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S355NL Equivalent in India

S355NL equivalent material in India refers to Indian standards and grades that closely match the properties of EN 10025-3 S355NL, a high-strength, fine-grained structural steel known for its low-temperature toughness and weldability. In India, the equivalent is primarily IS 2062 E350C, a high-strength structural steel under IS 2062, which offers similar yield strength and impact resistance for cold climates.

This article explores the S355NL alternative in India, including chemical composition, mechanical properties, and applications, addressing core keywords s355nl equivalent material in india and s355nl alternative. For more details, visit our EN 10025-3 S355NL normalized structural steel plate.

 

What is S355NL Steel?

S355NL is a normalized or normalized rolled fine-grain structural steel under EN 10025-3, with:

  • S: Structural steel.
  • 355: Minimum yield strength of 355 MPa (≤16 mm).
  • NL: Normalized, with impact toughness tested at -50°C.

It's ideal for cold-climate applications like offshore platforms and bridges, requiring an Indian equivalent for local sourcing and compliance with BIS (Bureau of Indian Standards).

 

S355NL Equivalent in India: IS 2062 E350C

In India, the closest S355NL equivalent material in India is IS 2062 E350C, a high-strength low-alloy (HSLA) structural steel under IS 2062:2011 (Hot Rolled Steel Plates for Structural Use). E350C offers:

  • E: Structural steel.
  • 350: Minimum yield strength of 350 MPa.
  • C: Charpy impact toughness tested at -20°C (upgradable to -50°C for equivalents).

IS 2062 E350C is widely available from Indian mills like SAIL (Steel Authority of India Limited) and Jindal Steel, serving as a cost-effective S355NL alternative for structural projects compliant with Indian standards.

Other Alternatives in India

  • IS 2062 E410C: Higher strength (410 MPa yield), for applications needing more than S355NL.
  • SAILMA 350HI: High-impact variant of E350, with enhanced low-temperature toughness (-50°C).
  • IS 961 Grade Fe 410: Older equivalent, but E350C is preferred for modern use.

These alternatives are certified by BIS and available from suppliers like Tata Steel or Essar Steel.

 

Chemical Composition Comparison

The S355NL equivalent material in India comparison shows IS 2062 E350C's composition aligns closely with S355NL:

Element

S355NL (EN 10025-3, Ladle, max %)

IS 2062 E350C (max %)

Carbon (C)

0.18

0.20

Silicon (Si)

0.50

0.40

Manganese (Mn)

0.90-1.65

1.00-1.50

Phosphorus (P)

0.025

0.040

Sulfur (S)

0.015

0.040

Nitrogen (N)

0.015

0.012

Aluminum (Al)

0.02 (min, total)

Not specified

Niobium (Nb)

0.05

0.05

Vanadium (V)

0.12

0.10

Copper (Cu)

0.55

0.50

Carbon Equivalent (CEV):

  • S355NL: ≤0.43% (≤63 mm).
  • IS 2062 E350C: ≤0.42%, similar weldability.

The S355NL alternative in India has slightly higher P/S but comparable grain-refining elements for toughness.

 

Mechanical Properties Comparison

S355NL and IS 2062 E350C share similar strength, with E350C tested at -20°C (upgradable):

Property

S355NL (EN 10025-3, ≤16 mm)

IS 2062 E350C (≤16 mm)

Yield Strength (min, MPa)

355

350

Tensile Strength (MPa)

470-630

490-630

Elongation (min, %)

22

22

Impact Toughness (min, J)

27 @ -50°C

27 @ -20°C (up to -50°C optional)

Strength: Nearly identical yield (355 vs 350 MPa) and tensile (470-630 vs 490-630 MPa). Toughness: S355NL's -50°C testing excels in extreme cold; E350C's -20°C is standard, but upgrades match S355NL. Thickness Range: Both up to 250 mm.

 

Welding and Heat Treatment

  • S355NL: CEV ≤0.43% supports GMAW or SAW (EN 1011-2). Preheating (100-150°C) for >20 mm; PWHT optional (550-650°C). Consumables: ER70S-6 (GMAW), EM12K flux with EH14 wire (SAW).
  • IS 2062 E350C: CEV ≤0.42% similar weldability; preheating per IS 2062 guidelines.

The S355NL equivalent material in India welding is comparable, with E350C offering local availability.

 

Applications in India

S355NL and IS 2062 E350C are used in:

  • Offshore Platforms: Cold marine structures in Indian coastal projects.
  • Wind Towers: Northern wind farms in Rajasthan or Gujarat.
  • Bridges and Infrastructure: Himalayan or cold-region bridges.
  • Pressure Vessels: LNG storage in cold climates.

In India, IS 2062 E350C is preferred for compliance with local codes (IS 800), while S355NL is imported for Eurocode projects.

 

Why Choose Gangsteel?

Gangsteel supplies S355NL equivalent material in India:

  • Inventory: Extensive stock in China, shipping to India.
  • Sizes: Thickness 6–250 mm, widths 2000/2500/3000 mm, lengths up to 12,000 mm.
  • Delivery: 7-30 days to India.
  • Certifications: EN 10204 3.1/3.2, UT testing (EN 10160), BIS equivalents.
  • Processing: Cutting, welding, bending.

Contact us for EN 10025-3 S355NL normalized structural steel plate.

 

FAQ

What is the S355NL equivalent material in India?IS 2062 E350C is the primary equivalent, with 350 MPa yield, 490-630 MPa tensile, and -20°C toughness (upgradable to -50°C). It's produced by SAIL and Jindal, compliant with IS 2062:2011 for structural use in India.

Is IS 2062 E350C a direct S355NL alternative?Yes, E350C is a close S355NL alternative with similar strength (350 MPa yield vs 355 MPa) and CEV (≤0.42% vs ≤0.43%), but S355NL has stricter -50°C testing. E350C suits Indian projects with BIS certification.

How does S355NL equivalent material in India compare in toughness?S355NL guarantees 27 J at -50°C; IS 2062 E350C at -20°C, but upgrades (E350C HI) match -50°C for cold applications like northern pipelines.

What are applications of S355NL alternative in India?IS 2062 E350C is used in offshore platforms, wind towers, bridges, and pressure vessels in cold regions like the Himalayas or coastal areas, compliant with IS 800.

Is S355NL equivalent material in India weldable?Yes, E350C has CEV ≤0.42%, supporting GMAW/SAW with minimal preheating (100-150°C for >20 mm), similar to S355NL, for Indian fabrication.

Where to source S355NL alternative in India?From SAIL, Jindal, or importers like Gangsteel; E350C plates are readily available with BIS certification for local projects. See EN 10025-3 S355N normalized structural steel plate.

 

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