Products Specification
| Company Name: | Gnee Steel |
| Country/Region: | China |
| Port of Shipment: | Shanghai Port China |
| Client: | Asia |
| Delivery date: | Dec, 2021 |
| Standard: | GB/T150.2-2011 |
| Material: | 09CrCuSb |
| Size: | OD.60.3mm * W.T. 3mm * L 5100mm |
| Production type: | Normalizing |
09CrCuSb Cold Finished Alloy Steel Seamless Tubes Chemical Compositions Test
| Chemical Components (%) | ||||||||
| C | Si | Mn | P | S | Cr | Sb | Cu | |
| 09CrCuSb Material | 0.12 max | 0.20-0.40 | 0.35-0.65 | 0.030 max. | 0.020 max. | 0.70-1.10 | 0.04-0.10 | 0.25-0.45 |
| Actual data | 0.08 | 0.24 | 0.50 | 0.015 | 0.002 | 0.82 | 0.06 | 0.26 |
09CrCuSb Cold Finished Alloy Steel Seamless Tubes Mechanical Tests Required
| Mechanical properties | ||||
| Content | Tensile Strength (Longitudinal) At RT | Corrosion resistance rate | ||
| Unit | Rp0.2 (MPa) | Rm (MPa) | A 50mm | mg/cm².h |
| Actual test data | 291/299 | 410/420 | 46.5/46.5 | 7.0 |
What is 09CrCuSb steel?
09CrCuSb, also known as ND steel, is a low-alloy corrosion-resistant steel specially designed for use in acidic dew point corrosion environments. It contains alloying elements such as chromium (Cr), copper (Cu), and antimony (Sb), which significantly enhance its resistance to sulfuric acid and flue gas corrosion.
Why is 09CrCuSb called ND steel?
"ND" stands for Nitric acid and Dew-point corrosion resistance. The steel was developed to withstand low-temperature acid condensation corrosion commonly found in boilers, heat exchangers, and flue gas systems.
Does 09CrCuSb steel have good weldability?
Yes. 09CrCuSb steel has good weldability. Standard welding methods such as SMAW, SAW, and TIG can be used, but low-hydrogen electrodes and proper preheating may be recommended for thicker sections.
Is 09CrCuSb suitable for high-temperature service?
09CrCuSb is mainly designed for medium-temperature environments where acid dew point corrosion occurs. It is not intended for extremely high-temperature pressure vessel applications without proper evaluation.
