1.Product description: Products ASTM B381 Gr1 customization titanium fored flange for Industrial equipment Material Grade Gr1 Certification    DNV ISO9001:2008 Standard ASTM B381 Size 1/2inches ~ 80inches(DN10 ~ 600) Pressure Clase PN0.25~32Mpa (DIN)   PN6,PN10,PN16,PN25 though PN250 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