distinct meanings are surface roughness and surface finish. Let’s explore the differences between these two important concepts. What
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ASTM A890/A890M Standard Specification for Corrosion-Resistant Iron-Chromium-Nickel-Molybdenum Duplex Stainless Steel (Austenitic/Ferritic) Steel Castings for General Applications Table 1. Heat Treatment Requirements Grade Heat Treatment 1A, 1B, 1C Heat to a minimum temperature of 1900°F (1040°C), hold for sufficient time to uniformly heat the casting to the specified temperature, quench in water, or otherwise rapidly
Duplex Stainless Steel Casting Material Read More »
