About Us
Premium steel sourcing and managed processing capacity for global industrial supply.
Founded in 1999 and headquartered in Hangzhou, China, Hangzhou Jiutian Materials Co., Ltd. operates globally under the JOTAIN brand, supporting industrial customers with alloy steel products, heat-treated bars, semi-finished products, and mature application-oriented supply for demanding engineering and mechanical uses.
Quote Preparation
Send a steel bar requirement for review.
Share the practical details first so material, delivery condition, processing route, inspection needs, and destination can be reviewed together.
- Grade or equivalent standard
- Diameter, length, and quantity
- Delivery condition and surface condition
- Application, inspection requirements, and destination
Buyer Details
Key supply details before quotation.
Review the main grade, application, processing, and inspection points first. Open the detailed notes only when deeper context is useful.
Company focus
Alloy steel and processed steel supply for global industry
Core grades include 42CrMo4, 40Cr, CK45 / 1045, 34CrNiMo6, 35CrMo, and 65Mn, with routes from raw bar to heat-treated and semi-finished supply.
Founded
1999 in Hangzhou, China
Annual Capacity
Approx. 90,000 tons
Processing Footprint
Huangshi, Jiyuan, and Huai'an
Company Intro
Jointly invested processing capacity backed by leading special steel mills.
JOTAIN Material Co., Ltd. focuses on domestic and international steel supply while supporting customers with technical coordination, heat treatment, downstream processing, and export execution.
Mill access and sourcing control
Our footprint in Huangshi, Jiyuan, and Huai'an keeps us close to Daye Special Steel, Jiyuan Iron & Steel, and Huai Steel for premium special steel sourcing.
Managed joint-venture facilities
These jointly invested processing facilities operate under JOTAIN management, giving us stronger control over heat treatment, machining preparation, and delivery execution.
From raw bars to semi-finished supply
Depending on the application, we can supply raw round bars, heat-treated bars, semi-finished processed products, and application-oriented components.
Detailed source notes 30 more points
Global export execution
We support industrial customers across Europe, North America, and Asia with packing, inspection coordination, documentation, and shipment planning.
Capability focus
Heat treatment, machining preparation, and process control in one supply route
Integrated Capability
Practical processing support that reduces sourcing and machining risk.
Current annual production capacity is approximately 90,000 tons. Our integrated capability covers heat treatment, peeling, bright processing, centerless turning, straightening, polishing, grinding, ultrasonic testing, thread rolling, and surface treatment.
2019 Jiyuan joint venture
Three PLC online heat treatment lines, centerless turning, straightening, polishing, centerless grinding, and threading capacity came online under JOTAIN management.
2020 Huai Steel joint venture
A second jointly operated facility added three PLC online heat treatment lines together with peeling capacity for larger-scale downstream processing support.
Multi-standard supply
Products can be supplied to GB, ASTM, DIN, EN, and JIS standards according to customer requirements and project needs.
Broad product scope
Our supply scope covers round bars, sections, plates, and pipes across low alloy, alloy structural, tool, special property, and special purpose steels.
Why Choose Us
Why industrial buyers choose JOTAIN for repeat projects.
Premium mill access
Long-term cooperation with leading special steel mills and proximity to core production regions support stable sourcing.
Managed processing capacity
Facilities operated under JOTAIN management give us stronger control over heat treatment, processing, and delivery.
Flexible supply scope
Supply can move from raw bars and heat-treated bars to semi-finished products and application-oriented components.
Integrated processing capability
Heat treatment, peeling, bright processing, grinding, thread rolling, ultrasonic testing, and surface treatment can be matched to application needs.
Export-ready execution
Documentation, packing, shipment coordination, and communication are aligned with international industrial orders.
Inquiry
Need an alloy steel supplier that can coordinate sourcing, processing, and export delivery?
Tell us your grade, size, delivery condition, and project target. We will match the supply route and processing support to your application.