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.

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.

Chemical Composition

Melting range

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.

Chemical Composition

Melting Range

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.

Chemical Composition

Melting Range

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.

Chemical Composition

Melting Range

347 / 347H REFRACTORY ANCHOR

347 alloys is austenitic chromium steel containing columbium which takes into consideration the end of carbide precipitation. This is balanced out by the increase of chromium and tantalum and offers higher stress rupture properties than alloy 304 and 304L, which can also be utilized for exposures where sensitization is of concern. This alloy has outstanding corrosion resistance better than 321. Alloys 347H is higher carbon composition which displays higher temperature properties

Chemical Composition

Melting Range

Stainless steel 446 is high chromium ferritic heat resistant alloy which has huge resistance to oxidation, sulfidation and other forms of hot corrosion. This grade is used between 815-1148 Celsius. 446 is the only heat resistant alloy that will endure molten copper and bass. Annealing when compulsory should be performed at 1550-1650 F followed by fast cooling. Welding may be performed by standard techniques. Preheating and post heating to 300-600F is an advantage. Weld wire of AWS E310 or E312 are usually recommended for maximized weld deposit ductility

Chemical Composition

Melting Range

253 MA REFRACTORY ANCHOR

253MA is an incline heat resistant alloy with high strength and extraordinary oxidation resistance. This alloy keeps up the heat resistant properties by advance control of micro alloy additions. Silicon and other metals combined provides better oxidation resistance upto 2000F. Nitrogen carbon and other elements joins to give creep rupture strength similar to the nickel base alloys.

Chemical Composition

Melting Range

Inconel 601 REFRACTORY ANCHOR

Inconel 601 is a nickel-chromium alloy used for application that has resistance to corrosion and heat. They are made to resist high temperature oxidation, remaining exceptionally resistant to oxidation through 2200F. This alloy resists spalling even under states of extreme thermal cycling. They have great temperature strength. It has good resistant to aqueous corrosion, high mechanical strength, and is promptly shaped, machined and welded.

Chemical Composition

Melting Range

Incoloy 800 REFRACTORY ANCHOR

INCOLOY alloy 800 is a widely used material for construction of equipment requiring corrosion resistance, heat resistance, strength, and stability for service up to 1500°F (816°C). Alloy 800 offers general corrosion resistance to many aqueous media and, by virtue of its content of nickel, resists stress corrosion cracking. At elevated temperatures it offers resistance to oxidation, carburization, and sulfidation along with rupture and creep strength. For applications requiring greater resistance to stress rupture and creep, especially at temperatures above 1500°F (816°C),

Chemical Composition

Melting Range

Incoloy 800H / 800HT REFRACTORY ANCHOR

INCOLOY alloys 800H and 800HT have significantly higher creep and rupture strength than INCOLOY alloy 800. The three alloys have nearly identical chemical composition limits. However, chemical composition limits vary with carbon, aluminium and titanium. The carbon content of INCOLOY alloy 800 is 0.10% max with no limit on the lower end. The carbon content for INCOLOY alloy 800H is 0.05 to 0.10%, which is the upper end of the 0.10% maximum specified for INCOLOY alloy 800. The chemical limits for INCOLOY alloy 800HT are even more restrictive yet still within the limits specified for INCOLOY alloy 800H. The carbon content for INCOLOY alloy 800HT is further restricted to 0.06 – 0.10%.

Incoloy 800H and HT are ordinarily utilized as a part of temperatures above 1100F where resistance to creep and rupture is required. HT can be welded by the normal process utilized on stainless steels. 800HT wont get to be embrittled even after long stretches of use in the 1200-1600F range where numerous stainless steels get to be brittle. At the point when cold shaped, broadly the grain size delivers an obviously undulated surface called orange peel.