Understand flange parts and flanges body part functions, including the flange face, hub, bore, bolt holes, bolt circle and gasket seating area for reliable piping connections.
Compare Class 300 and Class 600 flanges, including pressure rating, temperature derating factors, flange class selection, cost, dimensions, and industrial applications.
Learn whether RF and FF flanges can be mated, why face type mismatch affects gasket compression, and how to choose safer flange connections for industrial piping.
A practical ASME B16.5 guide covering the 2025 latest edition, NPS 1/2 through NPS 24 scope, flange classes, dimensions, materials, markings, testing and differences from ASME B16.42.
A professional weld neck flange guide covering socket weld vs weld neck flange differences, advantages, standards, dimensions, materials, installation and quotation requirements.
Casting vs forging explained for industrial flange buyers: compare grain flow, mechanical properties, defect risks, cost, standards, inspection and application suitability before specifying a flange.
Learn how to pronounce flange correctly, what flange and SO flange mean, how slip-on flanges work, and how to specify the right industrial pipe flange.
A practical guide to ANSI flange dimensions, ANSI flange sizes and flange ratings, including the real meaning of Class 150 and Class 600, standards, materials and selection.
A practical sourcing guide to the Top 5 Pipe Fittings and Flanges Manufacturers, including Songhai Flange, standards, materials, inspection, export support and buyer selection criteria.
GB/T 4334.1-2000: Method of 10% Oxalic Acid Etch Test for Stainless Steels National Standard of the People’s Republic of China ICS 77.040.99 Released: 2000-10-25 Implemented: 2001-09-01 Issued by: State Bureau of Quality and Technical Supervision 1. Scope This standard specifies the specimen, test solution, test equipment, test conditions and procedures, evaluation of test results, and […]
GB/T 6401-1986 利用图表确定铁素体-奥氏体双相不锈钢中 α 相面积分数的显微照片法 范围 本标准规定了确定铁素体-奥氏体双相不锈钢中 α 相面积分数的显微照片法。1.试样的制备 1.1 试样应在交货状态下取样。取样位置和[...]。
GB/T 13305-2008 - 确定不锈钢中 α 相面积含量的显微照片法 标准号：GB/T 13305-2008GB/T 13305-2008 标准号：GB/T 13305-200877.040.99 发布日期：2008 年 8 月 19 日2008 年 8 月 19 日生效颁布机构：中华人民共和国标准化管理委员会中华人民共和国国家标准化管理委员会 代替： GB/T 13305-1991 和 GB/T 13305-1992前言 本标准代替 GB/T 6401-1986 和 GB/T 13305-1991。本标准 [...]