China Forged Shaft Stainless Steel Precision Shaft

Name: forged Sae4140 sae4130 steel shaft bar
Specifications
Produce according to the users' specification.
Lower price with high quality
The parts are customized according to your demand. The high quality, competitive price and good service are our targets.
We are speciale in produce according to our clients' specimen or prints. Please contact us freely as a good friend if you are interested in our products and service.
Below is our producing range, sincerely expect to cooperate with the world-range buyer.
Material
Cast iron, grey iron, ductile iron, steel, stainless steel, brass, copper, aluminum, zinc etc
Casting
Sand casting, precision casting, investment casting, lost wax casting, die casting, gravity casting
Machine
Lathe, CNC, drilling machine, milling machine, boring machine, planting machine, machining center etc
Surface treatment
Powder coating, painting, spraying, galvanization
Inspection equipment
Profile projector, Rockwell hardness tester, Vickers hardness tester roughness tester, air gage, concentricity tester, universal microscope, CMM, digital caliper and etc.
Production usage
All kinds of aluminum casting: Include automotive parts, railroad parts, medical parts, marine parts, lighting parts, pump body, valve parts, architectural parts and furniture parts so on
Remark
(1) Any RFQ, Please feel free to send your drawings(CAD. PDF)for quotation.
(2) All parts are not in stock, customized only!
The marine propeller shaft is an important part of the shafting system. We have the strict control form the preparing material to packaging to make sure the quality of the shaft.
Material List for the 35# forged steel stern shaft, propeller shaft, ship shaft:
Specifications for the stern shaft or propeller shaft:

ItemProcessFacilityInspection itemsStandard
01
Steel material
inspection Chemical composition
(EF+LF+VD)Material standard surfaceIngot inspection
specification Ingot type and weightMaterial standard02
Material
store Division putwarehouse management1
Heat Heat furnaceTemperature/TimeHeating process
specification
Forging production
procedure2
↓ForgingPressReduction ratio,forging
temperature,deformation,
Surface and dimensionsForging process card
Forging procedure3
↓Heat treatmentheat treatment
furnaceheat treatment charts1st heat-treatment card
Forging procedure4
↓Rough
inspection Dimensions, apperance,
MarkInspection specification
Forging procedure5
↓Rough UTUT equipmentSingle defect, concentrated
Defects bottom wave
attenuationUT standard or
customer's technical
requirements6
↓Saw cuttingSaw machineDimensionIQC and forging7
↓rough turningturning-latheDimension,appearance Rough machining
drawing8
↓UTUT equipmentSingle defect, concentrated
defects bottom wave attenuationUT standard or
customer's technical
requirements9
↓Q+T
heat treatmentheat treatment
furnaceheat treatment chartsHeating process
specification10
↓Sampling or machiningmachining toolrough machining drawing
sampling drawingsample machining
drawing11
↓mechanical
property test tensile testing machine/
impact testing machineambient temperature,humidity,
Test temp.Sample dimension,
test methodStandard
technical specification12
↓finish
machiningmachining
toolDimension,appearance finish machining drawing13
↓UTUT equipmentSingle defect, concentrated
Defects bottom wave
attenuationUT standard or
customer's technical
requirements14
↓MTMT equipmentMagnetic particle
indicationTest standard or
Technical requirements15
↓MarkSteel sealmarking contentProduct standard
Technical requirements
Forging process16
↓Final
inspection Appearance, dimension, mark
acceptance inspectionProduct inspection
specification
Product standard
P.O.17Protection/
packageBlasting
Blasting equipmentappearance
coating thicknessProduct standard
Technical requirements