Hydraulic rod material
Candidate grades: CK45 · 1045 · 42CrMo4 · 4140
Round and processed bars for piston, cylinder and guide rods.
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Candidate grades · Details and supply options
7 components
Shaft & pin material
Candidate grades: 40Cr · 42CrMo4 · 4140
Round bars and rough-machined stock for shafts, spindles and pins.
View detailsGrinding rods
Candidate grades: 65Mn
Heat-treated rods for rod mills.
Alternatives reviewed for mill duty.
View detailsFastener material
Candidate grades: 35CrMo · 42CrMo4 · 4140
Bar stock and semi-finished blanks for bolts, studs and threaded parts.
View detailsTension bar material
Candidate grades: 42CrMo4 · 4140 · 35CrMo
Alloy bars and semi-finished tie rods to drawing.
System design and installation excluded.
View detailsHeavy-duty materials
Candidate grades: 42CrMo4 · 4140 · 34CrNiMo6
Bars and semi-finished stock for shafts, flanges, pins and machinery parts.
View detailsFlat bars
Example grades: 40Cr (forks) · GCr15 (bearings)
Partner-factory flat bars for forks, springs and parts made to drawing.
Supplied-form illustration
View detailsCandidate grades require review against the controlling standard, delivery condition and order requirements.
Supply and inspection notes
Hydraulic rod material
- Candidate grades
- CK45 · 1045 · 42CrMo4 · 4140
- Supply-stage options
- Q&T; peeled or turned; ground; rough-machined or finishing-prepared.
- Confirm for your order
- Diameter tolerance + straightness
Surface stage + finishing allowance - Evidence
- MTC, traceability and dimensional checks, as agreed
Shaft & pin material
- Candidate grades
- 40Cr · 42CrMo4 · 4140
- Supply-stage options
- Hot rolled or forged; Q&T; peeled or turned; rough-machined.
- Confirm for your order
- Section size + machining allowance
Load, fatigue + toughness - Evidence
- UT scope, properties and traceability, as agreed
Grinding rods
- Candidate grades
- 42CrMoA, 40Cr, 65Mn and 50#; grade and delivery condition confirmed for mill duty
- Supply-stage options
- Q&T; straightened; cut to fixed length; inspected, marked and export packed.
- Confirm for your order
- Diameter, length + straightness
Mill duty + hardness requirements - Evidence
- Hardness, geometry and heat traceability, as agreed
Fastener material
- Candidate grades
- 35CrMo · 42CrMo4 · 4140
- Supply-stage options
- Q&T; peeled or prepared bar; thread-ready stock or semi-finished blanks.
- Confirm for your order
- Strength/hardness + supplied condition
Thread rolling or machining route - Evidence
- Properties, dimensions and traceability, as agreed
Tension bar material
System design and installation excluded.
- Candidate grades
- 42CrMo4 · 4140 · 35CrMo
- Supply-stage options
- Heat-treated or thread-ready; semi-finished; protective finish where agreed.
- Confirm for your order
- Tensile requirements + straightness
Thread and connection-end drawing - Evidence
- Tensile properties, thread dimensions and project inspection, as agreed
Heavy-duty materials
- Candidate grades
- 42CrMo4 · 4140 · 34CrNiMo6
- Supply-stage options
- Hot rolled or forged; Q&T; peeled or rough-machined; semi-finished to drawing.
- Confirm for your order
- Section size + load/toughness
Supply scope + acceptance plan - Evidence
- UT / third-party inspection as agreed
Flat bars
- Candidate grades
- Examples: 40Cr (forks) · GCr15 (bearings)
- Supply-stage options
- Delivery condition and processing confirmed in the quotation.
- Confirm for your order
- Width × thickness, length + tolerance
Part category + required condition - Evidence
- Material certificate and dimensional checks, as agreed
Choose a grade and supply stage
Component specification
Choose a grade and supply stage
Choose a component, grade, supply stage and application, then open the production worksheet with those selections.
Component selector 01—07
Component
Hydraulic Rods & Cylinder Components
Round bars and processed bars for piston rods, cylinder rods, guide rods and other linear-motion components.
Grade options
Main option
CK45 / 1045Medium-carbon option, subject to the drawing and specification.
Main option
42CrMo4 / 4140Alloy option for higher-strength component requirements.
Alternative
40CrAlternative alloy, subject to the part requirements and delivery condition.
Technical review
Project-specific gradeSpecify from the drawing, loads and finishing requirements.
Related Applications
Supply Stages
Processing
- Heat treatment
- Peeling or turning
- Centerless grinding
- Rough machining
Inspection
- MTC and heat traceability
- Straightness and diameter
- Surface condition
Component
Shaft Bars & Rotating Parts
Round bars for motor shafts, transmission shafts, gear shafts, pins, spindles and rotating mechanical parts.
Grade options
Main option
40CrCommon alloy option for shafts and pins.
Main option
42CrMo4 / 4140Alloy option for higher-strength requirements; confirm section size.
Alternative
34CrNiMo6Alternative for high loads and specified toughness.
Alternative
35CrMoAlternative alloy, subject to section size and service duty.
Technical review
Project-specific routeSpecify loads, section size and fatigue requirements.
Related Applications
Supply Stages
Processing
- Forging route review
- Heat treatment
- Peeling or turning
- Rough machining
- Grinding
Inspection
- UT
- Straightness and dimensions
- Mechanical properties
- Heat traceability
Component
Grinding Rods & Wear Applications
JOTAIN supplies heat-treated grinding rods for rod mills, with straightening, fixed-length cutting, inspection, marking and export packing.
Grade options
Main option
65MnPublished grade for JOTAIN grinding rods.
Alternative
40CrAlternative subject to mill duty and required performance.
Technical review
Defined Cr-Mo routeDefine chemistry, heat treatment and trial controls together.
Related Applications
Supply Stages
Processing
- Heat treatment
- Straightening
- Fixed-length cutting
- Marking and packing
Inspection
- Hardness response
- Straightness and length
- Surface condition
- Heat traceability
Component
Fastener Bars & Bolt Materials
Round bars and semi-finished materials for bolts, stud bolts, threaded rods and fastener blanks.
Grade options
Main option
35CrMoMain alloy option for fastener stock.
Main option
42CrMo4 / 4140Main alloy option for higher-strength fasteners.
Alternative
40CrAlternative alloy, subject to loads and thread requirements.
Technical review
Project-specific routeSpecify strength class, threading method and delivery condition.
Related Applications
Supply Stages
Processing
- Heat treatment
- Surface preparation
- Cutting and blank preparation
- Preparation for thread cutting or rolling
Inspection
- Mechanical testing
- Surface condition
- Dimensions
- Traceability and marking
Component
Tension Bars, Tie Rods & Threaded Components
Alloy steel bar and semi-finished rods to drawing for tie rods, tension-bar components and load-bearing threaded parts.
Grade options
Main option
42CrMo4 / 4140Main alloy option for tension-bar components made to drawing.
Main option
35CrMoMain option for threaded bars made to drawing.
Alternative
40CrAlternative subject to tensile loads and thread requirements.
Technical review
Project-specific routeSpecify the assembly, threads and connection ends.
Related Applications
Supply Stages
Processing
- Heat treatment
- Long-bar preparation
- Machined or rolled thread route
- Connection-end preparation
Inspection
- Tensile properties
- Long-bar straightness
- Thread dimensions
- Project inspection
Component
Wind, Marine & Heavy-Duty Components
Bars and semi-finished products for shafts, flanges, pins, fasteners, tie rods and machinery parts in heavy-duty service.
Grade options
Main option
42CrMo4 / 4140Main alloy option for components under high loads.
Main option
34CrNiMo6Main option for high loads and specified toughness.
Alternative
35CrMoAlternative subject to section size and service duty.
Alternative
40CrAlternative alloy, subject to the component specification.
Technical review
Project-specific routeSpecify the drawing, loads, section size and project inspection requirements.
Related Applications
Supply Stages
Processing
- Forging route review
- Heat treatment
- Peeling or rough machining
- Threaded preparation
Inspection
- UT or third-party inspection
- Mechanical properties
- Dimensions
- Traceability and project documents
Component
Flat Bars for Components
Flat steel bars for forks, springs, moulds, automotive frames, bearings and other components made to drawing.
Grade options
Main option
40CrPublished grade for fork flat bars; confirm the product category and order specification.
Technical review
Project-specific gradeSpecify the grade for the selected flat-bar category and drawing.
Related Applications
Supply Stages
Processing
- Grade and delivery condition
- Section size and tolerances
- Supply to drawing
Inspection
- Order-specific dimensional checks
- Material documents as agreed
Prepare a component enquiry
03 / Component RFQ
Get a component
quotation.
The quotation sets out the proposed material, processing and inspection.
Include with your enquiry
- Component + drawing revision
- Grade / standard + critical dimensions
- Quantity + destination
- Required supplied condition
- Work remaining after delivery
- Inspection + document requirements
Discuss your project
Send your requirements directly to JOTAIN. We will reply to your email.