China AISI4340 Forged Steel Special Step Shaft

Name: sae4140/4340 steel forging special step shaft
Specifications
Option: C45, 39NiCrMo3, 40CrNiMoA, SAE 4320, 36Mn5
Surface: Machining
Forged shaft
OEM
FORGING THE FUTURE, WE DO THE BEST
OUR COMMITMENT: COMPETITIVE PRICE, HIGH QUALITY AND GOOD SEVICE
High quality rotary forged CRANKshaft:
Specification:
1: Processing high quality gear
2: Materials: C45, 39NiCrMo3, 40CrNiMoA, SAE 4320, 36Mn5
3: Measurement: Max outside dia: 3200, weight: 30 tons.
Detail description:
1: Name: Gear shaft
2: Proces: Heat forging
3: Certificates: ISO9001-2000, SGS
4: Products ability: Max length: 1--16m, Max OD: 3m
5: Surface: Polishing or per costomer's requirement
Products range:
Die Forging, Main Shaft, Wind Power Shaft, Stabilizer, Flange, Coupling, BOP Body, Tube Plate, Roller Forging, Roller Shell, Ring Forging, Gears, Gear Blank, Gear Shaft, Gear Wheel.
Packaging & Delivery

Packaging Details:wooden or steel package seaworthy packingDelivery Detail:about 35 days from order or as per customer requirement

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