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Stainless Steel 201 / 201LN Pipes & Tubes Supplier & Stockist in India
Cost-effective structural frameworks require versatile austenitic grades that deliver reliable mechanical performance without the high cost of heavy nickel additions. Steel Emporium is a premier Stainless Steel 201 Pipes & Tubes Supplier in India, delivering high-strength, manganese-stabilized piping solutions tailored for commercial, decorative, and light-industrial builds.
To support immediate fabrication timelines, we operate as an established Stainless Steel 201 Pipes & Tubes Stockist in India, housing over 10,000 Tonnes of ready-to-ship inventory across seamless, ERW, and welded configurations. Backed by over 25+ years of industry expertise, every dispatch aligns with our accredited ISO 9001:2015 Quality Assurance System and comprehensive mill certification protocols.
Need high-tensile work-hardening capacity for heavy-duty structural railcars or high-stress architectural framing? Explore our specialized Stainless Steel 301, 301L & 301LN Pipes & Tubes inventory for demanding mechanical applications.
For projects requiring enhanced weldability alongside nitrogen-strengthened yield performance, rely on an experienced SS 201LN Pipes & Tubes Supplier in India and proven SS 201LN Pipes & Tubes Stockist in India. We offer competitive direct-from-mill rates, complete MTC documentation, and rapid worldwide export logistical support.
Jump To Section: Material Specs | Size Chart | FAQs
ASTM A269 / A312 SS 201 & 201LN Pipe Specifications
Our manufacturing facilities execute precision cold drawing, hot forming, custom length cutting, and surface polishing across all low-nickel austenitic standards.
| Technical Parameter | Specification Scope & Manufacturing Capabilities |
|---|---|
| Governing Specifications | ASTM A269, A312, ASME, DIN, EN, GOST, JIS, AMS, AISI, GB |
| Grade Variants | Stainless Steel 201, Type 201LN (UNS S20153 / WNR 1.4371) |
| Manufacturing Types | Seamless, Welded, ERW, EFW, Cold Drawn (CDW), Hot Finished |
| Profile Configurations | Round, Square, Rectangular, Box Section, Oval, Custom Shapes |
| Outside Diameter (OD) Scope | Seamless: 6 mm to 114.3 mm OD | Welded / ERW: 10 mm to 114.3 mm OD (1/2" to 6" Nominal) |
| Schedule Wall Thickness Range | SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XS, SCH XXS (0.1 mm to 60 mm WT) |
| Length & End Treatments | 1 Meter to 12.5 Meters, Single Random, Double Random, Cut Lengths | Plain Ends, Beveled Ends |
| Surface Finish & Coatings | Cold Finished, Polished, Annealed, Bright, Pickled, Electropolish, Satin Finish, Passivated |
Alloy Grade Selection Guide: SS 201 vs SS 201LN
Understanding the chemical modification between standard 201 and nitrogen-strengthened 201LN enables precise engineering selection for budget-conscious yet structural applications.
SS 201 Pipes & Tubes – Economical Austenitic Workhorse
As a premier SS 201 Pipes & Tubes Stockist in India, we supply standard Grade 201 piping formulated by replacing a portion of nickel with manganese and nitrogen. This creates an austenitic alloy featuring excellent yield strength and workability, making SS 201 Pipes & Tubes an ideal cost-reducing substitute for 304 in indoor structural trim, decorative handrails, and general equipment frames.
SS 201LN Pipes & Tubes – Low-Carbon Nitrogen-Reinforced Strength
Sourcing from a trusted SS 201LN Pipes & Tubes Supplier in India provides access to an advanced low-carbon (0.03% max) variant alloyed with deliberate nitrogen (0.10% to 0.25%). SS 201LN Pipes & Tubes deliver significantly increased yield strength (45 ksi min) while effectively preventing carbide precipitation during welding, making them superior for welded structural frameworks and moderate temperature loops.
Chemical, Mechanical & Equivalent Specifications of SS 201 & 201LN
| Element / Parameter | SS 201 (Standard) | Type / Grade 201LN (UNS S20153 / WNR 1.4371) |
|---|---|---|
| Carbon (C) | 0.15% Max | 0.03% Max |
| Manganese (Mn) | 5.50 – 7.50% | 6.40 – 7.50% |
| Phosphorus (P) | 0.060% Max | 0.045% Max |
| Sulphur (S) | 0.030% Max | 0.015% Max (WNR 1.4371 / UNS S20153) |
| Silicon (Si) | 1.00% Max | 0.75% Max |
| Chromium (Cr) | 16.0 – 18.0% | 16.0 – 17.5% |
| Nickel (Ni) | 3.50 – 5.50% | 4.00 – 5.00% |
| Nitrogen (N) | 0.25% Max | 0.10 – 0.25% |
| Copper (Cu) | Optional / 1.00% Max | 1.00% Max |
| Mechanical Property | SS 201 (Standard) | Type / Grade 201LN (UNS S20153) |
|---|---|---|
| Ultimate Tensile Strength (Rm) | 655 MPa (95 ksi min) | 655 MPa (95 ksi min) |
| 0.2% Offset Yield Strength | 260 MPa (38 ksi min) | 310 MPa (45 ksi min) |
| Elongation in 2 Inches (50 mm) | 40% Minimum | 45% Minimum |
| Hardness (Rockwell B) | 100 HRB Max | 100 HRB Max |
| Standard / Grade | WERKSTOFF NR. | UNS Number | AISI / ASTM Standard | JIS (Japan) |
|---|---|---|---|---|
| SS 201 | 1.4372 | S20100 | AISI 201 / ASTM A240 | SUS 201 |
| SS 201LN | 1.4371 | S20153 | AISI 201LN / ASTM A240 | SUS 201LN |
Stainless Steel 201 Series Size & Schedule Chart
Browse our standard ex-stock sizing table for Nominal Bore (NB) sizes, outer diameters, and wall thickness schedules ready for quick dispatch.
| Nominal Bore Size (NB / Inch) | Outer Diameter (OD Scope) | Available Schedules & Wall Thickness Range |
|---|---|---|
| 1/2" NB | 21.34 mm (6 mm to 114.3 mm OD range) | SCH 5S, SCH 10S, SCH 40S, SCH 80S (0.1 mm to 60 mm WT) |
| 3/4" NB | 26.67 mm | SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160 |
| 1" NB | 33.40 mm | SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160, SCH XXS |
| 2" NB | 60.33 mm | SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160, SCH XXS |
| 3" NB | 88.90 mm | SCH 10S, SCH 40S, SCH 80S, SCH 160 |
| 4" NB to 6" NB (Seamless/Welded) | 114.30 mm to 168.28 mm | SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH XS |
| Box & Profile Tubing (Square/Rect) | 10 mm x 10 mm to 100 mm x 100 mm | 0.8 mm to 4.0 mm WT (Custom Cut Lengths 1m - 12.5m) |
Industrial Applications of 201 Series Pipelines
Selecting the 201 series alloy cluster provides an economical, high-strength solution across structural and light industrial sectors.
Commercial Building Trim & Handrail Structures (SS 201)
Widely installed in modern architectural balustrades, decorative facade framing, and interior public safety railings where clean polish finish and affordability are essential.
Transit & Automotive Framing Enclosures (SS 201 / 201LN)
Integrated into bus body framework, trailer structural cross-members, and interior grab rails that utilize the high yield strength of manganese-austenitic steel.
Heavy Welded Fabrications & Equipment Trusses (SS 201LN)
Ideal for welded structural supports and storage racks. The low-carbon chemistry (0.03% max) guards against intergranular weld decay in heavy welded joints.
Food Processing & Commercial Appliance Frameworks (SS 201)
Utilized for structural legs, conveyor side rails, and non-contact machinery frames where easy surface cleaning is required under dry or ambient conditions.
Exhaust Outer Shells & Hardware Supports (SS 201LN)
Applied in dynamic structural brackets and outer exhaust ducting requiring superior yield strength (45 ksi) and high elongation (45% min).
Quality Assurance, MTC Certification & Testing Standards
Every shipment processed by Steel Emporium undergoes rigorous verification under our ISO 9001:2015 & PED 2014/68/EU Quality Policy to guarantee material composition and structural performance.
| Certification / Standard | Compliance & Testing Scope |
|---|---|
| ISO 9001:2015 & Pressure Compliance | Certified QMS with PED 2014/68/EU and AD 2000 Merkblatt approvals. |
| EN 10204 3.1 & 3.2 MTC | Official test reports covering heat numbers, chemistry, and factory origin tracking. |
| PMI & Lab Verification | 100% XRF spectro testing and NABL-accredited laboratory inspections. |
| Mechanical & Weld NDT | Hydrostatic, ultrasonic, and flaring tests guarantee 100% seam integrity. |
| TPI & Corporate Address | Inspection-ready for SGS, TUV, Bureau Veritas, or Lloyds. |
| Verified Corporate Address | Registered Head Office & Operations: 102, Durga Devi Street, Mumbai-400004, Maharashtra, India |
Frequently Asked Questions
- SS 201: Standard higher-carbon alloy engineered for general structural and decorative applications requiring high tensile strength at lower material cost.
- SS 201LN: Low-carbon variant strengthened with nitrogen, engineered specifically to resist weld decay and provide enhanced yield strength for heavy structural fabrications.
Request a Technical Sourcing Quote
Ready to source high-yield 201 series structural tubing for your project? Connect with our technical sales specialists today to receive competitive wholesale quotes, MTC documentation, and global export shipping schedules.