
One-stop Tool Steel Manufacturing & Sourcing Hub
Aobo Steel (Huangshi Aobo Mould Material Co., Ltd.) is a China-based bulk tool steel manufacturer and exporter with over 20 years of forging background.
We operate from Huangshi, one of China’s core tool steel production regions. Our company integrates independent quality control capability with a stable network of more than 40 long-term manufacturing partners.
We position ourselves as a one-stop tool steel manufacturing and sourcing hub for overseas distributors and bulk importers.
20+ yrs
Forging & tool steel industry background
40+
Integrated supply chain partners
MOQ 5t
Wholesale-focused export model
~26t
20GP container optimization
Who We Are
We operate as a controlled supply hub, combining forging experience with an integrated supplier network to deliver stable tool steel for bulk buyers.
Our focus is simple: reduce supply risk through clear specifications, verified quality, and a delivery model designed for wholesale operations.
Industrial Background
Our foundation is in forging. This gives us practical control over internal quality—not just surface specifications.
We understand how forging ratios, segregation, and microstructure affect downstream performance, such as heat treatment and wear behavior.
- Better decisions on grade suitability and risk control for distributors
- Clear definition of tolerances and surface conditions before production
- Focus on metallurgical reliability, not marketing noise
Positioning
Aobo Steel is positioned as a one-stop hub for tool steel supply for bulk buyers, supporting long-term procurement by distributors and stockists.
- Typical customers: distributors, stockists, bulk importers
- Typical order: MOQ 5 tons; container-level purchasing preferred
- Primary products: cold work, hot work, HSS, plastic mold steels
Product Coverage & Familiar Grades
We cover common tool steel systems used by global distributors. For technical communication, we are especially familiar with the grades below.
Core Products
- D2 / 1.2379 / SKD11
- H13 / 1.2344 / SKD61
- D3 / 1.2080 / SKD1
- Cr12MoV
These grades require strict control of chemistry, carbide behavior, and ultrasonic integrity—key concerns for stockists and machining customers.
Supply Forms
- Forged round bars and plates (bulk supply model)
- Length: 2–5.5 m, optimized for 20GP internal length (5.8 m)
- Turned/peeled round bar tolerance: 0 / +1 mm
- Milled plate thickness tolerance: 0 / +1 mm
- Black surface materials: 0 / +5 mm
Quality Control Before Shipment
We focus on material reliability before delivery—ensuring chemistry, internal soundness, and documentation are correct before the material enters your production process.
Inspection & Documentation
- Chemical composition strictly follows specified standards (AISI / DIN / JIS / GB equivalent grades)
- Ultrasonic testing according to Sep 1921-82 D/d or E/e level as agreed
- Material Test Certificate (MTC) provided per order
- Surface condition and tolerance are clearly defined before production
We do not provide final heat treatment. Our responsibility is to deliver stable, verifiable raw material ready for your downstream processing.

Bulk Export Logistics
We structure our supply around container efficiency, cost control, and predictable delivery—so distributors can plan inventory and reduce logistics waste.

Export Model
- MOQ: 5 tons (wholesale supply focus)
- 20GP container optimization: ~26 tons (depending on sizes)
- Length control (2–5.5 m) supports loading efficiency
- Clear labeling and order-level documentation
Cooperation Model
We work with partners who require consistent bulk supply, stable quality, and long-term cooperation—primarily overseas distributors and stockists.
Who We Serve
- Overseas distributors
- Stockists/warehouses
- Bulk importers for industrial supply
What You Can Expect
- Direct communication with fast response
- Stable supply based on an integrated sourcing network
- Consistent specifications across batches
- Full order-level traceability (MTC provided per order)
Let’s build a predictable tool steel supply
If you are a distributor or stockist looking for bulk tool steel supply from China, we can support you with stable sourcing, clear specifications, and order-level documentation.
