A105 A182 A350 Open die steel forging parts
10222 open die steel forgings feature uniform forged structure and excellent fatigue resistance, widely applied to critical load-bearing components in gear manufacturing, slewing bearings and wind power sectors.
- Standard: ASTM A105, ASTM A182, ASTM A350, EN 10222, GB/T 150
- Technique: Ring Rolling or Open Die Forging
- Shape: Ring / Seamless Rolled Ring
- Heat treatment: Normalizing / Annealing / Quenching + Tempering
- Surface Treatment: Rough Turned + Anti-rust Oil
- Tolerance: Rough Turning: ±1.0 mm to ±2.0 mm; Finish Turning/Grinding: ±0.05 mm to ±0.10 mm
- MOQ: 5-10 PCS
Main characteristics of 10222 Open die steel forgings
- High internal soundness - reliable pressure bearing performance
- Uniform forged microstructure - consistent mechanical properties
- Excellent weldability - suitable for pressure equipment fabrication
- Stable elevated-temperature strength - durable under high heat service
10222 Open die steel forging applications
10222 steel for Wind Power
10222 steel for wind power delivers low-temperature toughness and fatigue resistance for reliable critical forgings in harsh environments.
10222 steel For Slewing Bearings
10222 steel for slewing bearings features uniform forged structure and high load capacity for stable performance under combined loads.
10222 steel for Gear Manufacturing
10222 steel for gear manufacturing provides excellent hardenability and contact fatigue strength, supporting precision machining and long service life in heavy transmission systems.
Our production technology for 10222 Open die steel forgings
- EAF
- LF
- VD
- Heating & Forging
- Post-Forge Annealing
- Rough Machining
- NDT
- Q&T Heat Treatment
- Fine Machining
- UT 100% SEP1921 Class 3 D/d or E/e
- Spheroidized microstructure as per standard NADCA207-2003 AS1-AS9
- Macrostructure, microstructure, grain size, and impact toughness shall meet the standards specified in GB/T 1299-2025 for Tool and Die Steels.
mechanical properties & heat treatment of 10222 steel
| Heat temperature | Start forging temperature | Finish forging temperature | Cooling method |
| 1180°C – 1220°C | 1100°C – 1150°C | ≥ 800°C | Slow cooling (Furnace cooling / Pit cooling) |
Annealing
- Heating: Heat slowly and uniformly to 830°C - 870°C (depending on the steel grade, e.g., C45 or 42CrMo).
- Soaking: Hold for 1 to 2 hours after the furnace load reaches temperature to ensure complete phase transformation.
- Cooling: Furnace cool to 500°C at a rate of ≤30°C/hour, then air cool to achieve a soft, machinable structure.
Hardening
- Heating: Heat the ring to 840°C - 880°C (for alloy steel like 42CrMo) or 820°C - 850°C (for carbon steel like A105/C45).
- Soaking: Hold at temperature for 1 to 1.5 hours to ensure uniform austenitization.
- Quenching: Quench in polymer medium or oil with proper agitation to obtain a uniform martensitic structure and minimize distortion.
Stress relieving
- Heating: Heat to 550°C - 620°C (well below the transformation temperature).
- Holding: Hold for 2 to 3 hours to ensure uniform temperature throughout the ring cross-section.
- Cooling: Slow furnace cooling to 350°C, then air cool in still air.
Tempering
- Reheating: Reheat to 550°C - 650°C immediately after quenching to achieve a tempered sorbite structure.
- Soaking: Hold for 2 to 4 hours to stabilize the microstructure and achieve target hardness (e.g., HB 220 - 260).
- Cooling: Air cool to room temperature.
Why Choose NSPM as Your 10222 Open die steel forgings Supplier
Source Direct
Direct mill cooperation ensures stable supply, competitive pricing, and consistent quality. Global resource integration and strong supply chain management guarantee reliable material sourcing and long-term availability.
Stock Ready
50,000+ tons inventory across 11 warehouses enables fast delivery. Flexible cutting, short lead times, and ready stock support urgent demands and improve customers’ production efficiency.
Expert Team
600+ professionals, including R&D specialists and technical engineers, provide application-driven support. Fast response and deep tooling knowledge ensure accurate solutions for diverse industrial needs.
Fully Inspected
Strict quality control system with full traceability, UT testing, and heat treatment records. Certified standards (ISO, CE) ensure every material meets high-performance and reliability requirements.
Full-Chain Machining
From steel supply to precision machining, heat treatment, and equipment manufacturing, NSPM offers integrated solutions that enhance accuracy, efficiency, and overall tooling performance.
