Haynes 188 Seamless Welded Alloy Tube


HAYNES 188 Alloy is a solidsolution-strengthened material which combines excellent high temperature strength with good tabricability at room temperature. It is particularly effective for very long-term applications at temperatures of 1200°F (650°C) or more. In addition, Haynes 188 has excellent high temperature strength and great oxidation resistance up to 2000° F (1095°C).

Specification of HAYNES 188

 Tubing StandardsASTM B163 / ASME SB163, ASTM B516/ ASME SB516
Seamless Tube Size3.35 mm OD To 101.6 mm OD
 Welded Tube Size6.35 mm OD To 152 mm OD
Tubing Swg & Bwg10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Tube wall thickness0.020" –0.220", (special wall thicknesses available)
Tubing LengthSingle Random, Double Random, Standard & Cut length Tube
 Tubing FinishPolished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Form‘U’ bent, Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Etc
Types of TubingSeamless, ERW, EFW, Welded, Fabricated Tube / Tubing
Tube EndPlain End, Beveled End, Treaded Tube

Chemical composition:

Grade % chemical composition
Haynes 188Bal0.05-0.15Max 1.250.2-0.520.0-24.020.0-24.013.0-16.0Max 0.02Max 0.015Max 3.0
Density 0.330 lb/in³   9.14 g/cm³
 Melting Range 2375-2425 °F   1300-1330 °C
Specific Heat 0.097 at  70 °F, Bru/lb °F   405 at 21 °C, J/kg °C
Permeability 1.0007 at 200 oersted
Coefficient of Expansion 6.6 0-200 °F, 10¯⁶ in/in °F
Thermal Conductivity 84 Btu•in/ft²•h•°F   W/wm•°C
Electrical Resistivity613 ohm•circ mil/ft   102.0 microhm-cm
Application for Haynes 188:
1. Gas turbine engines
2. Combustion cans
3. Flame holders
4. Liners
5. Transition ducts
6. Exhaust frames
Available products for Haynes 188:
Welded pipe/tube
Seamless pipe/tube
Pipe fittings
Sheet/ Plate/Coil/Strip
Wire/Wire rope
Welding Rod