Delivery Time:30-50 days
Certification:ASTM，ASME，DIN，JIS，ISO，BS，API，EN

50Mn 4140 18CrNiMo7-6 Forged Steel Flanges Customized Flange Forging

Simple Description:

Various forging flange of alloy steel,carbon steel,stainless steel,flange forging is widely used for wind power generator,slewing bearing equipment,engineering machinery,pressure vessel,gear transmission etc,it has very good mechanical property and weldability.Flange is connection parts between two axle,used for pipe end connection.the materials of flange as following.
 
Commerce clause

Max weight	30T
MOQ	1PC
Delivery time	15-50Days
Package	Plywood case,wood pallet,steel frame
Delivery terms	FOB;CIF;CFR；DDU；
Payment terms	T/T,LC
Type of shipping	By ocean,air

 
Process procedure:
Forging process flow quality control: Raw material steel ingot into warehouse(test the chemical content) → Cutting→ Heating(Furnace temperture test) → Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal diamention, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment
 
Products reference:

Types	Q345D,50Mn,4140,18CrNiMo7-6,16Mn,class1
Max dia	9000MM
Application	Forging flange is the connection parts between two shaft,used for pipe end connection,can be welded.
Melting process	EF+LF+VD
Production process	Forging+heat treatment+rough machining
Forging ratio	≥5
Applicable standard	ASTM,ASME,DIN,JIS,ISO,BS,API,EN ,DIN
Executive standard	JB/GB/EN/DIN/JIS/ASME/ASTM/ISO
Certification authority	ISO,BV,GSG, IST, UL,CTI
Delivery terms	Rough machine(N+T)；finish machining(Q+T)
Test machine	Sepctrograph,UT device,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,hardness test machine

 

 
Custom properties

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo	Cu
4140	0.38-0.43	0.15-0.35	0.60-0.90	≤0.035	≤0.040	0.80-1.10	--	0.15-0.25	-
Q345D	0.13-0.20	0.17-0.37	1.20-1.60	≤0.030	≤0.030	≤0.30	≤0.30	--
18CrNiMo7-6	0.15-0.21	0.17-0.35	0.50-0.90	≤0.025	≤0.025	1.50-1.80	1.40-1.70	0.25-0.35
50Mn	0.48-0.56	0.17-0.37	0.70-1.00	0.035	0.035	0.25	0.30	--	0.48-0.56

Mechanical property	Dia.(mm)	TS/Rm(Mpa)	YS/Rp0.2(Mpa)	EL/A5(%)	RA/Z(%)	Type Of notch	Impact energy	HBW
4140	Ø10	740~1000	450~850	≥12	≥25	V	≥40	≤250HBS
Q345D	Ø10	470-630	≥345	≥21	--	V	-20℃≥27	＝＝
18CrNiMo7-6	Ø15	≥980	≥785	≥9	≥40	V	≥47	≤269HBS
50Mn	Ø25	≥645	≥390	≥13	≥40