Categoria: Blog

GB/T 1954-2008 — Methods of Measurement for Ferrite Content in Austenitic Cr-Ni Stainless Steel Weld Metals Standard Number: GB/T 1954-2008 Replaces: GB/T 1954-1980 Published: 2008-06-26  |  Effective: 2009-01-01 Modified adoption of: ISO 8249:2000 (MOD) ICS: 25.160.20  |  Classification: J33 Issuing Body: Standardization Administration of the People’s Republic of China 📄 Original Standard PDF (Chinese) Download […]

This standard specifies the evaluation method for macrostructure defects in the full cross-section of rolled steel integral wheels for railway use. 1. Scope This standard applies to the evaluation of macrostructure defects in rolled steel integral wheels used in railway applications. 2. Reference Standards This standard references relevant Chinese railway industry standards for wheel manufacturing […]

This standard specifies the sulfur print inspection method for steel, which is used to determine the distribution and degree of sulfur segregation in steel. 1. Scope This standard specifies the sulfur print inspection method for steel. This method is applicable to the inspection of sulfur segregation in various steel products. 2. Specimen Preparation The specimen […]

GB/T 226-2015 Test Method for Macrostructure and Defect of Steel by Etching Standard Information Standard Number: GB/T 226-2015 Replaces: GB/T 226-1991 Release Date: September 11, 2015 Implementation Date: June 1, 2016 Proposed by: China Iron and Steel Association Managed by: National Steel Standardization Technical Committee (SAC/TC 183) Scope This standard specifies three test methods for […]

Blind Flange with Rubber Gasket Wholesale Guide Blind flanges with rubber gaskets are essential components for pipeline isolation, pressure testing, and system maintenance. Understanding wholesale pricing, gasket selection, and availability ensures cost-effective procurement. Blind Flange Overview Blind flanges are solid discs used to close off pipe ends, valves, or pressure vessels: Key Features Solid construction […]

GB/T 226-91 — Steel Macrostructure and Defect Acid Etching Inspection Method 📥 Download Original PDF (Chinese Version) Original GB/T 226-91 Chinese Standard Document (embedded above) 1 Scope This standard specifies the acid etching method for examining the macrostructure and defects of steel. It is applicable to the inspection of macrostructure and common defects in various […]

GB 2971-82 – Method of Fracture Test for Carbon and Low Alloy Steels UDC: 669.14/.15 : 620.18 National Standard of the People’s Republic of China Promulgated: 1982-05-25 | Implemented: 1982-12-01 Scope This standard specifies the fracture test method applicable to carbon structural steels, low-alloy structural steel plates, bars, and sections. It may also be used […]

Introduzione alle flange industriali Le flange sono componenti essenziali dei sistemi di tubazioni e forniscono un metodo affidabile per collegare tubi, valvole, pompe e altre apparecchiature. Conoscere i diversi tipi di flange, le loro applicazioni e il loro corretto dimensionamento è fondamentale per garantire operazioni sicure ed efficienti in vari settori industriali. Cosa sono le flange cieche? Le flange cieche sono dischi solidi utilizzati [...]

Introduzione ai materiali e agli standard delle flange Le prestazioni e la durata delle connessioni flangiate dipendono in larga misura dalla scelta dei materiali e dal rispetto degli standard internazionali. Questa guida completa esplora i vari materiali utilizzati nella produzione di flange e confronta i principali standard internazionali che regolano la produzione di flange in tutto il mondo. Materiali comuni per le flange Acciaio al carbonio Le flange in acciaio al carbonio sono [...]

Le flange industriali nell'ingegneria moderna Le flange industriali costituiscono la spina dorsale di innumerevoli sistemi meccanici e di tubazioni in vari settori. Dalle flange per cuscinetti nelle apparecchiature rotanti ai collegamenti delle pompe e ai sistemi di scarico, la comprensione dei requisiti specifici di ciascuna applicazione è essenziale per ottenere prestazioni e sicurezza ottimali. Flange per cuscinetti: Supportare le apparecchiature rotanti Le flange per cuscinetti sono [...]

Understanding Toilet Flanges A toilet flange, also known as a closet flange, is a critical component that connects your toilet to the drain pipe and secures it to the floor. This essential fitting ensures a watertight seal and prevents sewer gases from entering your home. Whether you are dealing with a broken toilet flange or […]

Cast Iron Flange Installation Guide Cast iron flanges provide durable solutions for commercial and industrial piping installations. Cast Iron Closet Flange Features Durable construction for long service life Corrosion resistant epoxy coating Standard and custom sizes available Compatible with various pipe materials Mounting Flange Installation Prepare and clean mounting surface Mark bolt hole positions Drill […]