STAINLESS STEEL SEAMLESS PIPES 321
321 Stainless Steel Seamless pipes | SS 321 Seamless pipes | Exporter of comprehensive range 321 Stainless Steel Seamless pipes
STAINLESS STEEL SEAMLESS PIPES 321 manufacturer
Suppliers and Exporter of ASTM A312 TP321 STAINLESS STEEL SEAMLESS pipes 321 in India.
Suppliers and Exporters of ASTM A312 TP321 Stainless Steel Pipes in India.
317L 321 Stainless Steel Seamless Pipes Specification
|Specifications||:||ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790|
|Sizes (Seamless)||:||1/2" NB - 24" NB|
|Sizes (ERW)||:||1/2" NB - 24" NB|
|Sizes (EFW)||:||6" NB - 100" NB|
|Wall Thickness available||:||Schedule 5S - Schedule XXS (heavier on request)|
|Other Materials Testing||:||NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.|
|Dimensions||:||All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.|
321 (UNS S32100) is a standard austenitic 18/8 chromium nickel combination with the expansion of Titanium settling on it a brilliant decision in hoisted temperature situations.
The titanium balances out the material evacuating its helplessness to the impacts of inter granular consumption. 321 is consequently the stainless steel material of decision for applications in workplaces up to 9000 C.
A disadvantage of Type 321 is that the titanium does not exchange well over a high temperature circular segment, so it is not suggested as a welding consumable.
In such occurrences, 347 is the favored decision as the Niobium performs the same capacity as Titanium yet can be still exchanged over a high temperature circular segment. Sort 347 is in this way the consumable of decision for welding Grade 321.
The steel has astounding framing and welding qualities and superb sturdiness even at cryogenic temperatures. On the off chance that you are searching for a stainless steel to give imperviousness to inter granular erosion, 304L is the ordinary decision as it is an all the more regularly utilized and supplied steel.
Be that as it may, 321 is a vastly improved alternative in working temperature situations in overabundance of 5000 C and thusly have its own benefits.
Note that Type 321 does not clean well so it is not commonsense to utilize this material as nonessential compositional highlight.
Alloy 321 stainless steel plate displays great general consumption resistance that is equivalent to 304. It was produced for utilization in the chromium carbide precipitation scope of 1800 – 1500°F (427 – 816°C) where un-settled combinations, for example, 304 are liable to inter granular assault.
The alloy can be utilized as a part of most weakened natural acids at moderate temperatures and in unadulterated phosphoric corrosive at lower temperatures and up to 10% weakened arrangements at lifted temperatures. Alloy 321 opposes poly-thionic corrosive anxiety consumption breaking in hydrocarbon administration. It can likewise be used in chloride or fluoride free acidic arrangements at moderate tempera
Working temperatures of 2100 – 2300°F (1149 – 1260°C) are prescribed for fashioning, irritating and other hot working courses of action. Don't work this amalgam at temperatures underneath 1700°F (927°C). Material must be water extinguished or completely strengthened in the wake of attempting to re-accomplish most extreme erosion res
Quite ductile and forms easily.
Alloy 321 stainless steel plate can be promptly welded by most standard methodologies. A post weld heat treatment is redundant.
The frosty work solidifying rate of 321 stainless steel plate makes it less machine capable than 410 stainless steel, yet like 304.
|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 grade stainless steel:
|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 :
|Grade||Density (kg/m3)||Elastic Modulus (GPa)||Mean Coefficient of Thermal Expansion (m/m/0C)||Thermal Conductivity (W/m.K)|
|0-1000C||0-3150C||0-5380C||at 1000C||at 5000C|
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 material not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.|
|Pipe Type||NB Sizes||Sch 5||Sch 10||Sch 40||Sch 80||Sch 160|
|321 Stainless Steel Seamless Pipes||1/8″|
|321 Stainless Steel Seamless Pipes||1/4″|
|321 Stainless Steel Seamless Pipes||3/8″|
|321 Stainless Steel Seamless Pipes||1/2″|
|321 Stainless Steel Seamless Pipes||3/4″|
|321 Stainless Steel Seamless Pipes||1″|
|321 Stainless Steel Seamless Pipes||1 1/4″|
|321 Stainless Steel Seamless Pipes||1 1/2″|
|321 Stainless Steel Seamless Pipes||2″|
|321 Stainless Steel Seamless Pipes||2 1/2″|
|321 Stainless Steel Seamless Pipes||3″|
|321 Stainless Steel Seamless Pipes||4″|
|321 Stainless Steel Seamless Pipes||5″|
|321 Stainless Steel Seamless Pipes||6″|
|Chemical Composition in Weight Percent per ASTM A240 for Cited Alloys|
|Element||Type 317L||Type 317LMN|
|Carbon||0.03 max||0.03 max|
|Silicon||0.75 max||0.75 max|
|Chromium||18.00 - 20.00||17.00 - 20.00|
|Nickel||11.00 - 15.00||13.50 - 17.50|
|Molybdenum||3.00 - 4.00||4.00 - 5.00|
|Phosphorus||0.04 max||0.04 max|
|Sulfur||0.03 max||0.03 max|
|Nitrogen||0.10 max||0.10 - 0.20|
Mechanical Properties :
|Minimum Mechanical Properties per ASTM A-240 for Cited Alloys|
|Property||Alloy 317L||Alloy 317LMN|
|Ultimate Tensile Strength, ksi (MPa)||75 (515)||80 (550)|
|0.2% Yield Strength, ksi (MPa)||30 (205)||35 (240)|
|% Elongation in 2″ (5.1 cm)||40||40|
Physical Properties :
The physical property data which follows represent the iron-chromium-nickel-molybdenum class of stainless steels. For all practical purposes, the data are applicable to 317LMN and Alloy 317L stainless steels. All properties are at room temperature (68°F, 20°C) unless stated otherwise.
|Density||0.29 8.0||lb/in3 g/cm3|
|Modulus of Elasticity||29•106 200||psi Gpa|
|Melting Range||2410 to 2550 1320 to 1400||° F °C|
|Thermal Conductivity 68 to 212°F 20 to 100°C||100.8 14.6||Btu/ft2-hr-°F-in Watts/m- K|
|Coefficient of Thermal Expansion 77°F (25°C) to: 212°F (100°C) 932°F (500°C) 1832°F (1000°C)||9.2 (16.5) 10.1 (18.2) 10.8 (19.5)||10-6/°F (10-6/°C) 10-6/°F (10-6/°C) 10-6/°F (10-6/°C)|
|Specific Heat||0.11 0.46||Btu/lb-°F J/g-°K|
|Electrical Resistivity||31.1 0.79||µ-ohm-in µ-ohm-in|
|Magnetic Permeability Fully annealed 0.5″ plate 65% cold-worked 0.5″ plate||1.0028 1.0028||µ at H = 200 oe µ at H = 200 oe|
• High strength
• Resistant to high mechanical stresses
• Resistant to high pressure
• Resistant to high temperature
• Good formability
• Chemical Industry
• Oil and Gas Pipeline
• Water Supply Systems
• Oil & Gas Industry
• Power Plant
• Paper & Pulp Industry