What are the key properties and characteristics of stainless steel 309 / 309S large-diameter pipes?

Stainless steel 309 and 309S Large-Diameter Pipes possess several key properties and characteristics that make them highly desirable for various industrial applications. These pipes exhibit excellent corrosion resistance, particularly in oxidizing and reducing conditions. This corrosion resistance is attributed to the high levels of chromium, nickel, and iron in the stainless steel composition. Additionally, stainless steel 309 / 309S large-diameter pipes offer exceptional resistance to high temperatures, making them suitable for heat treatment, furnace parts, and thermal processing equipment applications.

Another unique property is their superior strength and toughness, effectively allowing these pipes to withstand mechanical stresses and structural loads. This strength is primarily due to the alloying elements, such as chromium, nickel, and manganese, which form a stable austenitic microstructure. Moreover, stainless steel 309 / 309S large-diameter pipes exhibit good weldability and formability, facilitating ease of fabrication and installation.

Table Of Content

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How does the corrosion resistance of stainless steel 309 / 309S large-diameter pipes compare to other stainless steel grades?

The corrosion resistance of stainless steel 309 large-diameter pipes is considered excellent compared to many other stainless steel grades. The high levels of chromium, nickel, and iron in the composition of Stainless Steel 309 contribute to its superior corrosion resistance properties. Chromium forms a passive oxide layer on the surface of the steel, protecting it from corrosive agents and preventing further oxidation. Compared to austenitic stainless steel grades such as 304 and 316, stainless steel 309 offers enhanced resistance to high-temperature corrosion and oxidation.

The corrosion resistance of Stainless Steel 309S Large-Diameter Pipes is generally comparable to other stainless steel grades, with some variations depending on the specific corrosive environment. Stainless steel 309S is austenitic stainless steel that contains a higher percentage of chromium and nickel than stainless steel 309, contributing to its improved corrosion resistance properties.

Regarding general corrosion resistance, stainless steel 309S performs well in various corrosive environments, including oxidizing and reducing conditions. Its high chromium content forms a protective passive oxide layer on the surface, effectively preventing corrosion and providing excellent resistance against many corrosive agents.

Specification Of 309 Stainless Steel Large Diameter Pipe

Large Diameter Pipe Standard ASTM A312 ASME SA312 / ASTM A358 ASME SA358
Large Diameter Pipe Dimension ANSI/ASME B36.19M, ANSI/ASME B36.10M
Large Diameter Pipe Sizes 16" NB - 204" NB
Large Diameter Pipe Outside Diameter 16" - 120" for spiralweld pipe
36" - 204" for rolled & welded pipe
Steel Large Diameter Pipe Manufacturing Process Seamless / Welded / ERW / Fabricated / EFW / 100% X Ray Welded
Large Diameter Pipe Wall thickness 0.25" - 1" for spiralweld pipe
0.375" - 2.25" for rolled & welded pipe
Stainless Steel Large Diameter Pipe Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Large Diameter Pipe Ends Half Hard, Soft, Hard, Quarter Hard, Spring Hard
Delivery Condition Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Outside Finish 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Value Added Services Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

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Types Of Stainless Steel 309 Large Diameter Pipes

Stainless Steel 309 Large Diameter Round Pipe

309 SS Large Diameter Round Pipe

SS 309 Large Diameter Round Pipe, Stainless Steel 309S Large Diameter Round Pipe Supplier, Stainless Steel 309 Large Diameter Round Pipe Stockist.

Stainless Steel 309 Spiral Welded Large Diameter Pipe

309 SS Spiral Welded Large Diameter Pipe

SS 309 Spiral Welded Large Diameter Pipe, Stainless Steel 309 Spiral Welded Large Diameter Pipe Supplier, Stainless Steel 309S Spiral Welded Large Diameter Pipe Stockist.

Stainless Steel 309 Rolled & Welded Large Diameter Pipe

309 SS Rolled & Welded Large Diameter Pipe

SS 309 Rolled & Welded Large Diameter Pipe, Stainless Steel 309S Rolled & Welded Large Diameter Pipe Supplier, Stainless Steel 309 Rolled & Welded Large Diameter Pipe Stockist.

Stainless Steel 309 Coated Large Diameter Pipe

309 SS Coated Large Diameter Pipe

SS 309S Fusion Bonded Epoxy (FBE) Coated Large Diameter Pipe, Stainless Steel 309 Abrasion Resistant Overcoat (ARO) Coated Large Diameter Pipe Supplier, Stainless Steel 309S Coated Large Diameter Pipe Stockist.

Widest Range of 309-309S Stainless Steel Large Diameter Pipes in Mumbai, India.

  • Widest RangeSpiral Welded Stainless Steel 309 Large Diameter Pipe
  • Widest Range309 SS Electric Fusion Welding Large Diameter Pipe
  • Widest RangeSS 309 Submerged Arc Welding (LSAW) Large Diameter Pipe
  • Widest RangeFusion Bonded Epoxy (FBE) SS 309 Large Diameter Pipe
  • Widest Range309 Stainless Steel Laser Welded Large Diameter Pipe
  • Widest RangeASTM A312 Stainless Steel 309 Large Diameter Pipe
  • Widest Range1422 mm (56”) Stainless Steel 309 Large Diameter Pipe
  • Widest Range610 mm (24”) Stainless Steel 309 Large Diameter Pipe
  • Widest Range309 Stainless Steel Galvanized Large Diameter Pipe
  • Widest RangeASME SA312 Stainless Steel 309S Large Diameter Pipe
  • Widest Range1219 mm (48”) Stainless Steel 309 Large Diameter Pipe
  • Widest Range910 mm (36”) Stainless Steel 309 Large Diameter Pipe
  • Widest Range309 Stainless Steel EFW Pipe
  • Widest RangeASTM A312 Stainless Steel 309S Large Diameter Pipe
  • Widest RangeAbrasion Resistant Overcoat (ARO) SS 309 Large Diameter Pipe
  • Widest RangeASME SA312 Stainless Steel 309 Large Diameter Pipe

Check Stainless Steel 309/309S Pipes Types In Detail

309 Stainless Steel Large Diameter Pipes Equivalent Grades

STANDARD UNS WERKSTOFF NR. AFNOR EN JIS BS GOST
SS 309 S30900 1.4828
SS 309S S30908 1.4833

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309 Stainless Steel Large Diameter Pipes Price

Product Price
SS 1.4828 Large Diameter Pipe Price List US $ 21 - 34 / kg
Custom Size SS 1.4833 Large Diameter Pipes Price US $ 1401 - 15200 / Ton
S30900 Stainless Steel Large Diameter Pipe Price US $ 1929 - 13400 / Ton
Austenitic Stainless Steel 309 Large Diameter Pipe Price Per KG $1010.00 - $2450.00/ Ton
309 SS Large Diameter Pipe Price List $951 - 1640/ Ton
Schedule 10 Stainless Steel 309S Large Diameter Pipes Price $1,022.00 - $5,959.00/ Ton
Stainless Steel S30908 Large Diameter Pipe Price US $ 1210 - 8330 / Ton
Polished Stainless Steel 309S Large Diameter Pipes Price $1029.00 - $6,540.00/ Ton
ASTM A312 Plain End Stainless Steel 309 Large Diameter Pipe Price List $1300.00 - $8,640.00/ Ton

For Quatation & Questions Related To Stainless Steel 309 Large Diameter Pipes

Avoid those problems that occur with low-quality stainless steel 309 Large Diameter pipes by getting high-quality stainless steel 309 Large Diameter pipes at competitive prices from us. Give us a call or send us an email to discuss how we can help you build your business. Working with such an esteemed client as you will make us happy.

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Stainless Steel 309 Large Diameter Pipe Manufacturing Process

Forming

According to the name, the plate is bent into a "U" and then a "O" in succession. The lowering of the die starts the process of forming in the U-ing press. The side rollers move the crimped plate in the direction of the die. The O-ing press is then used to mould the U-shaped plate into a slit pipe. Working at up to 60,000 tonnes of pressure, this is precision work.

Two lower rolls and one higher roll bend the plate to the appropriate radius during the three-roll bending procedure. Different top roll diameters are employed, depending on the steel grade and necessary pipe diameter. Afterward, the crimping machine rounds the created edges.

Tack welding of the slit pipe

The open edges of the slit pipe are tacking welded together in shielding gas prior to submerged-arc welding. Frames (roller cages) are used for this, which precisely position the edges and prevent misalignment. Additionally, the continuous tack weld keeps the weld pool in place for subsequent submerged arc welding.

Pipe identification

material tracking throughout the entire production process. For identification each pipe is marked with a pipe production number. Additionally a line, marking the centre of the pipe, is the reference for late non-destructive testing of the weld seam.

Inside and outside welding

Two passes are used to attach the longitudinal edges. At the pipe ends, run-on and run-off tabs are positioned to stabilise the electric arc at the start and end of the welding process.

Outside welding is done after the inside welding has been completed. The tack weld pass has fused entirely. Up to five welding wires can be positioned in a line behind one another during submerged-arc multi-wire welding. Welding wire and flux, amperage, voltage, welding speed, wire spacing, wire diameter, the angle of the wires in relation to one another and the weld groove, as well as flux height and width, all affect how consistently good a weld is. A welding data monitoring system enables online manufacturing process monitoring.

X-ray weld inspection / Filmless radiography

Each seam is first visually inspected from the inside out. In addition to X-ray and manual ultrasonic testing, our internal quality checks also involve ultrasonic inspection of the whole seam.

When compared to traditional film-based approaches, the use of automatic picture evaluation software and image processing capabilities considerably increases the reliability of inspection and detection. Any ultrasonic signals are automatically and precisely verified. We take pride in being the only manufacturer of large-diameter pipes to use digital technology for all radiography examinations. We streamline the inspection procedure, record the findings, and keep track of any deviations for later follow-up.

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Chemical Composition Of Stainless Steel 309S Large Diameter Pipe

Grade Fe Cr Ni Mn Si C P S
SS 309 60% 23% 14% 2% 1% 0.20% 0.045% 0.030%
Grade NI C MN P S SI CR MO
SS 309S 12.0 - 15.0 0.08 max 2.0 max 0.045 max 0.030 max 1.0 max 22.0 - 24.0 0.75 max

Mechanical Properties Of 309 Stainless Steel Large Diameter Piping

Yield Strength
0.2% Offset0
Ultimate Tensile
Strength
Elongation
in 2 in.
Hardness
psi (min.) (MPa) psi (min.) (MPa) % (min.) (max.)
45,000 310 85,000 586 50 202 (HBN)

Testing & Inspection of 309 Stainless Steel Large Diameter Pipes

Testing (Destructive, Non Destructive)

Pitting Resistance Test Eddy Current Testing
Hardness Test Ultra Sonic Test (UT)
Flaring Test Bend Test
Intergranular Corrosion (IGC) Test Impact Test
Chemical Analysis – Spectro Analysis Hydrogen-Induced Cracking (HIC) Test
Mechanical Testing Such as Tensile, Elongation, Reduction of Area Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
Positive Material Identification – PMI Testing Hydrostatic Test
Micro Test Radiography Test
Macro Test Dye Penetrant Test (DP Test)
Flattening Test

Stainless Steel 309S Large Diameter Pipe Sizes in MM

Designation of Diameter O/D Nominal Wall Thickness
DIA SCH.5S SCH.5 SCH 10S SCH.10 SCH.20S SCH.30 SCH.40S SCH.40 SCH 60
(A) (B) Meter MM Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr Wall Thk Weight Kg/Mtr
6 1/8 10.3 1 0.23 1.2 0.27 1.5 0.33 1.73 0.37
8 1/4 13.7 1.2 0.37 1.65 0.49 2 0.58 2.24 0.64
10 3/8 17.2 1.2 0.47 1.65 0.63 2 0.74 2.31 0.87
15 1/2 21.3 1.65 0.01 1.65 0.81 2.11 1.02 2.11 1.02 2.5 1.15 2.77 1.29
20 3/4 26.7 1.65 1.03 1.65 1.03 2.11 1.3 2.11 1.3 2.5 1.49 2.87 1.71
25 1 33.4 1.65 1.31 1.65 1.31 2.77 2.13 2.77 2.13 3 2.24 3.38 2.54
32 11/4 24.2 1.65 1.67 1.65 1.67 2.77 2.73 2.77 2.73 3 2.9 3.56 3.44
40 11/2 48.3 1.65 1.93 1.65 1.93 2.77 3.16 2.77 3.16 3 3.35 3.68 4.11
50 2 60.3 1.65 1.93 1.65 2.42 2.77 3.99 2.77 3.99 3.5 4.9 3.91 5.52
65 21/2 73 2.11 3.75 2.11 3.75 3.05 5.34 3.05 5.34 3.5 6 5.16 8.77
80 3 88.9 2.11 4.59 2.11 4.59 3.05 6.56 3.05 6.56 4 8.37 5.49 11.47
90 31/2 101.6 2.11 5.25 2.11 5.25 3.05 7.53 3.05 7.53 4 9.62 5.74 13.78
100 4 114.3 2.11 5.93 2.11 5.93 3.05 8.5 3.05 8.5 4.5 12.18 6.02 6.32
125 5 141.3 2.77 9.61 2.77 9.61 3.4 11.74 3.43 11.74 5 16.8 6.55 2210
150 6 168.3 2.77 11.47 2.77 11.47 3.4 14.04 3.43 14.04 5.5 22.08 7.11 28.69
200 8 219.1 2.77 15 2.77 15 3.76 20.77 3.76 20.27 6.35 33.82 7.04 37.38 8.18 43.2 10.81 53.9
250 10 273.1 3.4 22.95 3.4 22.95 4.19 28.2 4.19 28.2 6.35 42.41 7.8 51.81 9.27 61.22 12.2 82.8
300 12 323.9 3.96 31.72 4.19 33.6 4.57 36.54 4.57 36.54 6.35 50.48 8.38 66.2 9.53 75.01 10.31 80.94 14.27 110.62
350 14 355.6 3.96 34.86 4.78 41.99 6.35 55.53 7.92 68.95 9.53 82.58 9.53 82.58 11.13 96 15.06 128.42
400 16 406.4 4.19 42.2 4.78 48.07 6.35 63.61 7.92 79.03 9.53 94.7 9.53 94.7 12.7 125.2 16.66 162.59
450 18 457.2 4.19 47.46 4.78 54.15 6.35 71.69 7.92 89.1 11.13 124.32 9.53 106.83 14.27 158.27 19.05 209
500 2C 508 4.78 60.23 5.54 69.7 6.35 79.76 9.53 118.93 12.7 157.51 9.53 118.9 15.06 185.89 2062 251.65
550 22 558.8 4.78 65.95 5.54 76.75 6.35 87.84 9.53 131.07 12.7 173.66 9.53 131.07 15.88 216.04 22.23 298.55
600 24 609.6 5.54 83.8 6.35 95.92 6.35 95.92 9.53 143.2 14.27 212.72 9.53 143.2 17.45 258.74 24.59 360.21
650 26 660.4 7.92 129.4 12.7 205.97 9.53 155.32
700 28 711.2 7.92 139.47 12.7 222.13 15.88 276.48 9.53 167.44
750 3C 762 6.35 120.15 7.92 149.55 7.92 149.55 12.7 238.28 15.88 296.68 9.53 179.56
800 32 812.8 7.92 159.62 12.7 254.44 15.88 316.88 9.53 191.69 17.48 348.11
850 34 863.6 7.92 169.64 12.7 270.5 15.88 336.96 9.53 203.74 17.48 370.22
900 36 914.4 7.92 179.77 12.7 286.75 15.88 357.28 9.53 215.93 19.05 427.09

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Supply Cities Of Stainless Steel 309 And 309S Large Diameter Pipes

The cities listed here are where we have supplied our grade 309S stainless steel large diameter pipes in bulk or small orders. Cities from metropolitan to rural areas we can provide SS 309 large diameter pipes to satisfy the needs of our clients.

Pimpri-Chinchwad, Houston, London, Atyrau, Mumbai, Hong Kong, Chennai, Thiruvananthapuram, Edmonton, New Delhi, Al Jubail, Caracas, Baroda, Mumbai, Riyadh, Mexico City, Ahvaz, Granada, Lahore, Santiago, Chiyoda, Petaling Jaya, Seoul, Ho Chi Minh City, Karachi, Abu Dhabi, Jakarta, Algiers, Coimbatore, Muscat, Cairo, Rajkot, Bengaluru, Pune, Geoje-si, Ernakulam, Ranchi, Jaipur, Kuwait City, Gurgaon, Sydney, Secunderabad, Vadodara, Sharjah, Dammam, Colombo, Nagpur, Singapore, Bhopal, New York, Thane, Vung Tau, Kolkata, Dubai, Doha, Milan, Lagos, Jamshedpur, Courbevoie, Navi Mumbai, Port-of-Spain, Ludhiana, Haryana, Al Khobar, Brisbane, Kanpur, Calgary, Howrah, Manama, Aberdeen, Nashik, Moscow, Jeddah, Hanoi, Noida, Melbourne, Bangkok, Kuala Lumpur, Istanbul, Hyderabad, Ahmedabad, Dallas, Los Angeles, Faridabad, Surat, Chandigarh, Rio de Janeiro, Ulsan, Bogota, Indore, Visakhapatnam, Perth, Toronto, Busan, Montreal, La Victoria, Madrid, Tehran, Ankara, Gimhae-si.

Documents Provided at the time of Domestic Sales or Export of 309 Stainless Steel Large Diameter Pipes

Packing List Quality Assurance Plan (QAP)
Certificate of Origin Raw Material Test Reports
Fumigation Certificates NABL approved Laboratory Test Reports
ROHS Certificate Certificate of Compliance/Conformity
Letter of Guarantee Material Test Certificates
Commercial Invoice Heat Treatment Charts

Application Industries We Supply Stainless Steel 309 Large Diameter Pipes

309 SS Large Diameter Pipes For Health care, 309 Stainless Steel Large Diameter Pipes For Pulp and Paper Industry, 309S Stainless Steel Large Diameter Pipes For Rail Transport, Stainless Steel 1.4828 Large Diameter Pipes For Textile Industry, UNS S30908 Large Diameter Pipes For Engineering, 309 Stainless Steel Large Diameter Pipes For Manufacturing, 309S Stainless Steel Large Diameter Pipes For Production, Stainless Steel 309 Large Diameter Pipes For Waste, UNS S30900 Large Diameter Pipes For Mining, 309 Stainless Steel Large Diameter Pipes For Energy, Stainless Steel 309 Large Diameter Pipes For Technology, 309 Stainless Steel Large Diameter Pipes For Food Industry, 309S Stainless Steel Large Diameter Pipes For Pharmaceutical Industry, 309 Stainless Steel Large Diameter Pipes For Transport, Stainless Steel 309S Large Diameter Pipes For Real Estate, 309 Stainless Steel Large Diameter Pipes For Agriculture, 309 Stainless Steel Large Diameter Pipes For Factory, 309S Stainless Steel Large Diameter Pipes For Tertiary Sector, Stainless Steel 1.4833 Large Diameter Pipes For Construction, 309 Stainless Steel Large Diameter Pipes For Chemical Industry, 309 Stainless Steel Large Diameter Pipes For Electronics.

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