Name: Forging sae4140 steel ring for slewing bearing
Delivery Standards & sizes:OD from 180mm to 6000mm and more for carbon, alloy and stainless steelOD 180 to 3000mm for nickel alloys (alloy 400, monel, alloy 625) and 17-4PHFace height up to 1500mmAccording to ASTM/ASMEMain use:Pressure vessel and heat exchanger manufacturingSlewing ringsWind tower flanges Heat exchanger manufacturing Machine construction, forged sleevesOilfield equipmentValve manufacturingForged seamless rings up to 2000mm OD and 500mm face height can be manufactured contoured rolled /profiled to save material and machining costs.
Materials:
High yield steels, carbon steels, stainless steels, duplex steels, alloy steels, nickel alloy steels,
All seamless rolled rings can be supplied with weld overlay inclusive Titanium, accordingt o your specifications
The strict use of high quality raw material is guaranteed and proved by raw material certificate with each delivery.
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