20X23H18 High Temperature Stainless Steel Tubing Stainless Steel Seamless Pipe For Boiler
20X23H18 High Temperature Stainless Steel Tubing Stainless Steel Seamless Pipe For Boiler
Material
20X23H18 is a high-temperature, heat-resistant stainless steel commonly used for boilers and heat exchanger tubing. It exhibits excellent corrosion resistance, high strength, and stability under high thermal conditions.
Specification
- Product Name: 20X23H18 Stainless Steel Seamless Pipe
- Shape: Round Tube
- Outer Diameter: Customized range (typically 6mm - 426mm)
- Wall Thickness: Customized as per standards (typically 1.0mm - 50mm)
- Length: Typically customized length, standard 5.8 meters, 6 meters, or as specified by customer
- Standards: ASTM, EN, DIN, GB, GOST, JIS
Key Features
- Excellent high-temperature strength and oxidation resistance
- Superior thermal stability
- Good corrosion and erosion resistance
- Durable in extremely aggressive environments
- High resistance to scaling in elevated temperatures
- Long service life with relatively low maintenance requirements
Chemical Composition
| Element | Percentage (%) |
|---|---|
| C | ≤ 0.20 |
| Si | 0.60 - 1.00 |
| Mn | ≤ 2.00 |
| P | ≤ 0.035 |
| S | ≤ 0.030 |
| Cr | 22.00 - 25.00 |
| Ni | 17.00 - 20.00 |
| Fe | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 500 |
| Yield Strength (MPa) | ≥ 205 |
| Elongation (%) | ≥ 35 |
| Hardness (HBW) | ≤ 223 |
Equivalent Grades
| GB Standard | ASTM/AISI | EN | GOST | JIS |
|---|---|---|---|---|
| 20X23H18 | TP310S (S31008) / 310 | X8CrNi25-21 (1.4845) | 20Х23Н18 | SUS310S |
Application
The 20X23H18 stainless steel seamless pipes and tubing are primarily used in:
- Boilers and heat exchangers operating under severe high-temperature conditions
- Industrial furnaces and ovens, particularly the heating elements
- Petroleum and petrochemical industries
- Chemical industry equipment dealing with corrosive media
- Power-generation plants, including superheaters, steam pipelines, and reheaters
- Automotive exhaust systems, gas turbines, and aerospace heat-treatment equipment


Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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