ECCN 1C118

MTAT

Titanium-stabilized duplex stainless steel (Ti-DSS), having all of the following characteristics .

Category: 1 - MaterialsProduct Group: C - MaterialsLast Updated: 2026-04-10

What This ECCN Covers

ECCN 1C118 controls titanium-stabilized duplex stainless steel (Ti-DSS) meeting all of the composition and form criteria in the entry. This corrosion-resistant specialty steel has process-industry and proliferation-relevant uses and is controlled for Missile Technology and Anti-Terrorism reasons.

Who needs to check this?

Specialty-steel producers and exporters, and fabricators supplying corrosion-resistant vessels and piping to chemical and process industries.

Compliance tip

Classification depends on the exact composition, form, and dimensions in the entry — confirm your material qualifies. The MT reason limits license exceptions; verify the Country Chart and screen for missile-related end uses.

Reviewed by Jack Tan · Last reviewed: Jun 5, 2026

Items Covered

  • 1. Containing 17.0-23.0% by weight of chromium and 4.5-7.0% by weight of nickel;
  • 2. Having a titanium content of greater than 0.10% by weight; and
  • 3. A ferritic-austenitic microstructure (also referred to as a two-phase microstructure) of which at least 10% by volume (according to ASTM E-1181-87 or national equivalents) is austenite; and
  • b.Having any of the following forms:
  • 1. Ingots or bars having a size of 100 mm or more in each dimension;
  • 2. Sheets having a width of 600 mm or more and a thickness of 3 mm or less; or
  • 3. Tubes having an outer diameter of 600 mm or more and a wall thickness of 3 mm or less.

Control Reasons

MTMissile Technology

Items controlled under the Missile Technology Control Regime (MTCR).

Column 1: YesColumn 2: No
ATAnti-Terrorism

Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.

Column 1: YesColumn 2: No

Disclaimer

This information is for reference only. For official classifications, consult BIS or a qualified export control professional.

Official Reference