HEBEI HAIHAO HIGH PRESSURE FLANGE PIPE FITTING GROUP CO.,LTD |
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Description | forged blind Flanges | ||
Certification | BV,ABS | ||
ISO9001:2008 | |||
CE | |||
Certificate 3.1 | |||
Material | DIN, ASME, AISI, ASTM, EN, JIS, GB, etc | Carbon steels: | A105, A266 Cl1 to Cl4 A372 Gr.A / Gr.B |
Alloy steels | 42CrMo4 (Q+T) / AISI 4140 / DIN EN 1.7225 | ||
stainless steels | A182 F304 / 304L (UNS S30403), F310 (UNS S31000) | ||
Dimension | According to your drawings Max.OD: 6900mm(from 400mm to 6900mm, 20”-271“) Max.unit weight:30 tons | ||
Processing | Raw material inspection →stock cutting→ heat→forging→ Heat treatment (Normalizing+ tempering)→ Inspection→rough machining→UT→ 2nd Heat treatment → finishing machining→Inspection→packaging | ||
Equipment | 3600t, 2000t metal forging hydraulic press, 7m,3.5m rolling machines, different kind of vertical lathes 5m CNC drilling machine, various testing machines. | ||
production cycle | 15days or according to the quantity |
Export Work OEM Customized Steel Forged Blind Flange Din
Standard
1: OEM acceptable
2: ISO and BV verified