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Stainless Steel 321H Pipe

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Stainless Steel 321H Pipe
What Is Stainless Steel 321H Pipe?

Stainless steel 321H Pipe is an austenitic compound that is stabilized utilizing titanium or niobium. The grade is a higher carbon modification of the 321 grade of stainless steel. The pipes in this range can withstand higher temperatures ranging up to 1500 degrees F due to their elevated carbon levels. These pipes also offer better tolerances against creep-rupture while resisting intergranular corrosion. The pipes can be readily welded similar to the 321-grade, making use of standard welding procedures.

DIN 1.4878 ERW Tube Vs SS S32109 Seamless Pipe

ERW and seamless components are amongst the important processes used in manufacturing piping equipment. Both these modules can be differentiated based on some basic features.

  • The manufacturing process- Din 1.4878 ERW Tube is rolled and then welded longitudinally in place. A SS S32109 Seamless Pipe is an extruded metal that is produced by passing steel billets.
  • Working pressures- Seamless pipes have 20% extra working pressure in comparison to an erw tube.
  • Strength- Seamless products are generally stronger in comparison to Erw components.
  • Sizes- ERW tubes are available in an array of sizes, while seamless pipes are available in sizes up to 36 NM.
SS 321H Tube Features

Some of the important features of 321H tubes

  • Superior oxidation resistance in temperatures up to 816 degrees C.
  • Excellent performance in low temperatures.
  • Resistant to various forms of corrosive media.
  • Welded with ease making use of standard welding procedures.
  • Enhanced tolerance to intergranular corrosion after welding.
  • Ductile and possess enhanced formability.
ASTM A312 TP 321H Material Application

Astm A312 Tp 321H has many features that make it highly versatile and used in a range of industries and critical applications. This include

  • Chemical and petrochemical processing
  • Pharmaceutical production
  • Aircraft exhaust stacks and manifolds
  • Jet engine parts
  • Welding equipment
  • Waste treatment 
  • Furnaces, burner pipes
  • High-temperature mineral processing
  • Equipment for food processing systems
  • Expansion joints
What Is Grade 321H Boiler Tubes?

Grade 321H boiler tubes are modules that are located on the interior of boilers to heat water and produce steam. There are two types of boilers namely water and fire tube boilers. Manufactured using seamless tubes, the boilers in this grade are able to tolerate rising temperatures and pressures due to their superior composition and tolerances.

SS 321H Pipe Heat Treatment

Grade 321 pipe cannot be treated and hardened by heat treatment. The only procedure to harden these components is through the cold-rolling prices. Pipes within the grade are annealed at high temperatures and quickly quenched with water. This process allows the pipe to possess superior hardness and excellent corrosion resistance properties.

Difference Between SS 321H Welded Pipe And AISI 321H Seamless Tubing

Industrial applications have evolved with time and so have the manufacturing procedures. However, seamless and welded piping equipment is still predominant in the industry. Both these procedures have properties that set them apart from each other. The major difference between these components is the manufacturing process. The AISI 321H Seamless Tubing is pierced by hot billets, and the extruded metal is shaped. In the SS 321H Welded Pipe the metal is rolled and then welded in place. Seamless tubes can be produced in square, rectangular and circular shapes, while welded pipes are always round in shape. Apart from this seamless, tubing can work with higher pressures compared to its welded counterpart.

Table of Content
Stainless Steel 321H Pipe
Stainless Steel 321H Pipe
DIN 1.4878 ERW Tube
DIN 1.4878 ERW Tube
UNS S32109 Seamless Pipe
UNS S32109 Seamless Pipe

UNS S32109 Seamless Pipe Supplier In India Also Check Our Size Range Available In Stock Of DIN 1.4878 ERW Tube

Stainless Steel 321H Pipe Sizes
316 Stainless Steel Pipes OD
mm		Pipe WT
mm		in.SchKg/m
13.721.651/410S0.50
13.722.241/440S0.64
13.723.021/480S0.81
17.151.653/810S0.64
17.152.313/840S0.86
17.153.203/880S1.12
21.342.111/210S1.02
21.342.771/240S1.29
21.343.731/280S1.65
26.672.113/410S1.30
26.672.873/440S1.71
26.673.913/480S2.23
33.402.77110S2.13
33.403.38140S2.54
33.404.55180S3.29
33.406.352)11604.30
42.162.771¼10S2.73
42.163.561¼40S3.44
42.164.851¼80S4.53
42.166.352)1¼1605.69
48.262.771½10S3.16
48.263.681½40S4.11
48.265.081½80S5.49
60.332.77210S3.99
60.333.91240S5.52
60.335.54280S7.60
60.338.742)216011.29
73.033.052½10S5.35
73.035.162½40S8.77
73.037.012½80S11.59
88.903.05310S6.56
88.905.49340S11.47
88.907.62380S15.51
88.9011.132)316021.67
101.603.053½10S7.53
101.605.743½40S13.78
101.608.083½80S18.92
114.303.05410S8.50
114.306.02440S16.32
114.308.56480S22.67
114.3013.492)416034.05
141.306.55540S22.10
141.309.53580S31.44
141.3015.882)516049.87
168.283.4610S14.04
168.287.11640S28.69
168.2810.97680S43.21
168.2814.27612054.75
168.2818.262)616068.59
219.088.18840S43.20
219.0812.7880S65.63
219.0818.23812091.30
219.0823.012)8160112.97
SS 321H Tube Packaging
  • Bundles (hexagonal)
  • Wooden Boxes
  • Crates (steel/wooden)
  • Special crates for U-Bend tubes with each radius separated
  • Packaging for SS 321 ASTM A312 Seamless Pipe as per customer's requirements
SS 321H Chemical Composition
GradeCMnSiPSCrNNiTI
321HMin0.04----17.0-9.004(C+N)
max0.082.000.750.0450.03019.00.1012.000.70 max

ASTM A312 Tp 321H material Manufacturer In Mumbai, 321H Stainless Steel Pipe Available According To International Standards And Specifications, View Its Mechanical Properties


Stainless Steel 321H Seamless Pipe Properties
GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max
321H51520540%95217
ASTM A312 Tp 321H Stainless Steel Pipe Specification
DimensionsASTM, ASME and API
Standard ASTM A312 / ASME SA312
Size1/8″NB TO 30″NB IN
Specialized inLarge Diameter Size
ScheduleSCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS Supplier
FormRound, Square, Rectangular, Hydraulic Etc
Dual certified supplier Dual certified SS 321H Seamless Pipe suppliers in India, accordance to certify ASME SA312 and ASTM A312 American specifications
TypeSeamless / ERW / Welded / Fabricated / LSAW Pipes
LengthSingle Random, Double Random & Cut Length.
EndPlain End, Beveled End, Threaded
321H Stainless Steel Pipe Suppliers in India
Physical Properties of Stainless Steel 321H Welded Pipe
ElementSS 321H
Density8.0 g/cm3
Melting Point1454 °C (2650 °F)
Tensile StrengthPsi – 75000 , MPa – 515
Yield Strength (0.2%Offset)Psi – 30000 , MPa – 205
Elongation35 %
Hardness (Brinell)217

Wide Stock of SS 321H Welded Pipe, Find your properties and Length in our online inventory and save upto 15%

SS 321H Tubing Equivalent
STANDARDWERKSTOFF NR.UNSJISAFNORBSGOSTEN
SS 321H1.4878S32109-----
Stainless Steel 321H Tubing Length

Single random pipe length is usually 18 - 25 feet plain end or 18 - 22 feet threaded and coupled pipes.

SUS 321H Rectangular Pipe Grade
GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS
BSEnNoName
321HS32109321S51-1.4878X6CrNiTi18-10-SUS 321H

We are Largest Stainless Steel 321H Pipe Suppliers in India. Check Available Stock of Stainless Steel 321H Seamless Pipe, Stainless Steel 321H Tubing and Stainless Steel 321H Seamless Tube

SS 321H Tube Types
Stainless Steel 321H Welded Pipe
Stainless Steel 321H Welded Pipe
Stainless Steel 321H Tube
Stainless Steel 321H Tube
ASME SA 213 Tp 321H
ASME SA 213 Tp 321H
Stainless Steel 321H ERW Pipe
Stainless Steel 321H ERW Pipe
ASTM A312 Tp 321H
ASTM A312 Tp 321H
Stainless Steel 321H Seamless Pipe
Stainless Steel 321H Seamless Pipe
SS 321H Pipe
SS 321H Pipe
SS 321H Tube
SS 321H Tube
Stainless Steel 321H Seamless Tube
Stainless Steel 321H Seamless Tube
O.d. 18 Inch Welded Stainless Steel Pipe
O.d. 18 Inch Welded Stainless Steel Pipe
AISI 321H Square Pipe
AISI 321H Square Pipe
Stainless Steel 321H Tubing
Stainless Steel 321H Tubing

We provide Multiple Payment Options Of ASME SA 213 TP 321H Material, Contact US Today For Buy SS 321H Erw Tubing, Suppliers Of SUS 321H Pipes In India.

SS 321H Tube In India, Call For Small Piece Of AISI 321H Square Pipes To Test Before Buying
Stainless Steel 321H Pipe Price
DescriptionPer Unit (INR)
STAINLESS STEEL WELDED PIPES GRADE 321H111
STAINLESS STEEL SEAMLESS PIPES ASTM A312 GRADE TP 321H205
Tolerance of 321H Stainless Steel Boiler Tubes
Stainless Steel 321h Pipes ODASTM A312 TP321H Pipes Tolerance
4 to 35mm+/- 0.08mm
35 to 38mm+/- 0.15mm
38 to 60mm+/- 0.20mm
60 and above+/- 0.25mm
Weight Chart of Stainless Steel 321H ERW Pipe
NPSOutside DiameterWall ThicknessWeightWeight
inmminmmSchedkg/MtrLb/ft
1/2″0.840210.1092.76940 STD1.2680.851
0.1473.73480 STD1.6211.088
3/4″1.050270.1132.87040 STD1.6841.131
0.1543.91280 STD2.1951.474
1″1.315330.1333.37840 STD2.5011.679
0.1794.54780 STD3.3252.172
1 1/4″1.660420.1403.55640 STD3.3852.273
0.1914.85180 STD4.4642.997
1 1/2″1.900480.1453.68340 STD4.0482.718
0.2005.08080 STD5.4093.361
2″2.375600.1543.91240 STD5.4413.653
0.2185.53780 STD7.4805.022
2 1/2″2.875730.2035.51640 STD8.6295.793
0.2767.01080 STD11.4117.661
3″3.500890.2165.48640 STD11.2847.576
0.3007.62080 STD15.27210.253
4″4.5001140.2376.02016.07310.790
0.3378.56022.31814.983
6″6.6251680.1884.77519.25212.924
0.2035.51620.73913.923
0.2195.56322.31814.983
0.2506.35025.35417.021
0.2807.11240 STD58.26318.974
0.3127.92531.33421.036
0.3759.52537.28525.031
0.43210.97380 XHY42.56128.573
0.50012.70048.71932.708
8″8.6252190.1884.77525.23316.940
0.2035.15627.19818.259
0.2195.56329.28619.661
0.2506.3502033.30822.361
0.2777.0363036.78624.696
0.3228.1794042.35228.554
0.3759.52549.21633.041
0.40610.3126053.08535.638
0.50012.70080 XHY64.62743.388
10″10.7502730.1884.77531.58821.207
0.2195.56336.68924.631
0.2506.3502041.75928.035
0.3077.7983051.00234.240
0.3448.73856.94638.231
0.3659.27140 STD63.30140.483
0.43811.12571.85248.238
0.50012.70060 XHY81.53054.735
0.59415.0888095.96964.429
12″12.7503240.1884.77537.57025.222
0.2195.56343.65729.309
0.2506.35049.71333.375
0.2817.13755.73937.420
0.3127.92561.73541.445
0.3759.52573.82449.562
0.40610.31279.72753.525
0.50012.70097.43865.415
0.56214.275108.96673.154
14″14.0003560.1884.77541.30827.732
0.2195.56348.01232.233
0.2506.3502054.68536.713
0.2817.13761.32741.172
0.3127.92567.93945.611
0.3759.525STD81.28154.568
0.43811.1254094.49863.441
0.50012.700XHY107.38172.090
0.62515.875132.98389.278
16”16.0004060.1884.77547.29021.748
0.2195.56354.98036.910
0.2506.3501062.63942.053
0.2817.13770.26847.174
0.3127.9252077.86652.275
0.3448.73885.67757.519
0.3759.525

30

STD

93.21362.578
0.43811.125108.43372.797
0.50012.700

40

XHY

123.28982.770
18″18.0004570.2195.56361.94841.588
0.2506.35070.59347.393
0.2817.13779.20853.176
0.3127.9252087.79258.939
0.3759.525STD105.14470.588
0.43811.12530122.36982.152
0.50012.700XHY139.19893.450
0.56214.27540155.904104.666
0.62515.875172.754115.978
20″20.0005080.2506.35078.54752.733
0.2827.16388.45859.386
0.3127.92597.71965.604
0.3759.52520 STD117.07578.598
0.43811.125136.30591.508
0.50012.70030 XHY155.106104.130
0.59415.08840183.378123.110
0.62515.875192.640129.328
0.68817.475211.368141.901
24″24.0006100.2506.35094.45663.413
0.2817.137106.02971.183
0.3127.925117.57318.932
0.3759.52520 STD140.93864.618
0.43811.125164.176110.219
0.50012.700XHY186.923125.490
0.62515.875232.410156.028
0.68817.47540255.148171.293
0.75019.050277.401186.233
30″30.0007620.2506.350118.31879.433
0.2817.137132.85189.189
0.3127.92510147.35398.925
0.3759.525STD176.731118.648
0.43811.125205.983138.286
0.50012.70020 XHY234.647157.530
0.62515.87530292.066196.078
0.68817.475320.817215.380
0.75019.050348.988234.293
36″36.0009140.2506.350142.18095.453
0.2817.137159.672107.196
0.3127.92510177.133118.918
0.3759.525STD215.525142.678
0.43811.125247.790166.353
0.50012.70020 XHY282.372198.570
0.62515.875351.723236.128

0.688

17.475386.487259.467

0.750

19.050420.576282.353
42″42.00010670.3127.925206.914138.911
0.3759.525STD248.319166.708
0.50012.700XHY33.097221.610
0.75019.050492.163330.413
48″48.00012190.3759.525STD284.112190.738
0.43811.125331.404222.487
0.50012.700XHY377.822253.650
0.75019.050563.750378.473
0.87522.225655.969440.383
We Keep Bulk Stock Of SS 321H Pipe At Our Stockyard, Buy Grade 321H Heat Exchanger and Boiler Tubes In Mumbai
ASME SA 213 Tp 321H EFW Tube Sizes
Wall ThicknessStainless Steel 316 Tube Sizes ( O.D.)
.0101/16" , 1/8" , 3/16"
.0201/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8"
.0121/8"
.0161/8" , 3/16"
.0281/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2"
.0351/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4"
.0493/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4"
.0651/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3"
.0831/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3"
.0951/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2"
.1091/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2"
.1201/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3"
.1253/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4"
.1341"
.2503"
.3753 1/2"
Stainless Steel 321H Tube Testing
  • Radiography test
  • Pitting resistance test
  • Hydrostatic test
  • IGC and PMI test
  • Chemical/Mechanical test
  • Flattening/flaring test
Aisi 321H Smls Pipe Finish
Surface FinishInternal Surface(ID)Exterbal Surface(OD)
Roughness Average(RA)Roughness Average(RA)
μ inchμmμ inchμm
APAnnealed & PickledNot definedNot defined40 or Not defined1.0 or Not defined
BABeight Annealed40,32,25,201.0,0.8,0.6,0.5320.8
MPMechanical Polish40,32,25,201.0,0.8,0.6,0.5320.8
EPElectro Polish15,10,7,50.38,0.25,0.20;0.13320.8
ASTM A312 Tp 321H Density
ElementSS 321H
Density8.0 g/cm3
Stainless Steel 321H Seamless Tube Melting Point
ElementSS 321H
Melting Point1457 °C (2650 °F)

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SS 321H Seamless Pipe

SS 321H Seamless Pipe


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Stainless Steel 321H Welded Pipe

Stainless Steel 321H Welded Pipe


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