MG 701
TIG
MARAGING TOOL
STEEL TIG WIRE
DC STRAIGHT POLARITY (DC-)
GENERAL CHARACTERISTICS:
MG 701T is a nickel, cobalt, molybdenum wire designed to weld maraging tool steels. The
as welded hardness of RC 30-33 allows deposits to be machined prior to maraging (age
hardening). Maraging at 450°C for 2 hours produces a hardness of RC 48-52. Maraging
steels do not require preheat; other steels should be preheated to their recommended
preheat temperature prior to welding.
APPLICATI***:
Build-up and repair of hot working dies and tools made from maraging steels used in
aluminum and zinc die casting industry. Use for build-up on H-11 and H-13 tool steels
when machining in the as welded condition is desirable. When used in aluminum and zinc
die casting dies, deposits will harden in service.
TECHNICAL DATA:
Typical Deposit Chemistry C 0.02 Mn 0.10 Si 0.50 S 0.02
P 0.01 Ni 19.25 Co 7.5 Mo 4.60
Hardness as welded................................................................................ RC 30-33
age hardened 2 hours @ 450°C ...................................................RC 48-52
Machinability as welded ................................................................................ Good
Current ....................................................................................DC- straight polarity
PROCEDURE:
When the process is gas tungsten arc welding (TIG) use direct current straight polarity, one
hundred percent argon gas is recommended. Adjust the amperage according to the base
metal thickness and the amount of deposit required. Do not preheat maraging steels.
Other steels use recommended preheat temperatures
品牌：美国Messer