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

Polishing Treatment Gear Blank Forging 50T Cast Furnance Cast Gear Ring​

Description:

Cast gear after large scale cast equipment,partial process,numerical control vertical lathe,gear shaping,heat treatment,merge and fix,gear grinding,partial body shipment to meet ransmission gear of large scale industrial equipment application,easy to big width fix and shipment.

Details:

Specification: 4340,34CrNiMo7-6,18CrNiMo7-6

Cast equipment: 50T cast furnance

Application: Precision cast gear ring of big scale equipment

Production process: Cast+heat treatment+rough machining+QT+hobbing+gear grinding+finish machining

Executive standard: JB/GB/EN/DIN/JIS/ASME/ASTM/ISO

Test equipment: Spectrograph,ut device,tensile and compact test machine,metalloscope,outside micrometer,bore dial indicator,trilinear coordinate measuring machine,hardness test machine

Custom properties

Material elements	C	Si	Mn	P	S	Cr	Ni	Mo	Others
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
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

Forging process:

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

Competitive Advantage:

High-precision dimensional tolerance; Excellent mechanical properties; Produce different dimension based on customer’s requirements; Advanced manufacture equipments and inspection devices; Excellent technical personality; Control the production procedure strictly; Pay attention on the package protection; Quality full service.