Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of X17CrMoV5-9 Alloy Steel (1.7706) | CrMoV Heat Resistant Steel Bar, Plate & Forging Supplier in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
X17CrMoV5-9 is a high-performance chromium–molybdenum–vanadium alloy steel designed for applications requiring excellent high-temperature strength, thermal fatigue resistance, and durability under extreme thermal shock. It is widely used in hot forging tools, die-casting molds, extrusion tools, and structural components exposed to elevated temperatures.
Our supply includes bars, plates, blocks, and forged components with complete mill certification and export-ready packaging for global B2B buyers.
01
High Quality
02
Advanced Equipment
03
Professional Team
04
Custom Service
what is X17CrMoV5-9 Alloy Steel (1.7706)
X17CrMoV5-9 (also known as 1.7706 Cr-Mo-V alloy steel) is a high-performance heat-resistant steel grade engineered for long-term service under high temperature and high pressure conditions.
It is widely used in power generation systems, steam turbines, boilers, petrochemical equipment, and heavy mechanical engineering components.
With its optimized Chromium–Molybdenum–Vanadium alloy system, X17CrMoV5-9 delivers outstanding creep resistance, thermal fatigue strength, and oxidation stability.
Chemical Composition (Typical %)
| Element | Content (%) |
|---|---|
| C | 0.16 – 0.20 |
| Cr | 4.8 – 5.5 |
| Mo | 1.1 – 1.5 |
| V | 0.25 – 0.40 |
| Mn | 0.30 – 0.50 |
| Si | 0.20 – 0.50 |
| P | ≤ 0.025 |
| S | ≤ 0.010 |
| Fe | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Rm) | 900 – 1200 MPa |
| Yield Strength (Rp0.2) | ≥ 750 MPa |
| Hardness (Annealed) | ≤ 220 HB |
| Hardness (After QT) | 44 – 52 HRC |
| Impact Toughness | High (optimized for thermal shock) |
Available Specifications (Metric + Imperial)
Round Bar
| Diameter | Diameter (inch) | Length | Condition |
|---|---|---|---|
| 20–800 mm | 0.78–32" | 2–6 m | Annealed / QT / Forged |
Flat Bar / Plate / Block
| Thickness | Thickness (inch) | Width | Length | Note |
|---|---|---|---|---|
| 20–600 mm | 0.78–24" | 200–2000 mm | 500–6000 mm | Ideal for tool & mold making |
Forged Components
| Type | Range |
|---|---|
| Custom die blocks | Up to 5 tons |
| Rings / Discs | Custom sizes |
| Machined Parts | OEM drawings accepted |
Products Key Features & Benefits
Excellent high-temperature strength and creep resistance
Outstanding thermal fatigue resistance
Superior toughness for hot-work tooling
Good hardness retention at elevated temperatures
High durability and wear resistance under thermal shock
Suitable for high-load hot working processes
Typical Applications
Hot forging dies and inserts
Die-casting tools for aluminum & magnesium
Extrusion tools and mandrels
Hot shear blades
High-temperature shafts and spindles
Molds requiring thermal shock resistance
Components in heat-intensive industrial equipment
Heat Treatment Guide
| Process | Temperature | Note |
|---|---|---|
| Annealing | 750–800°C | Slow cooling (furnace) |
| Preheating | 450–650°C | Before austenitizing |
| Hardening | 1020–1050°C | Oil / air quench |
| Tempering | 540–650°C | Achieves 44–52 HRC |
| Stress Relieving | 600–650°C | After machining |
X17CrMoV5-9 vs 42CrMo4 vs 1.7380
| Property | X17CrMoV5-9 | 42CrMo4 | 1.7380 |
|---|---|---|---|
| High Temp Resistance | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐ |
| Creep Strength | Excellent | Low | Medium |
| Application | Turbine / Boiler | Structural | Pressure vessels |
| Alloy Type | Cr-Mo-V | Cr-Mo | Cr-Mo |
Inspection & Quality Assurance
100% chemical composition analysis
Hardness verification (HB / HRC)
Ultrasonic testing (UT) for internal defects
Dimensional, straightness & surface inspection
Machining allowance control for tool steel blocks
EN 10204 3.1 / 3.2 MTC available
Third-party inspections: SGS / TUV / BV / Intertek
Why Choose Our X17CrMoV5-9 Steel?
Stable metallurgical quality control
Vacuum / ESR refining available
Precise heat treatment control
Custom size & forging service
Export packaging for global shipping
Full mill test certificate (EN 10204 3.1 / 3.2)
Whether you need die steel blocks, precision-forged parts, or machining-ready plates, our team delivers consistent quality, competitive pricing, and fast export shipment.
Contact us now to get a quick quotation, material recommendation, and technical support for your tooling or high-temperature application project.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: What is the main advantage of X17CrMoV5-9 over common hot-work steels like H13?
A: X17CrMoV5-9 offers higher hot strength, better creep resistance, and improved thermal shock stability, making it suitable for more extreme thermal cycling environments.
Q2: What hardness level can be achieved after heat treatment?
A: Typically 44–52 HRC depending on quenching and tempering conditions.
Q3: Is it suitable for die-casting applications?
A: Yes. It performs exceptionally well in aluminum, magnesium, and low-melting alloy die-casting, with long tool life and reduced cracking.
Q4: Can you supply forged blocks with machining allowance?
A: Yes. We provide pre-machined, rough machined, or finished machined blocks according to OEM drawings.
Q5: Does it maintain strength at high temperature?
A: Yes. X17CrMoV5-9 retains excellent mechanical strength and hardness at elevated temperatures, ideal for heavy-duty hot work environments.
Q6: Do you offer UT-tested bars and plates?
A: Yes. We offer UT Level 3 / ASTM A388 inspection for tool steels.
Q7: Can you provide small MOQ for mold shops?
A: Yes. Small cut pieces, plates, and bars can be supplied with flexible minimum order quantities.
Hot Tags: X17CrMoV5-9 Alloy Steel (1.7706) | CrMoV Heat Resistant Steel Bar, Plate & Forging Supplier, China X17CrMoV5-9 Alloy Steel (1.7706) | CrMoV Heat Resistant Steel Bar, Plate & Forging Supplier manufacturers, suppliers, factory, 440C Stainless Steel
