Manufacturer of Stainless Steel 347H Refractory Anchors

BAHUBALI Alloys have SS 347 UNS S34700 is invaluable for high temperature administration in view of its great mechanical properties . SS 347 Refractory Anchors additionally has incredible imperviousness to intergranular consumption taking after introduction to temperatures in the chromium carbide precipitation range from 800° to 1500° F. SS 347 Refractory Anchors is like SS 321 concerning intergranular erosion which is accomplished through the utilization of columbium as a settling component to expand this element. SS 347 Refractory Anchors can not be solidified through warmth treating, but rather raised properties might be gotten through icy decrease. SS 347H Refractory Anchors is an adjustment of SS 347 Refractory Anchors with a higher carbon substance, to give enhanced high temperature quality.


Table 1. Chemical Composition for SS 347H Refractory Anchors

Grade C Mn Si P S Cr Mo Ni N
347H min. 0.04 - - - - 17.0 3.00 9.0 -
max. 0.10 2.00 0.75 0.045 0.03 19.0 4.00 13.0 0.10

Table 2. Mechanical Properties for SS 347H Refractory Anchors

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
347H 515 205 35% 95 217

Table 3. Physical Properties for SS 347H Refractory Anchors

Coefficient of
Thermal Expansion (min/in)-°F
Thermal Conductivity BTU/hr-ft-°F Specific Heat BTU/lbm -°F Modules of Elasticity (annealed)2-psi
at 68 °F at 68 – 212°F at 68 – 1832°F 68-932°F at 32 – 212°F in tension (E)
0.288 9.2 11.4 14.7 0.12 28 x 106

Table 4. Grade specifications for 347H Stainless Steel Refractory Anchors

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
347H S34700 304S31 58E 1.4961 X5CrNi18-10 2332 SUS 347H
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Table 5. Standard specifications for 347H Stainless Steel Refractory Anchors

Grade UNS S34709 (1.4961)
Form V shape, Y shape and crook anchors but as per clients drawings and requirements.

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