1.4922 (X20CrMoWV12-1) Stainless Steel | High-Temperature Strength | Power Generation
Review
Description
1.4922 (X20CrMoWV12-1) Stainless Steel
Introduction
1.4922 (X20CrMoWV12-1) is a martensitic heat-resistant stainless steel, primarily alloyed with chromium, molybdenum, tungsten, and vanadium. It exhibits excellent high-temperature strength, creep resistance, and oxidation resistance, making it ideal for critical components in power generation and aerospace industries. We supply this material in various forms including steel bars and steel forgings.
| Standard | Grade |
|---|---|
| UNS | S42200 |
| DIN EN | 1.4922, X20CrMoWV12-1 |
| GOST | 20X12HMoV |
| GB | 2Cr12NiMo1W1V |
Applications
- Steam turbine blades and discs
- Boiler and pressure vessel components
- Aerospace engine parts
- High-temperature fasteners and shafts
Standards
- DIN EN 10302: Heat-resistant steels and nickel-base alloys - Bars, forgings, bright products, wires, plates and sheets
- ASTM A565: Standard Specification for Martensitic Stainless Steel Bars for High-Temperature Service
- JIS G4311: Stainless steel bars for high-temperature service
Size Range & Delivery
We offer a wide size range to meet diverse project needs, supported by our 6000-ton forging press and radial forging machine:
- Hot Rolled Bars: Round bars φ20mm - φ400mm; Flat bars 20mm - 300mm (thickness) × 50mm - 800mm (width)
- Forged Bars: Round bars φ80mm - φ1200mm; Flat bars 50mm - 600mm (thickness) × 100mm - 1500mm (width)
Delivery & MOQ: Conventional sizes are in Ready Stock with delivery within 7 days, MOQ 1 piece. Custom forgings/rolled products have an MOQ of 3 tons with delivery in 30 days. For small-batch melting, we support 3-5 tons MOQ via small furnaces; for large batches, 30-60 tons electric arc furnaces ensure fast delivery.
Chemical Composition
| Element | 1.4922 (DIN EN) | S42200 (ASTM) |
|---|---|---|
| C | 0.18 - 0.24 | 0.20 - 0.25 |
| Cr | 11.0 - 12.5 | 11.0 - 12.5 |
| Mo | 0.80 - 1.20 | 0.80 - 1.25 |
| W | 0.40 - 0.60 | 0.40 - 0.70 |
| V | 0.25 - 0.35 | 0.20 - 0.40 |
| Ni | 0.30 - 0.80 | 0.50 - 1.00 |
| Si | ≤ 0.50 | ≤ 0.50 |
| Mn | ≤ 1.00 | ≤ 1.00 |
| P | ≤ 0.030 | ≤ 0.030 |
| S | ≤ 0.020 | ≤ 0.025 |
Smelting Process
We adopt flexible smelting routes to meet different quality requirements:
- Standard Route: EAF (Electric Arc Furnace) + LF (Ladle Furnace) + VD (Vacuum Degassing)
- High-Purity Route: EAF + LF + VD + ESR (Electroslag Remelting) or PESR (Pressurized Electroslag Remelting)
- Ultra-High-Purity Route: VIM (Vacuum Induction Melting) + VAR (Vacuum Arc Remelting)
Customized smelting combinations are available upon consultation.
Mechanical Properties
| Heat Treatment Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| Quenched & Tempered | ≥ 930 | ≥ 760 | ≥ 12 | 269 - 321 |
Heat Treatment
- Annealing: 850 - 900°C, slow cooling in furnace
- Quenching: 1020 - 1070°C, oil or air cooling
- Tempering: 650 - 750°C, air cooling (double tempering recommended for optimal properties)
Surface Finish
We provide multiple surface finish options tailored to different product forms:
- Black Skin (As-Rolled/Forged): Suitable for bars and forgings; no additional machining
- Turned: Round bars; surface roughness Ra 6.3 - 12.5 μm; diameter tolerance ±0.1mm
- Ground: Round bars; surface roughness Ra 0.8 - 3.2 μm; diameter tolerance ±0.05mm
- Milled: Flat bars and forgings; surface roughness Ra 3.2 - 6.3 μm; thickness/width tolerance ±0.2mm
- CNC Machined: Custom-shaped components; precision tolerances up to ±0.01mm available upon request
Inspection & Certification
We implement strict three-stage inspection to ensure product quality:
- Pre-Production: Raw material composition verification via spectrometer
- In-Production: Dimensional checks and process monitoring at every stage
-
Post-Production:
- Ultrasonic Testing (UT) per EN 10228 or ASTM A388; 100% inspection for critical components, sampling inspection for standard products
- Chemical composition, mechanical properties, dimensional accuracy, and metallographic structure verification
Certification: EN 10204 3.1 certificates are provided as standard; 3.2 certificates, SGS, or TUV inspections are available upon request. FUSHUN METAL’s production system complies with ISO 9001:2015.
Packaging
- Black Skin Products: Steel wire捆扎 (bundled with steel wire) to ensure no damage to containers during shipping
- Bright Surface Products: Wrapped in anti-rust paper, plastic film, or wooden cases; custom packaging materials available to protect surface roughness and dimensional accuracy
- Anti-Rust Protection: All products are coated with anti-rust oil to prevent corrosion during ocean transportation
FAQ
Q: Can you cut 1.4922 (X20CrMoWV12-1) to my specific length?
A: ✓ Yes, we offer custom cutting services to your required length.
Q: What is the hardness of 1.4922 in annealed condition?
A: The hardness of 1.4922 in annealed condition is typically ≤ 255 HB.
Q: What is the delivery time for custom forged 1.4922 bars?
A: Custom forged 1.4922 bars have a delivery time of approximately 30 days, subject to order quantity and complexity.
Q: Can you provide EN 10204 3.2 certificates for 1.4922?
A: ✓ Yes, EN 10204 3.2 certificates, as well as SGS or TUV inspections, are available upon request.
