Stainless Steel 321 Welded Pipe

Neeka Tubes is a trusted manufacturer and supplier of Stainless Steel 321 Welded Pipe. We provide high-quality pipes with excellent strength and durability. Our products serve various industries with reliable performance. Stainless Steel 321 is stabilized austenitic steel, ideal for high temperatures. It offers great corrosion and oxidation resistance for long-lasting use. These pipes are easy to fabricate and maintain, ensuring excellent reliability.

Stainless Steel 321 Welded Pipe has a composition of carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel and titanium, giving it high strength and durability. With at least 17% chromium and 9% nickel, it provides excellent resistance to oxidation. The pipe has a tensile strength of 515 MPa and a yield strength of 205 MPa. It is available in sizes from 1″ NB to 16″ NB, with wall thickness options ranging from Schedule 10 to Schedule 160 and lengths between 1 meter and 12.5 meters.

SS 321 Welded Pipes, SS 321 Welded Pipe Price, SS 321 Welded Pipe Chart, SS 321 Welded Pipe Sizes, SS 321 Welded Pipe Dimensions, Stainless Steel 321 Welded Pipes, TP321 Welded Pipes, Stainless Steel 321 Welded Pipe Suppliers, 321 Stainless Steel Welded Pipes.

Benefits of Stainless Steel 321 Welded Pipe

Benefits of Stainless Steel 321 Welded Pipe

  • High-Temperature Strength – Maintains strength and stability up to 900Β°C, ensuring long-lasting performance in extreme conditions.
  • Good Weldability – It is easy to weld using standard methods. This saves time and lowers manufacturing costs.
  • Superior Creep Resistance – Handles long-term heat exposure without bending or breaking, ensuring a longer lifespan.
  • Strong and Durable – It has high strength and toughness, ensuring reliability for heavy-duty applications.
  • Low Maintenance – Resists rust, scaling and wear, keeping maintenance needs low and cost-effective.

Stainless Steel 321 Welded Pipe is ideal for high-temperature applications due to its excellent resistance to oxidation and corrosion. It is widely used in industries such as chemical, aerospace and petrochemical. The ASTM A312 Stainless Steel Welded Pipes can withstand extreme heat, making it perfect for heat exchangers, reactors and furnace parts. It is also commonly used in exhaust systems. Additionally, its superior resistance to high-temperature corrosion makes it a reliable choice for the food processing and pharmaceutical industries.

Most Common Types of Stainless Steel 321 Welded Pipe

High-quality welded stainless steel 304 tubing.

SS 321 Welded Pipe

Stainless steel 304 round bars for structural and machining applications.

321 SS Round Pipe

square

SS 321 Welded Square Pipe

Polished stainless steel pipe with a smooth finish for decorative and industrial use.

SS 321 Polished Pipe

Stainless steel Schedule 40 pipe with thick walls for high-pressure systems.

SS 321 Schedule 40 Seamless Pipe

Thin-wall stainless steel pipe for lightweight applications in various industries.

321 Stainless Steel Thin Wall Pipe

Custom stainless steel pipes designed for specific industrial requirements.

Stainless Steel 321 Custom Pipe

Cold-drawn seamless stainless steel pipe for precision engineering applications.

Stainless Steel 321 Cold Drawn Seamless Pipe

Stainless Steel 321 Welded Pipe Specifications

SpecificationDetails
GradeSS 321
StandardASTM A312, ASME SA312, ASTM A213, ASME SA213, ASTM A249, ASME SA249, ASTM A269, ASME SA269, ASTM A358
MaterialStainless Steel 321
Outside Diameter (OD)6.35 mm to 914.4 mm (1/8” NB to 36” NB)
Wall Thickness0.5 mm to 50 mm
LengthSingle Random, Double Random, and Custom Cut Lengths
SchedulesSCH 5, SCH 10, SCH 20, SCH 30, SCH 40, SCH 80, SCH 160, SCH XXS
TypeWelded (ERW, EFW)
FormRound, Square, Rectangular, Coil, Hydraulic
EndsPlain End, Beveled End, Threaded
Finish2B, BA, No. 1, No. 4, Mirror, Polished, etc.
TemperAnnealed or Pickled
ApplicationChemical processing, Heat exchangers, Petroleum refineries, Food & beverage, Pharmaceutical industries
SurfaceSmooth, resistant to corrosion and oxidation
SpecificationMeets or exceeds ASTM A312, ASTM A213, ASTM A249, ASTM A269
Looking For Fastest Delivery of Stainless Steel 321 Welded Pipe in Mumbai? Find Your Sizes and Thickness of SS 321 Welded Pipes in Our Ready Stock.
Element Content (%)
Carbon (C) 0.08 max
Manganese (Mn) 2.00 max
Silicon (Si) 1.00 max
Phosphorus (P) 0.045 max
Sulfur (S) 0.030 max
Chromium (Cr) 17.00 – 19.00
Nickel (Ni) 9.00 – 12.00
Titanium (Ti) 5 Γ— (C + N) – 0.70 max
Property Value
Tensile Strength 515 MPa (min)
Yield Strength (0.2% Proof) 205 MPa (min)
Elongation 40% (in 50mm)
Hardness Rockwell B (HR B) max: 95, Brinell (HB) max: 217
Grade Equivalent Grades
SS 321 AISI 321, UNS S32100, SAE 321
SS 321H AISI 321H, UNS S32109
EN 1.4541 Equivalent to SS 321/321H
DIN X6CrNiTi18-10 Equivalent to SS 321/321H
JIS SUS 321 Equivalent to SS 321

Contact Neeka tubes today for a best offer & competitive quotation Of Stainless Steel 321 Welded Pipe
Please Call on +91 7700067892 or drop an E-Mail : sales@neekatubes.net

UNS S31000 SS 321 Welded Pipe Dimnension

Size (NB) Outside Diameter (OD) mm Wall Thickness (WT) mm Schedule Length
1/8″ NB 6.35 mm 0.91 mm Schedule 10, Schedule 40 Up to 6 meters
1/4″ NB 9.52 mm 1.24 mm Schedule 10, Schedule 40 Up to 6 meters
1/2″ NB 15.88 mm 1.65 mm Schedule 40, Schedule 80 Up to 6 meters
3/4″ NB 19.05 mm 1.91 mm Schedule 40, Schedule 80 Up to 6 meters
1″ NB 25.4 mm 2.11 mm Schedule 40, Schedule 80 Up to 6 meters
2″ NB 50.8 mm 2.77 mm Schedule 40, Schedule 80 Up to 6 meters
4″ NB 101.6 mm 4.5 mm Schedule 40, Schedule 80 Up to 6 meters
6″ NB 152.4 mm 5.6 mm Schedule 40, Schedule 80 Up to 6 meters
8″ NB 203.2 mm 6.35 mm Schedule 40, Schedule 80 Up to 6 meters
10″ NB 254 mm 7.1 mm Schedule 40, Schedule 80 Up to 6 meters
12″ NB 304.8 mm 7.9 mm Schedule 40, Schedule 80 Up to 6 meters
14″ NB 355.6 mm 8.2 mm Schedule 40, Schedule 80 Up to 6 meters
16″ NB 406.4 mm 9.5 mm Schedule 40, Schedule 80 Up to 6 meters
18″ NB 457.2 mm 10.4 mm Schedule 40, Schedule 80 Up to 6 meters
20″ NB 508 mm 11.1 mm Schedule 40, Schedule 80 Up to 6 meters
24″ NB 609.6 mm 12.7 mm Schedule 40, Schedule 80 Up to 6 meters

Thickness Chart Of SS 321 in MM

321 Stainless Steel Pipe OD mm Pipe WT mm in. Sch Kg/m
13.72 1.65 1/4 10S 0.50
13.72 2.24 1/4 40S 0.64
13.72 3.02 1/4 80S 0.81
17.15 1.65 3/8 10S 0.64
17.15 2.31 3/8 40S 0.86
17.15 3.20 3/8 80S 1.12
21.34 2.11 1/2 10S 1.02
21.34 2.77 1/2 40S 1.29
21.34 3.73 1/2 80S 1.65
26.67 2.11 3/4 10S 1.30
26.67 2.87 3/4 40S 1.71
26.67 3.91 3/4 80S 2.23
33.40 2.77 1 10S 2.13
33.40 3.38 1 40S 2.54
33.40 4.55 1 80S 3.29
33.40 6.352) 1 160 4.30
42.16 2.77 1ΒΌ 10S 2.73
42.16 3.56 1ΒΌ 40S 3.44
42.16 4.85 1ΒΌ 80S 4.53
42.16 6.352) 1ΒΌ 160 5.69
48.26 2.77 1Β½ 10S 3.16
48.26 3.68 1Β½ 40S 4.11
48.26 5.08 1Β½ 80S 5.49
60.33 2.77 2 10S 3.99
60.33 3.91 2 40S 5.52
60.33 5.54 2 80S 7.60
60.33 8.742) 2 160 11.29
73.03 3.05 2Β½ 10S 5.35
73.03 5.16 2Β½ 40S 8.77
73.03 7.01 2Β½ 80S 11.59
88.90 3.05 3 10S 6.56
88.90 5.49 3 40S 11.47
88.90 7.62 3 80S 15.51
88.90 11.132) 3 160 21.67
101.60 3.05 3Β½ 10S 7.53
101.60 5.74 3Β½ 40S 13.78
101.60 8.08 3Β½ 80S 18.92
114.30 3.05 4 10S 8.50
114.30 6.02 4 40S 16.32
114.30 8.56 4 80S 22.67
114.30 13.492) 4 160 34.05
141.30 6.55 5 40S 22.10
141.30 9.53 5 80S 31.44
141.30 15.882) 5 160 49.87
168.28 3.4 6 10S 14.04
168.28 7.11 6 40S 28.69
168.28 10.97 6 80S 43.21
168.28 14.27 6 120 54.75
168.28 18.262) 6 160 68.59
219.08 8.18 8 40S 43.20
219.08 12.7 8 80S 65.63
219.08 18.23 8 120 91.30
219.08 23.012) 8 160 112.97

SS 321 Welded Pipe Packing & Marking

Packaging and Delivery

Stainless Steel 321 Welded Pipes are packaged in various options, including loose, bundle, wooden pallets, wooden boxes, plastic cloth wraps, plastic end caps and beveled protectors.

The packaging is clearly marked with important details such as product code, material grade, size, weight, quantity, heat number, country of origin, handling instructions and customer information, making it easy to identify, handle and track the pipes throughout the delivery process.

Quality Checks & Certifications

SS 321 Welded Pipes undergoes rigorous quality tests, including product analysis, tension tests and hardness tests. Certificates like Manufacturer Test Certificate (EN10204 3.1, 3.2) and Laboratory Test Certificate from NABL-approved labs ensure compliance. 321 SS Welded Pipes undergo rigorous quality tests, including product analysis, tension tests and hardness tests. Certificates like Manufacturer Test Certificate (EN10204 3.1, 3.2) and Laboratory Test Certificate from NABL-approved labs ensure compliance. The pipes are also inspected under third-party agencies like SGS, TUV and Lloyd’s. Additional tests include NACE 0175, Weld Decay and Intergranular Corrosion tests.

Searching for ready stock of Stainless Steel 321 Welded Pipe in Mumbai?

Industrial Application of SS 321 Welded Pipe