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Carbon Steel Pipes & Stainless Steel Seamless Pipes Manufacturers - Seamless Pipes Manufacturers! Call Us +918928722715 | Email Us - sales@metallicametals.com

SS 321/321H Pipes & Tubes for Furnaces

///SS 321/321H Furnace Pipes & Tubes

SS 321/321H Furnace Pipes & Tubes

520.00

Our general average selling price for stainless steel 321/321H furnace pipes and tubes is Rs. 520/kg. However, bigger sizes (above 4″) and small size (below 11/2) are sold at slight premium, due to higher cost of production. In any case, at Metallica, we guarantee you lowest prices from our stock of over 300 tons in stainless steel 321/321H furnace tubes.

  • If you are interested in purchasing high quality ss 321/321H pipes used for making heating furnace, please contact us now for prices and product details. We guarantee lowest prices for stainless steel 321/321H pipes in India. Email Us on sales@metallicametals.com | Call Us On +918928722715
  • Available on sale high quality stainless steel 321/321H pipes and tubes as per ASTM A312, ASTM A213, ASTM A249, ASTM A358 and ASTM A269 – Size Range of 1/8” to 24” (10.3mm to 610mm)

One of the largest manufacturer and supplier of SS 321/321H high temperature heating furnace pipes in India. SS 321/321H pipes are stocked and delivered to our customers in annealed and pickled condition in size range of 6mm OD upto 24″ OD in thickness upto 30mm. AISI 321/321H stainless steel pipes are stocked in 5.5 to 6.5 MTR  or custom lengths.

Grade 321/321H
Type Seamless
Size 6mm OD to 600 OD
Thickness 1mm to 20mm
Specification ASTM A213, ASTM A312
Application Heating Furnace
Price (INR/Kg) 520 to 800
Delivery Immediate

Description

321/321H Stainless Steel Pipes for Heating Furnaces! Low Prices

A furnace is a device used for high-temperature heating. It is a container that is heated to a very high temperature, so that substances that are put inside it, such as metal, will melt or burn.

The name derives from Latin word fornax, which means oven. The heat energy to fuel a furnace may be supplied directly by fuel combustion, by electricity such as the electric arc furnace, or through induction heating in induction furnaces.

In metallurgy, several specialized furnaces are used. These include:

Furnaces used in smelters, including:

  • The blast furnace, used to reduce iron ore to pig iron

Steelmaking furnaces, including:

  • Puddling furnace
  • Reverberatory furnace
  • Bessemer converter
  • Open hearth furnace
  • Basic oxygen furnace
  • Electric arc furnace
  • Electric induction furnace

Furnaces used to remelt metal in foundries.

Furnaces used to reheat and heat treat metal for use in:

  • Rolling mills, including tinplate works and slitting mills.
  • Forges

Source: Wikipedia.org

Why Buy AISI 321/321H, 1.4878/1.4541, UNS S32100/S32109 Seamless Pipes from Metallica Metals?

  • Large Scale Enterprise – Metallica is biggest stock holding, manufacturing and processing company of SS 321/321H seamless pipes in India. Our large volume production, sales and purchase enables us to offer our products at the most competitive prices in the industry.
  • Testing of Stainless Steel 321/321H Seamless Pipes– All SS 321/321H seamless pipes are subjected to hydrostatic test, eddy current test, chemical and mechanical tests during the various stages of production.
  • Marking & Packing of Stainless Steel 321/321H Seamless Pipes – Marking on all pipes is as per the predefined rules in the specification.
  • Test Certificates & Inspection of SS 321/321H Seamless Pipes – All our pipes are supplied with Mill test Reports, as per EN 10204 3.1. We can also allow third party inspection of all our products before delivery.
  • We have own QC team to control the quality to meet particular standard strictly
  • Short Lead Times – We can offer AISI 321/321H, 1.4878/1.4541, UNS S32100/S32109 seamless pipes with shortest delivery time.
  • We can produce either standard or non-standard of the stainless steel 321/321H seamless pipes.

What is 321/321H Stainless Steel?

Stainless Steel 321 is a basic austenitic 18/8 steel (Grade 304) blend of chromium and nickel is stabilised by Titanium (321) addition. SS 321 is used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Stainless Steel 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling, embrittlement and phase stability with resistance to subsequent aqueous corrosion. It is protected from temperatures ranging from 800 to 1500° F. The metal displays high strength and resistance to various forms of corrosions, including that from aqueous environments. Type 321 finds application in heavy welding components, along with dynamic environments that are subject to changes. Beyond this, stainless steel 321 has excellent forming characteristics, does not require annealing after being welded, and displays toughness in a range of temperatures. The metal shows strength even when exposed to cryogenic temperatures. Additionally, it is often chosen over Type 304 for its increased resistance to creep and rupture. Both metals may be susceptible to stress corrosion cracking. It is used to manufacture high quality carbon structural steel seamless steel tubes for hot rolling and cold drawing (rolling) of superheated steam pipe, boiling water pipe and locomotive boiler superheated steam pipe, large smoke pipe, small smoke pipe and arch brick.

SS 321H is a modification of SS 321 with a higher carbon content, to provide improved high temperature strength. In addition, 321H is stabilized by an addition of niobium to resist intergranular corrosion. It is also able to withstand higher temperatures than type 321, due to its elevated carbon levels. While 321H displays the same welding and forming characteristics of type 321, the metal cannot be hardened by heat treatment. It is utilized in situations where type 321 cannot withstand the high temperatures, typically those exceeding 1000° F. Type 321H displays better resistance against creep than both 321 and 304 stainless steels. 321H also shows resistance against acid corrosion in a variety of environments. Lower temperatures provide better resistance, but the metal is able to withstand up to a 10% acid solution, that has been diluted, at elevated temperatures. However, the metal shows very little resistance against chlorine or sulfuric solutions at any given temperature. Given their similar composition and characteristics, it is possible for stainless steels 321 and 321H to become dually certified.

Manufacturing Range for Stainless Steel 321/321H, 1.4878/1.4541, UNS S32100/S32109 Seamless or Welded Stainless Steel Pipes

Product ASTM A312 TP321/TP321H , 1.4878/1.4541, UNS S32100/S32109 Stainless Steel Pipes
Specification ASTM A312 / A312M Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
Type Seamless & Welded
Size Range Size: 1/8” to 24” (10.3mm to 610mm) – Seamless
Size:1/8” to 36” (10.3mm to 914mm) – Welded
1/8” OD to 6” OD
Thickness 10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH
Wall Thickness: 1mm to 60mm
Length 6 Meter, Custom Lengths
Other Grades TP304, TP304L, TP304LN, TP316, TP316L, TP316LN, TP317, TP317/317L, TP321, TP347, TP310S
Test Certificates Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
ASTM Reference Standards
  • A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels.
  • A370 Test Methods and Definitions for Mechanical Testing of Steel Products.
  • A480 A480M Specification for general requirements for Flat-rolled stainless and Heat-Resisting steel plate, sheet, and strip.
  • A632 Specification for Seamless and welded austenitic stainless-steel tubing (small-diameter) for general service.
  • A1016 A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless-Steel Tubes.
  • E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
Testing Mechanical Testing Such as Tensile of Area, Hardness Test, Chemical Analysis – Spectro Analysis, Positive Material Identification – PMI Testing, Flattening Test, Micro and MacroTest, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test
Documents Commercial Invoice, Packing List, Certificate of Origin, Fumigation Certificates, Raw Material Test Reports, Material Traceability Records, Quality Assurance Plan (QAP), Heat Treatment Charts, Test Certificates certifying NACE MR0103, NACE MR0175, Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Guarantee Letter, NABL approved Laboratory Test Reports

Chemical Composition of ASTM A312 TP321/TP321H, 1.4878/1.4541, UNS S32100/S32109 Seamless or Welded Stainless Steel Pipes

ELEMENT 321 321H
NI 9.0 – 12.0 9.0 – 12.0
C 0.08 max 0.04 – 0.10
MN 2.0 max 2.0 max
P 0.045 max 0.045 max
S 0.030 max 0.030 max
SI 1.0 max 1.0 max
CR 17.0 – 19.0 17.0 – 19.0
TI 5(C+N) – 0.70 max 4(C+N) – 0.70
N 0.10 max 0.10 max

Physical Properties of ASTM A312 TP321/TP321H, 1.4878/1.4541, UNS S32100/S32109 Seamless or Welded Stainless Steel Pipes

DENSITY 7.92 g/cm 3 / 0.286 lb/in 3
MELTING POINT 1398 – 1446 (°C) / 2550 – 2635 (°F)
ANNEALED 1040 – 1100 (°C) / 1900 – 2000 (°F)
QUENCH Rapid Air/Water
Coefficient of Thermal Expansion (min/in)-°F at 68 – 212°F 9.2
at 68 – 1832°F 20.5
Thermal Conductivity BTU/hr-ft-°F at 200°F 9.3
Specific Heat BTU/lbm -°F at 32 – 212°F 0.12
Modules of Elasticity (annealed)2-psi in tension (E) 28 x 10 ^6

Mechanical Properties of ASTM A312 TP321/TP321H, 1.4878/1.4541, UNS S32100/S32109 Seamless or Welded Stainless Steel Pipes

Grade Tensile Strength Yield Strength 0.2% Elongation – Hardness
ksi (min.) Offset ksi (min.) % in 50 mm (min.) (Brinell) MAX
321 75 30 40 217

Other Grades Chemical Composition Comparision

Grade UNS Composition, % in Max.
Designation C Mn P S Si Cr Ni Mo N
TP304 S30400 0.08 2 0.045 0.03 1 18.0–20 8.0–11 . . . . . .
TP304L S30403 0.035 2 0.045 0.03 1 18.0–20 8.0–13 . . . . . .
TP304LN S30453 0.035 2 0.045 0.03 1 18.0–20 8.0–11 . . . 0.10-0.16
TP316 S31600 0.08 2 0.045 0.03 1 16.0–18 10.0–14 2.00–3 . . .
TP316L S31603 0.035 2 0.045 0.03 1 16.0–18 10.0–15 2.00–3 . . .
TP316LN S31653 0.035 2 0.045 0.03 1 16.0–18 10.0–13 . . . 0.10-0.16
TP317L S31700 0.035 2 0.045 0.03 1 18.0–20 11.0–15 3.0–4 . . .
TP321 S32100 0.08 2 0.045 0.03 1 17.0–19 9.0–12 . . . . . .
TP347 S34700 0.08 2 0.045 0.03 1 17.0–19 9.0–13 . . . . . .

Other Grades Mechanical Properties Comparision

Grade UNS Designation Tensile Strength, Min. Ksi [MPa] Yield Strength, Min. Ksi [MPa]
TP304 S30400 75 [515] 30 [205]
TP304L S30403 70 [485] 25 [170]
TP316 S31600 75 [515] 30 [205]
TP316L S31603 70 [485] 25 [170]
TP317L S31703 70 [485] 25 [170]
TP321 S32100 75 [515] 30 [205]
TP347 S34700 75 [515] 30 [205]
TP347H S34709 75 [515] 30 [205]

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