Savoy Piping Inc., we carry a full inventory of 321 Stainless Steel Pipes and Supply 321 Stainless Steel Pipes and Tube austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications
We Supply 321 Stainless Steel Pipes in Grades in Specification ASME SA / ASTM A269, A312, A213 and Grades 202, 304, 304L, 304H, 304LN, 309s, 310s, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, 254 SMO , 6MO , 6 MOLY, UNS S31254 etc. The grade indicates the testing methods required for a given application.
Savoy Piping Inc. specializes in 321 Stainless Steel Pipes and Tube with years of Experience in Manufacturing 321 Stainless Steel Pipes. we offer high quality, lower cost but the best service. As a result to that our 321 Stainless Steel Pipes export account today is in various countries like Iran, Iraq, Kuwait, Saudi Arabia, Oman, UAE, Singapore, Malaysia, Indonesia, South korea, Chile, Peru, Venezuela, Australia, Nigeria, Angola, Senegal, Mozambique, Algeria, Libya, Azerbaijan, Netherlands, Brazil, Norway, United Kingdom, Mexico, Canada etc.
321 STAINLESS STEEL PIPES MANUFACTURER, STOCKHOLDER AND SUPPLIER
Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilised by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.
Grade 321H is a modification of 321 with a higher carbon content, to provide improved high temperature strength.
A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred - the niobium performs the same carbide stabilisation task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.
Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.
Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 500°C.
321 Stainless Steel Pipes Range
321 Stainless Steel Pipe Specification |
ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
321 Stainless Steel Pipe Grades |
202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
321 Stainless Steel Pipe Type |
SEAMLESS / WELDED / ERW / EFW / COLD DRAW / HOT FINISH / COLD FINISH |
321 Stainless Steel Pipe Outer Diameter Size |
SEAMLESS - 1/2" NB TO 18" NB WELDED / ERW- 1" NB TO 16" NB EFW - 8" NB TO 110" NB |
321 Stainless Steel Pipe Wall Thickness |
Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness) |
321 Stainless Steel Pipe Length |
01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
321 Stainless Steel Pipe Ends |
Plain Ends / Beveled Ends |
321 Stainless Steel Pipe Delivery Conditions |
As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw |
321 Stainless Steel Pipe Coating |
Electropolish, Mechanical Polish, Satin Finish, Passivated |
321 Stainless Steel Pipe Other Testing |
Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc |
321 Stainless Steel Pipe Dimension |
All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME |
321 Stainless Steel Pipe Value Added Services |
Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
321 Stainless Steel Pipe Packaging |
Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
321 Stainless Steel Pipe Shipment & Transportation |
By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
321 Stainless Steel Pipe Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
CHEMICAL COMPOSITION OF 321 STAINLESS STEEL PIPES
The chemical composition of grade 321 Stainless Steel is outlined in the following tableTypical compositional ranges for grade 321 stainless steels Pipes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
| 321 | min. max |
- 0.08 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
0.10 | Ti=5(C+N) 0.70 |
| 321H | min. max |
0.04 0.10 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
- | Ti=4(C+N) 0.70 |
MECHANICAL PROPERTIES OF 321 STAINLESS STEEL PIPES
The mechanical properties of grade 321 Stainless Steel are displayed in the following table.
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 321H also has a requirement for a grain size of ASTM No 7 or coarser. | |||||
321 STAINLESS STEEL PIPES PHYSICAL PROPERTIES
Physical properties of 321 grade stainless steel in the annealed condition
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
GRADE SPECIFICATION COMPARISON FOR 321 STAINLESS STEEL PIPES
Grade specifications for 321 grade stainless steel
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321H |
| 347 | S34700 | 347S31 | 58G | 1.4550 | X6CrNiNb18-10 | 2338 | SUS 347 |
| These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. | |||||||
• ASTM A312 TP 321 Stainless Steel Seamless Pipes
• ASTM A213 TP 321 Stainless Steel Seamless Tubes
• ASTM A312 TP 321 Stainless Steel Welded Pipes
• ASTM A249 TP 321 Stainless Steel Welded Tubes
• SS 321 Seamless Pipes
• SS 321 ERW Pipes
• SS 321 EFW Pipes
• SS 321 Welded Pipes
• SS 321 Rectangular Pipes
• SS 321 Seamless Tubes
• SS 321 ERW Tubes
• SS 321 EFW Tubes
• SS 321 Welded Tubes
• SS 321 Rectangular Tubes
SUPPLYING 321 STAINLESS STEEL PIPES TO COUNTRIES -
We export 321 Stainless Steel Pipes to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Mayanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherland, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc
Savoy Piping Inc. is a well known worldwide Exporter of 321 Stainless Steel Pipes, Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deals in 321 Stainless Steel Pipes in India and Overseas, offering a wide range of 321 Stainless Steel Pipes
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