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This article provides a comprehensive overview of the ferritic stainless steel tubes specified under GB/T 30066, including their material specifications, key features, chemical composition, mechanical properties, similar standards, and steel grades. These tubes are primarily used in heat exchangers due to their excellent corrosion resistance and mechanical strength.
The ferritic stainless steel tubes covered by GB/T 30066 include the following grades:
These materials are designed for high-temperature and corrosive environments, making them ideal for use in heat exchangers.
Below is the chemical composition of the specified grades:
| Grade | C | Si | Mn | P | S | Cr | Ni | Ti |
|---|---|---|---|---|---|---|---|---|
| 06Cr11Ti | ≤0.08 | ≤1.0 | ≤1.5 | ≤0.035 | ≤0.030 | 11.0-13.0 | - | 0.5-0.8 |
| 022Cr11Ti | ≤0.03 | ≤1.0 | ≤1.5 | ≤0.030 | ≤0.020 | 10.5-12.5 | - | 0.5-0.8 |
| 022Cr12Ni | ≤0.03 | ≤1.0 | ≤1.5 | ≤0.030 | ≤0.020 | 11.5-13.5 | 1.5-3.0 | - |
| 06Cr13 | ≤0.08 | ≤1.0 | ≤1.5 | ≤0.035 | ≤0.030 | 12.0-14.0 | - | - |
| 06Cr14Ni2MoTi | ≤0.08 | ≤1.0 | ≤1.5 | ≤0.035 | ≤0.030 | 13.0-15.0 | 1.5-2.5 | 0.5-0.8 |
The mechanical properties of these grades are as follows:
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| 06Cr11Ti | ≥205 | ≥490 | ≥25 | ≤200 |
| 022Cr11Ti | ≥205 | ≥490 | ≥25 | ≤200 |
| 022Cr12Ni | ≥205 | ≥490 | ≥25 | ≤200 |
| 06Cr13 | ≥205 | ≥490 | ≥25 | ≤200 |
| 06Cr14Ni2MoTi | ≥205 | ≥490 | ≥25 | ≤200 |
Other steel grades that may be considered similar include:
The ferritic stainless steel tubes specified under GB/T 30066 are predominantly used in heat exchangers across various industries, including:
These tubes offer a balance of cost-effectiveness and performance, making them a popular choice for demanding industrial applications.
GB/T 30066 specifies a range of ferritic stainless steel tubes that are well-suited for heat exchanger applications. Their robust chemical composition and mechanical properties ensure reliable performance in high-temperature and corrosive environments. By adhering to international standards, these materials provide a globally recognized solution for industrial heat transfer needs.
A: manufacturer,also can do trading.
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.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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