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

Hydraulic Press Open Die Forgings 4000T Cement Machinery Gear Parts ​

Products:

cement machinery gear parts,construction gear parts,first grade big gear,second grade big gear.

Big gear ring of cement grinding mill to rotate cement grinding mill equipment by first grade big gear ring and second grade big gear ring’s coordinate.

Products reference:

Material	4340,20CrMnMo,34CrNiMo7-6,18CrNiMo7-6
Forging equipment	4000T open die hydorpress
Application	Cement construction machinery,mining metallurgical equipment
Melting process	EF+LF+VD
Production process	Forging+heat treatment,rough machining+QT+hobbing+gear grinding+finish machining
Forging ratio	≥5
Applicable standard	ASTM,ASME,DIN,JIS,ISO,BS,API,EN
Executive standard	JB/GB/EN/DIN/JIS/ASME/ASTM/ISO
Certification authority	ISO,BV,GSG, IST, UL,CTI
Delivery term	Rough machining(N+T);finish machining(Q+T),nitriding quenching
Test equipment	Spectrograph,UT device ,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,trilinear coordinate measuring machine,hardness test machine
Service	Our service included the forging, process, heat treatment, finish machining, package, local logistics, customers clearance and maritime transport. We took the customer’s requirements as the principal thing, and pay attention on the products quality.

Custom properties

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo	Others
20CrMnMo	0.17-0.23	0.17-0.37	0.90-1.20	0.035	0.035	1.10-1.40	0.30	0.20-0.30	0.17-0.23
34CrNiMo6	0.30-0.38	≤0.040	0.50-0.80	≤0.035	≤0.035	1.30-1.70	1.30-1.70	0.15-0.30
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
4340	0.38-0.43	0.15-0.35	0.60-0.80	≤0.035	≤0.040	0.70-0.90	1.65-2.00	0.20-0.30	-

Mechanical property	Dia.(mm)	TS/Rm(Mpa)	YS/Rp0.2(Mpa)	EL/A5(%)	RA/Z(%)	Type Of notch	Impact energy	HBW
20CrMnMo	Ø15	≥1180	≥885	≥10	≥45	V	≥55	≤217HBS
34CrNiMo6	Ø15	750-900	450-600	≥13	≥55	V	-40℃≥20	≤269HBS
18CrNiMo7-6	Ø15	≥980	≥785	≥9	≥40	V	≥47	≤269HBS
4340	Ø15	≥980	≥835	≥12	≥55	V	≥78	≤179HBS

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

Commerce clause

Max weight	30T
MOQ	1PC
Delivery time	30-50 days
Package