Related Tradenames:

No Related Metal names.

Chemistry Data :

There is no chemistry data available for this grade.

Principal Design Features :

This specification covers seamless and welded steel pipe for low temperature service. The Grade 6 alloy steel involved is similar to AISI 4032 low alloy steel.

Applications :

Used for low temperature service piping down to minus 50 F.

Machinability :

Machinability is good, similar to law alloy 4032 steel.

Forming :

The product comes in piping form but may be formed readily by conventional methods.

Welding :

Weldable by conventional methods.

Heat Treatment :

Product is supplied in the normalized, 1500 f and air cooled, condition. It may be quenched and tempered by heating to 1475 F, quench in circulating water and then temper by re-heating to 1100 F and rapid air cooling.

Forging :

Product is supplied in pipe form and not normally forged from that shape.

Hot Working :

Hot working may be done qt 2000 F down to 1600 F if need be. Do not hot work below 1550 F and immediately following hot working cool in a controlled atmosphere furnace from a temperature above 1550 F.

Cold Working :

Cold working may be done by conventional methods.

Annealing :

Anneal, or normalize, at 1600 F and air cool.

Aging :

Not applicable.

Tempering :

See "Heat Treatment"

Hardening :

Hardens from cold working or heat treatment. See "Heat Treatment".

Other Comments :

Grade 6 is a low alloy steel similar to 4032 in properties. Tensile strength requirement for Grade 6 is 60 ksi minimum and notched-bar impact strength is 4 to 13 ft. lbs. depending upon section size.