• Model NO.：Spectacle blind flange
• Manufacturing Way：Forging
• Kind：So,Wn,Lap Joint,Blind,Socket,Threaded Ect
• Sealing Face：RF,Rtj,FF Ect
• Material and Grade：ASTM a 515 Gr. 70
• Blind Flange Size：1,2 Inch -48 Inch
• Transport Package：Wooden Case
• Specification：ASME B16.48
• Trademark：DERBOSTEEL
• Origin：China
• HS Code：7307110000
• Production Capacity：100000 Ton,Month

Steel FlangesMaterialCarbon steel ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, 
S235JRG2, P245GH P250GH, P280GHM 16MN, 20MN ,20# Stainless steel ASTM A182, F304/304L, F316/316LAlloy steelASTM A182 A182 F12,F11,F22,F5,F9,F91etc.Standard                           ANSIClass 150 Flanges-Class 2500 FlangesDIN6Bar 10Bar 16Bar 25Bar 40BarJIS5K Flanges-20K FlangesUNI6Bar 10Bar 16Bar 25Bar 40BarEN6Bar 10Bar 16Bar 25Bar 40BarTYPE1.Welding neck Flange    2.Slip on3.Blind flange                   4.Long welding neck flange   5.Lap joint flange             6.Socket welding7.Threaded flange           8.Flat flangeSurfaceAnti-rust oil, clear lacquer, Black lacquer, Yellow lacquer,hot-dipped Galvanized,electrical galvanizedConnectionWelding, ThreadedTechnicalForged, CastingSizeDN10-DN3600Package1.>Standard export packaging (Plywood Case Of Outside,Plastic Cloth
 Of Inside). 
2:As Customers' Requirements                         Heat TreatmentNormalizing, Annealing, Quenching+TemperingCertificateTUV,ISO9001:2008;PED97/23/EC,ISO14001:2004,OHSAS18001:2007ApplicationsWater works, Shipbuilding industry, Petrochemical & Gas industry, Power
 industry, Valve industry
and general pipes connecting projects etc.2.Product Showcase

3.Production Facility

4.Qulality Control


5.Our Service



Chengdu Derbo Steel focus on pipe&tube solution for project application for more than 10 years with good quality and reasonable price,has succeed to cooperated with Sheel,Lukoil and other famous oil&gas companies all over the world.

If you have any inquiry for our products,please don't hesitation to contact us.We will provide you the most competitive quotation and technical support.