ASTM A268 TP439 stainless steel tube / 1.4510 X3crti17 UNS S43035 AISI Type 439 tube

ASTM A268 TP439 stainless steel tube / UNS S43035 AISI Type 439 tube Tp439 1.4510 X3crti17

We are the manufacturer ,Supplier & Exporter of Stainless Steel ASTM A268 TP439 Seamless Stainless Tube,UNS S43035 Tube

439 tube – UNS S43035 tube :

AISI Type 439 (also known as ASTM XM-8) is a ferritic stainless steel designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. Type 439 is a titanium stabilized, 18 percent chromium alloy that may be used in many oxidizing environments where Type 304 is considered adequate in terms of general corrosion resistance but is subject to chloride stress corrosion cracking. It is often used in place of Type 409 where higher thermal conductivity is required. Type 439 does not require annealing after welding to restore ductility or to provide intergranular corrosion resistance. Type 439 also has superior formability capabilities and is heavily used in the automotive industry; it can be work hardened slightly to increase tensile strength.

Physical Properties:

• Melting Point: 2741°F (1505°C)
• Density: 0.278 lbs/in3 / 7.70 g/cm3
• Modulus of Elasticity in Tension: 28 X 106 psi / 193 GPa

Mechanical Properties:

• Tensile Strength Minimum (psi): 66,000 – 70,000
• Yield Strength Minimum 0.2% offset (psi): 43,000 – 48,000
• % Elongation in 2” Minimum: 32 – 36%
• Hardness: Rockwell B74 – 78

Composition:

• • Carbon: 0.025 max
  • Manganese: 0.50
  • Silicon: 0.75
  • Chromium: 17.00 – 19.00
  • Nickel: 0.50
  • Titanium: ≥ 0.20+4(C+N)min – 0.50 max
  • Iron: Balance

All values are maximum values unless otherwise specified. Values derived from applicable AMS and ASTM specifications.