Savoy Piping Inc., we carry a full inventory of ASTM A312 TP321 Stainless Steel Welded Pipe and Supply ASTM A312 TP321 Stainless Steel Welded Pipe austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications.
We Supply ASTM A312 TP321 Stainless Steel Welded Pipes in Grades in Specification ASME SA / ASTM A269, A312, A213 and along with other 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 ASTM A312 TP321 Stainless Steel Welded Pipe with years of Experience in Manufacturing ASTM A312 TP321 Stainless Steel Welded Pipe. we offer high quality, lower cost but the best service. As a result to that our ASTM A312 TP321 Stainless Steel Welded 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.
ASTM A312 TP321 Stainless Steel Welded Pipes Manufacturer, Stockholder and Supplier
At the start of the welded pipe manufacturing process so called slabs or billets are cast in a steel mill. Dependent on the external dimensions and wall thickness there are different methods of producing welded Pipes and Tubes: Electric Resistance Welding (ERW), Fusion Welding (EFW) and Double Submerged Arc Welding (DSAW). In the ERW and EFW manufacturing process welded Pipes are formed by hot or cold rolling plate and welding the seam. In order to keep the outside (O.D.) surface of a welded pipe smooth and uniform a cutting tool called scarfing blade is used to remove the weld flash. Scarfing from the inside (I.D.) welded flash is also possible. With a heat treating at the end of the manufacturing process the weld zone of the steel pipe can be made less visible. Due to the weld seam lower operating pressures are stated in accordance with ASME compared to Seamless Pipes . In general welded Tubes possess tighter dimensional tolerances than Seamless Pipes and are less costly if produced in same quantities
ERW pipes means Electric Resistance Welded Pipe. A plate rolled to become a pipe and welded using Electric Resistance Welding process. Usully for for high diameter. (cheapest process avaiable) ERW Pipes means Electric Resistance Welded Pipes . ERW steel Pipes and Tubes are used in various engineering purposes, fencing, scaffolding, line Pipes etc. ERW steel Pipes and tube are available in various qualities, wall thicknesses, and diameters of the finished Pipes .
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.
|ASTM A312 TP321 Stainless Steel Welded Pipes Specification||ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312|
|ASTM A312 TP321 Stainless Steel Welded Pipes 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.|
|ASTM A312 TP321 Stainless Steel Welded Pipes Type||Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish|
|ASTM A312 TP321 Stainless Steel Welded Pipes Outer Diameter Size|| Seamless - 1/2" NB TO 18" NB
Welded / ERW- 1" NB TO 16" NB
EFW - 8" NB TO 110" NB
|ASTM A312 TP321 Stainless Steel Welded Pipes Wall Thickness||Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness)|
|ASTM A312 TP321 Stainless Steel Welded Pipes Length||01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size.|
|ASTM A312 TP321 Stainless Steel Welded Pipes Ends||Plain Ends / Beveled Ends|
|ASTM A312 TP321 Stainless Steel Welded Pipes Delivery Conditions||As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw|
|ASTM A312 TP321 Stainless Steel Welded Pipes Coating||Electropolish, Mechanical Polish, Satin Finish, Passivated|
|ASTM A312 TP321 Stainless Steel Welded Pipes Other Testing||Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiograph HIC 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|
|ASTM A312 TP321 Stainless Steel Welded Pipes Dimension||All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME|
|ASTM A312 TP321 Stainless Steel Welded Pipes Value Added Services||Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment / Annealed / Bright Annealed|
|ASTM A312 TP321 Stainless Steel Welded Pipes Packaging||Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector|
|ASTM A312 TP321 Stainless Steel Welded Pipes 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|
|ASTM A312 TP321 Stainless Steel Welded Pipes 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
The chemical composition of grade 321 Stainless Steel is outlined in the following tableTypical compositional ranges for grade 321 stainless steels 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|
|321H also has a requirement for a grain size of ASTM No 7 or coarser.|
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|
Grade specifications for 321 grade stainless steel
|Grade||UNS No||Old British||Euronorm||Swedish SS||Japanese JIS|
|321||S32100||321S31||58B, 58C||1.4541||X6CrNiTi18-10||2337||SUS 321|
|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.|
The grade 321 steel can be made into plates, sheets, and coils to be used in the following:
We export ASTM A312 TP321 Stainless Steel Welded 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 ASTM A312 TP321 Stainless Steel Welded Pipes , Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deals in ASTM A312 TP321 Stainless Steel Welded Pipe in India and Overseas, offering a wide range of ASTM A312 TP321 Stainless Steel Welded Pipes .