Seamless Stainless Steel Pipe

Name: Seamless Stainless Steel Pipe
Brand: JAYANT IMPEX
Price: 300.0 INR
Availability: InStock

300.0 INR/Piece

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Product Details:

Tensile Strength 520 MPa min (Grade 304)
Temperature Range -196C to +800C
Flexibility Rigid
Tolerance 0.05 mm
Coating Type No Additional Coating/Custom on Request
Connection Type Plain End, Beveled End, Threaded
Thread Type NPT/BSPT (if required)
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Seamless Stainless Steel Pipe Price And Quantity

Price 300.0 INR/Piece
Minimum Order Quantity 1 Piece

Seamless Stainless Steel Pipe Product Specifications

Thickness 1 mm - 12 mm
Standard ASTM A312 / A213 / A269 / A790
Rated Pressure As per piping class/specification
Yield Strength 205 MPa min (Grade 304)
Diameter Customized as per requirement
Connection Welded or Plain End
Thread Type NPT/BSPT (if required)
Sealing Type Metal to Metal
Length Up to 12 meters
Coating Type No Additional Coating/Custom on Request
Connection Type Plain End, Beveled End, Threaded
Surface Treatment Pickled, Annealed
Tolerance 0.05 mm
Product Type Seamless Stainless Steel Pipe
Usage Industrial Applications
Application Oil & Gas, Chemical, Petrochemical, Power Plant, Construction, Automotive
Color Silver/Grey Metallic
Material Stainless Steel
Flexibility Rigid
Outer Diameter 6 mm - 610 mm
Temperature Range -196C to +800C
Shape Round
Section Shape Circular
Tensile Strength 520 MPa min (Grade 304)
Material Grade 304 / 304L / 316 / 316L / 321 / 347 / 310S, etc.

End Protection Plastic Caps on Ends
Packing Wooden Case/Plastic Bags/Steel Racks
Corrosion Resistance Excellent, suitable for harsh environments
Heat Number Marking Available
Hardness HRB 90 (Grade 304)
Density 7.98 g/cm3
Finish Type Mill Finish, Polished (180-600 grit optional)
Availability Ex-stock or made to order
Manufacturing Technique Cold Drawn/Hot Rolled

Product Description

Manufacturing Process: Hot Finished vs. Cold Drawn

Seamless pipes are primarily produced via two main finishing routes depending on required tolerances and wall dimensions:

Hot Finished (Hot Pierced & Rolled):
- Process: A round solid billet is heated to ~1200C, pierced down the center with a mandrel, and elongated through cross-rolling mills.
- Characteristics: Heavier wall thickness, coarser surface finish, larger dimensional tolerances. Used in standard structural, high-temp steam, and general process lines.
Cold Drawn / Cold Pilgered:
- Process: A hot-finished hollow tube is annealed, pickled, and pulled cold through a die over a mandrel (or cold-pilgered over a tapered die).
- Characteristics: High dimensional accuracy, tight wall thickness tolerances, superior surface smoothness ( $R_a$ ), and improved mechanical strength via work hardening before final solution annealing.

Common Material Grades & Primary Standards

Seamless stainless steel pipes cover austenitic, ferritic, martensitic, and duplex alloy families:

Material Family	Common Grades	Key ASTM/ASME Standards	Primary Application / Characteristics
Austenitic	304/304L (UNS S30403) 316/316L (UNS S31603) 321 (UNS S32100) 347 (UNS S34700)	ASTM A312 / ASME SA312 ASTM A213 (Boiler/Superheater) ASTM A269 (General Tubing)	General chemical processing, pharma, oil & gas, high-temp steam service (321/347 Ti/Nb stabilized against intergranular corrosion).
Duplex & Super Duplex	2205 (UNS S31803/S32205) 2507 (UNS S32750)	ASTM A790 / ASME SA790	Off-shore topsides, sour gas lines, seawater cooling systems, high-pressure chloride environments.
High-Temp / Nickel-Austenitic	310S (UNS S31008) 904L (UNS N08904)	ASTM A312 / ASTM B677	Heat treatment furnaces, high-concentration sulfuric acid, flue gas scrubbers.
Ferritic / Martensitic	410 (UNS S41000) 430 (UNS S43000)	ASTM A268 / ASME SA268	Automotive exhaust, mild corrosive media, abrasive slurry or high-wear applications requiring heat treatability.

Seamless vs. Welded (EFW / ERW): Key Trade-Offs

Feature	Seamless (ASTM A312 TP316L)	Welded (ASTM A312 TP316L Welded)
Pressure Rating	Higher working pressure allowance (Joint Efficiency factor $E = 1.0$ ).	Pressure rating adjusted by weld joint efficiency ( $E = 0.85$ unless 100% radiographed).
Corrosion Uniformity	Uniform grain structure around full circumference; no heat-affected zone (HAZ) weld decay risks.	Potential risk of preferential attack along weld seam or HAZ if not properly solution annealed.
Dimensional Limits	Wall thickness uniformity depends on piercing quality; higher cost for extra-large diameters (>24" OD).	Excellent wall thickness uniformity; readily available in very large outer diameters (OD).
Cost	20%40% higher manufacturing cost due to processing steps and low yield relative to billet mass.	More economical for standard pressure/utility services.

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