AMI Refractrahold manufacturers and exports refractory anchors in alloys like, 304, 310, 316, 330, 601, 800, etc in shapes such as round bars, flat strips, round wire and plates. Refractory anchors are available in various standards and grades to suit the requirement of our customers. Below are alloy grade and their details.

304 / 304L REFRACTORY ANCHOR

This is one of the most widely used and oldest of stainless steel. This was originally called 18-8 which stood for its chromium and nickel content. It possesses an excellent combination of strength, corrosion resistance and fabricability. It is available in the widest variety of forms and sizes of any stainless steel. This can be effortlessly welded and is preferred for many deep drawn, spun or formed parts due to high ductility.

This was originally called 18-8 which stood for its chromium and nickel content. It possesses an excellent combination of strength, corrosion resistance and fabricability. It is available in the widest variety of forms and sizes of any stainless steel. Forging, heading and other hot working should follow uniform heating to 2100-2300 F (1149-1260 C). Sudden cooling is necessary to attain maximum corrosion resistance in finished parts. This alloy does not respond to heat treatment. Cold work will cause an increase in both hardness and strength.

309 / 309S REFRACTORY ANCHORS

Various 309 stainless steel grade can be quickly welded by using fusion or resistance process. Oxyacetylene welding is not permitted in this grade. 309 should be welded with 309 welding wire only.

310 / 310S REFRACTORY ANCHOR

Stainless steel 310 alloys have very high resistance to oxidation under midly cyclic conditions through 1093.3 degrees Celsius. The content of high Nickel and chromium provide corrosion resistance, superior resistance to oxidation and the retention of a larger fraction of room temperature strength than the common alloys like 304. 310 is widely used at cryogenic temperatures with superb toughness to -267 Celsius and has low magnetic permeability.

316 / 316L REFRACTORY ANCHOR

Stainless steel 316 grade is an austenitic chromium-nickel stainless steel which includes molybdenum. Molybdenum is added to this grade to increase corrosion resistence, enhance resistance to the chloride ion solutions and give expanded strength at high temperatures.

Corrosion resistant is enhanced against hydrochloric, acetic, tartaric acids, formic and sulphuric acids. Stainless steel 316L grade is a low carbon chromium-nickel steel with corrosion resistance same as 316. This grade has resistance to intergranular corrosion following welding.

321 / 321H REFRACTORY ANCHOR

Stainless steel alloy 321 is titanium based austenitic stainless steel with greater corrosion resistance. It has high resistance to intergranular corrosion after presentation to temperatures in the chromium carbide precipitation scope of 427-816 Celsius. This alloy maintains oxidation to 816 Celsius and has higher stress properties than 304 and 304 L. 321 has good low temperature toughness.

Stainless steel alloy 321H is the higher carbon version of this alloy. It is produced to improve resistance for temperatures above 537 Celcius. This alloy cannot be hardened by heat treatment, only by cold working. It can be effectively welded and processed by standard fabrication processes.