Chemical Composition

The composition of Tungum alloy tubing C69100 is shown in the list of elements below.  Please note that there are slight differences in composition for DTD and NES grade specifications.

Element Min % Max %
Copper 81.00 84.00
Aluminium 0.70 1.20
Nickel 0.80 1.40
Silicon 0.80 1.30
Iron   0.25
Lead   0.05
Tin   0.10
Manganese   0.10
Total Other Impurities   0.50
Zinc The Remainder The Remainder

 Mechanical Properties

The mechanical properties of Tungum alloy tubing UNS No. C69100 is shown below.  Please note that there are slight differences in properties for DTD and NES grade specifications.

  • Mean Ultimate Tensile Strength: 480 N/mm² (31.07 tons per Sq. in.)
  • Mean 0.2% Proof Stress: 240 N/mm² (15.54 tons per Sq. in.)
  • Design Stress at 4:1 Safety Factor: 107.5 N/mm² (6.96 tons per Sq. in.)
  • Hardness: 140 HV5 max.
  • Elongation (Average): 45 Per Cent
  • Magnetic Permeability: 1.0015μ Max.
  • Thermal Conductivity at 300 K: 1.0W/cm K.
  • Weight: 8.52 x 10 kg/mm³ (0.308 lbs per cu.in.)

Conflict Minerals

The mining of certain minerals in the Democratic Republic of Congo (DRC) and the adjoining countries partially contributes to significant human rights abuses and to the financing of violent conflicts in this region. In 2010, U.S. Congress passed legislation that is usually referred to as “Dodd-Frank Act” (full name: “Dodd-Frank Wall Street Reform and Consumer Protection Act”). Section 1502 of the Dodd-Frank Act adopted by the U.S. Securities and Exchange Commission (SEC) require companies who file reports with the SEC to disclose whether the products they manufacture or contract to manufacture contain “conflict minerals” that are “necessary to the functionality or production” of those products. “Conflict minerals” contain tantalum, tin, tungsten (and the ores from which they originate) and gold, regardless of where they are sourced, processed or sold.

T2 Alloys Limited  condemns all activities in the raw material sector connected to illegal or unlawful exploitation of minerals and ores. As such, the company fully supports the goals of the Organization for Economic Co-operation and Development (OECD) to avoid the use of raw materials which directly or indirectly finance or benefit armed groups in conflict-affected and high-risk areas.

Statement

T2 Alloys Limited does not purchase any material that contains these “conflict minerals” which directly or indirectly finance or benefit armed groups in the DRC or an adjoining country. We are implementing reasonable due diligence processes to ensure  “conflict minerals” are not being used in our products.   These actions are based on established frameworks of the Organization for Economic Cooperation and Development (OECD) and from other private sector initiatives.  We will continue to work closely with customers, suppliers and other stakeholders to secure good practices and ensure our product remains free of any “conflict materials”.