Duplex Forged Steel ASTM A182 F51 Blind Flanges

Description

forged blind Flanges

Certification

BV,ABS

ISO9001:2008

CE

Certificate 3.1

Material

DIN,

ASME,

AISI,

ASTM,

EN,
BS,

JIS,

GB,

etc

Carbon steels:

A105, A266 Cl1 to Cl4 A372 Gr.A / Gr.B
A350 LF2,LF3
A516 Gr.60 and Gr.70
A738C / S355J2 / 1.0577

Alloy steels

42CrMo4 (Q+T) / AISI 4140 / DIN EN 1.7225
25CrMo4 /AISI 4130 / DIN EN 1.7213
34CrNiMo6 /AISI 4340/ DIN EN 1.6582
AISI 8660 Tripel Alloy Steel

stainless steels

A182 F304 / 304L (UNS S30403), F310 (UNS S31000)
A182 F316/316L (UNS S31603), F316Ti, F317/317L (UNS S31703)
A182 F321 (UNS S32100), F347 (UNS S34700)
A182 F44 (254SMO), 904L (UNS N08904)

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