UNS S32109 Round Pipe
S32109 belongs to American standard austenitic stainless steel, executive standard: ASTM A240/A240M-19
S32109 stainless steel pipe has good corrosion resistance, especially in oxidizing media. Due to its good heat resistance and oxidation resistance, it is mostly used as heat-resistant steel.
Stainless steel 321 pipe is a stable version of stainless steel 304. The 18/8 mixture of chromium and nickel is tempered with titanium to protect Type 321 from intergranular corrosion that can occur after heat treatment. It can withstand temperatures from 800 to 1500° F. This metal offers high strength and resistance to all forms of corrosion, including from aqueous environments. The Type 321 is suitable for heavy welded components and dynamic environments subject to change.
S32109 stainless steel chemical composition: Carbon C: 0.04~0.10, Silicon Si: ≤0.75, Manganese Mn: ≤2.00, Phosphorus P: ≤0.030, Sulfur S: ≤0.030, Chromium Cr: 17.00~20.00, Nickel Ni: 9.00~13.00, Other elements: Ti≥4C~0.60.
S32109 corresponding grades: GB-T standard: digital grade: S32169, new grade: 07Cr19Ni11Ti, old grade: 1Cr18Ni11Ti, 2. American standard: ASTMA standard: S32109, UNS standard: 321H, Japanese standard JIS standard: SUS321HTB German standard DIN standard : 1.4940, European standard EN standard: "X8CrNiTi18-10, British standard BS standard: 321s20.
Stainless Steel UNS S32109 Pipes Equivalent Grades
| Grade | 321H | |
| UNS No | S32109 | |
| Old British | BS | 321S51 |
| En | – | |
| Euronorm | No | 1.4878 |
| Name | X10CrNiTi18-10 | |
| Swedish SS | – | |
| Japanese JIS | SUS 321H | |
ASTM A312 UNS S32109 Pipes Mechanical Properties
| Grade | UNS S32109 | |
|---|---|---|
| Tensile Strength (MPa) min | 515 | |
| Yield Strength 0.2% Proof (MPa) min | 205 | |
| Elongation (% in 50mm) min | 40 | |
| Hardness | Rockwell B (HR B) max | 95 |
| Rockwell B (HR B) max | 217 | |
Stainless Steel UNS S32109 Seamless Pipes
S32109 Stainless steel physical properties: ①Density Density (20℃)/kg/dm3: "8.03, Magnetism: None.
Mechanical properties of S32109 stainless steel: ⑴ Delivery status: solution treatment of rods, solution pickling of plates, ⑵ tensile strength (RM/MPa) 520, ⑶ elongation strength (Rp0.2/MPa): 205, ⑷ elongation A/%: 40, ⑸ Area shrinkage (Z/%): 50.
321H stainless steel heat treatment:
① Hardness HBW≤: solid solution 187, hardness HRB≤: 90, ② Heating temperature: 920~1150, ③ Heating method: quick cooling.
321H stainless steel application areas: used in the manufacture of boiler superheaters, heat exchangers, condensers, catalytic tubes, cracking tube devices and other steel pipes and fittings.
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