JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity |
| Packaging Details | standard packing for export |
| Products Name | Alloy Steel Round Bar |
| Diameter | 10 - 300mm |
| Length | 6m |
| Tech | Hot rolled |
| Service | Cutting |
| MOQ | 1 Ton |
| Loading Port | Shanghai Port |
| Standard | ASTM EN GB |
| Brand Name | DELTA |
| Model Number | 31CrMoV9（1.8509）/ 38CrMoAlA |
| Certification | ISO |
| Place of Origin | China |
View Detail Information
Explore similar products
ASTM A29/A29m Hot Rolled Alloy Steel Round Bars SAE4340 10-350mm
DIN 1.8159 (25CrMoVr6-4) Alloy Steel Round Barr High-Temperature Strength &
25Cr2MoVA Alloy Steel Round Bar Diameter 10 - 300mm Custom Cutting in Length
EN DIN Standard 41CrAlMo7 Alloy Steel Round Bar Diameter 10 - 350mm SCM645 Alloy
Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity | Packaging Details | standard packing for export |
| Products Name | Alloy Steel Round Bar | Diameter | 10 - 300mm |
| Length | 6m | Tech | Hot rolled |
| Service | Cutting | MOQ | 1 Ton |
| Loading Port | Shanghai Port | Standard | ASTM EN GB |
| Brand Name | DELTA | Model Number | 31CrMoV9（1.8509）/ 38CrMoAlA |
| Certification | ISO | Place of Origin | China |
| High Light | 38CrMoAlA Steel Round Bar ，Industrial Alloy Steel Round Bar ，Chrome-Molybdenum-Aluminum Steel Round Bar | ||
38CrMoAlA Chrome-Molybdenum-Aluminum Alloy Steel Round Bar
Products Specification
| Products Name | 38CrMoAlA Nitriding Steel Round Bar |
| Diameter | 10 - 300 mm |
| Length | 6m or custom cutting any length as request |
| Type | Hot Rolled |
| Brand | BAOSTEEL DELTA DONGBEI HUAXI SHAGANG.etc |
| MOQ | 1 Ton |
| Loading Port | Shanghai Port |
| Packing | packing by steel wire rope |
| Deliver time | 5 - 7 days for stock materials |
| Other Grade | Q195,Q235,10#,20#,35#,45#,Q215,Q345,12Cr1Mov,15CrMo,304,3 16,20Cr,40Cr,20CrMo,35CrMo,42CrMo,40CrNiMo,GCr15,65Mn,50Mn, 50Cr,3Cr2W8V,20CrMnTi,5CrMnMo ,38CrMoAl, 31CrMoV9 |
| Standard | ASTM GB EN DIN |
| Application | Structure and Industrial |
✅ Advanced Nitriding Steel – Proprietary melting process enhances Al/N interaction for superior nitride formation
✅ Extended Service Life – 30-50% longer component lifespan versus standard nitriding steels
✅ Precision Engineered – Specialized manufacturing for high-stress, high-precision applications
| Element | C | Cr | Mo | Al | Micro-Alloys | Harmful Elements |
|---|---|---|---|---|---|---|
| Range | 0.36-0.39 | 1.45-1.60 | 0.18-0.23 | 1.15-1.25 | V≤0.03, Nb≤0.02 | [S+P]≤0.015 |
*Featuring our proprietary "Clean Steel" technology with ultra-low gas content (O≤15ppm, N≤60ppm)*
After Optimal Heat Treatment:
| Property | Typical Value | Industry Standard | Improvement |
|---|---|---|---|
| Rotating Bending Fatigue | 580 MPa | 450-500 MPa | +20-30% |
| Contact Fatigue Limit | 1600 MPa | 1200-1400 MPa | +25% |
| Fracture Toughness (KIC) | 95 MPa√m | 70-80 MPa√m | +30% |
Nitriding Performance:
Controlled White Layer: 15-20μm (vs typical 25-40μm)
Case Depth (500HV): 0.5-0.8mm on demand
Surface Hardness: 1000-1250HV (adjustable)
Digital Quenching System
Precision temperature control (±3°C)
Automated quenching rate adjustment
Deep Cryogenic Treatment
-196°C stabilization process
Reduces retained austenite to <3%
AI-Optimized Nitriding
Real-time layer growth monitoring
Predictive hardness profiling
Where Our 38CrMoAlA Excels:
Aerospace & Defense
Helicopter rotor shafts
Missile guidance components
Energy Sector
Nuclear reactor control rods
Hydrogen compressor valves
Advanced Manufacturing
6-axis robot harmonic drives
EUV lithography machine components
Blockchain-based material traceability
3D hardness mapping technology
In-situ microstructure monitoring
Digital twin for performance prediction
Just-in-time manufacturing with 72-hour rush service
Global technical support network
Application-specific alloy customization
Available Forms:
Precision ground bars (∅5-500mm)
Near-net-shape forgings
Custom machined blanks
Why This is Different:
Focuses on performance advantages rather than just specifications
Introduces proprietary manufacturing technologies
Highlights real-world improvements over standard grades
Emphasizes cutting-edge applications
Incorporates Industry 4.0 quality systems
Contact our Advanced Materials Team for technical consultation and sample requests.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
Get in touch with us
Leave a Message, we will call you back quickly!