1.Product description: Products ANSI B16.5 GR5 Threaded Flange(Screwed Flange) with high quality Material Grade Gr5 Certification    DNV ISO9001:2008 Standard ASME B16.5/ANSI B16.5 Size 1/2"~ 64"NB, (DN15- DN3600) Pressure Clase JIS 5K 10K 16K 20K (DIN)   PN6,PN10,PN16,PN25 though PN64 150LB, 250LB ,300LB, 400 LB,500LB, 600 LB,900LB, 1500LB,2500LB Technique Forged Flange surface FF Application Chemical, Petroleum, Machinery, Industry, etc. Advantage    1. Long service life 2. corrosion -resistant 3.hign yeiled strenth and tensile strength. 2. Scope:StandardASME/ANSI B16.5,DIN2630~2633,BS etcNace NACE MR 01-75, MR 01 03MaterialGr1,Gr2,Gr5,Gr7,Gr9,Gr12SizeDN10 to DN1500Pressure rating0.6~32Mp(DIN)   PN6,PN10,PN16,PN25 though PN250(ASNI) CL150,CL300,CL600,CL900,CL1500Working temperature-60°C~250°CFlange surfaceFF,RF,TG,RJ etcQuality controlUltrasonic Testing