Product: HK40 High Temperature Resistant Steel Castings
MOQ: 1 piece
Model NO: Customized OEM
Size: Custom as drawing
Machining tolerance: ±0.01mm
Application: Industrial Furnace, Heat Treatment Furnace, Rotary Kiln, Radiant Tube, Furnace Base Parts
Material: HK40 Heat Resistant Steel (2535Nb, 25Cr35NiNb)
Surface Treatment: Precision Machining, Pickling, Sandblasting
Manufacturing Process: Investment Casting, Sand Casting, Solution Heat Treatment
Plant: Professional Heat-Resistant Casting Factory
After-sales Service: 24 Hours Online Support
Warranty: Quality Guaranteed
Certification: ISO 9001, CE
Standard: ASTM A297, ASME, DIN, GB
Inspection: UT, RT, Metallographic Test, High Temperature Performance Test, Hardness Test
Application: Industrial furnace components, petrochemical furnace, heat treatment furnace, continuous annealing furnace, rotary kiln, radiant tubes, furnace rollers, furnace hangers, tray fixtures
Color: Natural Alloy Color
Delivery Time: 15–40 days, negotiable
Transport Package: Seaworthy Wooden Case + Steel Frame Anti-collision Packaging
Advantage: Excellent high temperature oxidation resistance, long creep life, thermal shock resistance, custom structure available
HK40 Chemical Composition (wt%)
| Element |
C |
Cr |
Ni |
Nb |
Si |
Mn |
S |
P |
| HK40 |
0.35–0.55 |
24.0–27.0 |
34.0–37.0 |
1.0–1.8 |
≤1.50 |
≤1.50 |
≤0.04 |
≤0.04 |
Core Features
- Ultra-high temperature resistance: Long-term working temperature up to 1100℃–1200℃
- Outstanding anti-oxidation and anti-carburizing performance in furnace atmosphere
- Excellent high-temperature creep strength and thermal fatigue resistance
- Resist thermal shock, not easy deformation or cracking under frequent temperature rise and fall
- Stable metallographic structure at high temperature, long service life
- Good castability, weldability and machinability for complex furnace parts
Main Typical Products
- Industrial furnace radiant tubes, furnace rollers
- Furnace trays, fixture hangers, support beams
- Rotary kiln lining segments, furnace grate parts
- Heat treatment furnace charging and discharging accessories
- All custom high-temperature structural castings per drawings
Applicable Scenarios
Industrial furnace, petrochemical heating furnace, metallurgical heat treatment furnace, continuous annealing furnace, cement kiln, thermal power boiler high-temperature components, high-temperature carburizing and sintering furnace equipment.
FAQ
Q: What is HK40 equivalent grade?
A: HK40 = 2535Nb / 25Cr35NiNb, standard ASTM A297 HK40.
Q: Can you make custom shapes by drawing?
A: Yes, fully OEM customized size, structure and dimension according to your drawings.
Q: What is the maximum working temperature?
A: Stable continuous service up to 1200℃.
Q: Do you do high-temperature performance inspection?
A: Yes, high-temperature oxidation test, creep performance and NDT inspection are available.
Our Advantages
- Specialized in HK40 / HP40 / 2520 high temperature heat-resistant castings for many years
- Strict formula and heat treatment process to ensure high-temperature creep life
- Complete NDT and high-temperature performance testing system
- Export to global industrial furnace and thermal engineering customers steadily
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