Heat treatment
Quenching & tempering · Normalizing · Annealing
Heat treatment is arranged to achieve the material condition specified in the order and support subsequent manufacturing.
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Steel Bar Processing & Surface Treatment
Send processing requirementsFrom delivery condition through processing, inspection and shipment handover.
JOTAIN combines heat treatment, bar preparation and surface protection to meet each order’s technical requirements.
Processing capabilities
Select the operations your delivery requires. The agreed technical specification determines the final process sequence and test plan.
Surface & dimensional finishing
Peeling · Grinding · Polishing
Control surface condition, finished dimensions and the allowance for subsequent machining to the technical requirements.
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Straightening & end preparation
Straightening · Sawing · Chamfering · End preparation
Prepare bar straightness, length and end geometry for handling and subsequent machining.
Configure bar preparation
Threading & machining
Threading · Rough machining · Semi-finished part preparation
Machine connection features to the drawing so the supplied parts are ready for subsequent assembly.
Configure production operations
Inspection & release
Material testing · Dimensional inspection · Traceability records
Chemical, mechanical, hardness, metallographic, UT/NDT, dimensional and traceability checks form the release record.
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Packing & export handover
Protection · Bundling · Marking · Shipment handover
Coordinate documents, order preparation, customs and shipment handover to carry the order requirements through to export delivery.
Explore packing & exportSurface treatment at JOTAIN-owned downstream facilities
Coatings & surface protection
Five processes, matched to the order.
Coating and surface-protection operations are carried out at JOTAIN-owned downstream facilities. Surface preparation, final dimensions and inspection requirements are defined for each order.
Hot-dip galvanizing
Immersion in molten zinc provides a protective layer on steel parts.
Industrial painting
Specify the coating system and color to suit the requirements.
Chrome plating
A functional plated layer for rods and parts specified in the drawing.
Black oxide treatment
A black conversion coating applied to specified parts.
Electrophoretic coating
Electrodeposition coating applied to specified parts.
01
Surface preparation
Cleaning · Pretreatment · Masking
02
Treatment to specification
Process · Coating system · Thickness / color
03
Inspection before release
Appearance · Specified thickness · Final dimensions
Inspection · Records · Delivery
Carry technical requirements through to delivery.
Material condition, dimensions, inspection records and packing requirements define the delivery conditions. The process and test plan are agreed for each order, with records carried through to shipment handover.
View quality & documentsTechnical requirements
Grade, standard, dimensions, quantity, delivery condition and inspection requirements.
Inspection & records
Chemical, mechanical, hardness, metallographic, UT/NDT, dimensional and traceability checks.
Packing & shipment
Protection, bundling, marking, documents, order preparation, customs coordination and shipment handover.
Quotation support
Tell us your processing requirements.
Send material requirements and drawings so we can assess the processing route and prepare a quotation.
- Material & dimensions
- Grade standard, diameter, length, quantity and delivery condition.
- Drawings & surface requirements
- Part geometry, pretreatment, coating system, thickness / color, masking and final dimensions.
- Inspection & delivery
- Inspection requirements, certificate requirements, packing requirements and destination.