100,000 t per year
Q&T capacity
Combined long-bar quenching and tempering capacity.
Manufactured. Processed. Delivered.
Alloy steel round bar manufacturer with JOTAIN-OWNED heat-treatment and bar-processing lines.
Up to 16 m
Long-bar capability
Heat-treatment routes for extended bar lengths.
8 heat-treatment lines
Heat-treatment network
Across owned and coordinated long-bar processing routes.
2 upstream JV mills
Priority mill access
Controlled, order-specific steelmaking and rolling routes.
Since 1999
Explore our factoriesIndustrial supply
Industrial steel since 1999; years of export packing and ocean-shipment coordination.
Order-specific processing capabilities
- Q&T
- Peeling / turning
- Centerless grinding
- Straightening
- Sawing
- Chamfering
- Bar preparation
We Make
Steel.
Two manufacturing bases. Steelmaking, rolling, heat treatment and precision processing—one JOTAIN team.
Explore our factories
Quality control & traceabilityWe Prove
We Prove
Our Steel.
Chemistry, mechanical testing, hardness, NDT and full heat traceability—checked before release.
Explore quality controlChoose a route.
Start with the operating environment, the part, or the steel grade already on your drawing.
Production record
Daily production.
Dated videos from JOTAIN-owned lines. Refreshed daily.
Latest uploadFeed checked
LatestPublished
40CrNiMoA & 45 For Shafts And GearsYouTube Short
Published
Tell us the steel production process you would like to seeYouTube Short
Published
45 Steel Bar Heat TreatmentΦ125×6520 mm
Published
45 Steel Bar Heat TreatmentΦ100×6030 & Φ73×6170
Published
Round barOur Factory Today
Published
42CrMoA & 45 Round BarQT Heat Treatment in Progress
Published
QT Heat Treatment in Progress40Cr & 45 Round Steel Bars