440 stainless steel pipe application
Grade 440 can be devided into the followings Grade: 440A, 440B, 440C. 440 Stainless steel pipe is a kind of hollow circular steel, which is widely used in oil, chemical, medical, food, light industry, mechanical instruments and other industrial pipelines, as well as mechanical structural components.when bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also used as a furniture kitchen utensil.
440 stainless steel pipe advantage
- Corrosion resistance — All types of grade 440 stainless steel have a high corrosion resistance. Therefore, grade 440 is ideal for use in tempered, passivated, and hardened conditions.
- Heat resistance — Grade 440 stainless steel has excellent heat resistance and should not be used at temperatures below a set tempering temperature; over-tempering can result in a loss of mechanical properties.
- Heat treatability — This versatile material can be annealed at about 850-900 °C prior to slow furnace cooling at about 600 °C and air cooling. It can also be heated at 1010-1065 °C then quenched in air or oil for hardening.
- Weldability — During welding, grade 440 stainless steel is preheated at 250 °C, followed by full annealing.
- Machinability — 440 stainless steel can be easily machined in an annealed state.
440 stainless steel pipe chemical composition
Chemical Composition (%) of 440 Stainless Steel Pipe
| C | Mn | Si | Mo | Ni | N | P | S | Cr |
| 0..95-1.20 | 1.00 | 1.00 | 0.75 | - | - | 0.040 | 0.030 | 16.00-18.00 |
440 stainless steel pipe mechanical property
Mechanical Properties of 440 Stainless Stee Pipe
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
| Annealed* | 758 | 448 | 14 | 269HB max# | - |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
440 stainless steel pipe specification
| ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605, | |
Material | 304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201, | |
Surface | Polishing,annealing,pickling,bright | |
Type | hot rolled and cold rolled Seamless or Welded | |
Delivery time | Prompt delivery or as the order quantity. | |
Package | Standard export seaworthy package,or as required. | |
| Widely used in petroleum,foodstuff,chemical industry,construction, electric power,nuclear,energy,machinery,biotechnology,paper | |
Contact | If you have any questions,please feel free to contact me. | |
| 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM | |
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Application
Our steel products are mainly used in chemical industry, petrochemical industry, offshore, seawater pipeline, desalination plant, nuclear engineering, paper and pulp industry.
stainless steel pipe outlet
We are a well known worldwide supply and export stainless steel pipe in following countries：,Italy, Philippines, France，Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.
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