Stainless steel UNS S44004

UNS S44004 comprehensive description:
S44004 stainless steel with long lasting protection of corrosion resistance is the surface substrate material. It requires no additional system, in order to protect the base metal, the metal itself will continue. Stainless steel products to complete its service life. Due to the raw material is 100% recyclable, have focused on processing. In fact, more than 50% of new stainless steel stainless steel scrap from down, thus completed the full life cycle is used again. So, in the project life cycle is stainless steel, is often the most valuable choice.

UNS S44004 chemical composition

	C	Si	Mn	S	P	Cr	Ni
Min	0.95					16.00
Max	1.20	1.00	1.00	0.030	0.035	18.00	0.60

UNS S44004 Mechanical properties　

Tensile strength N/mm2	Elongation δ5 (%)	Hardness	Internal stress N/mm2
560	18 %	250	250

UNS S44004 heat treatment process
1) annealing, 800 -920 degree slow cooling.
2) quenching, 1010 - 1070 degree oil cooling;
3) tempering, 100 -180 degree cold fast..

UNS S44004 scope of application:
Mainly used in the manufacture of the corrosion environment and no lubrication bearing working parts in strong oxidizing atmosphere. S44004 has good temperature resistance; high temperature size so can also be used as corrosion resistant high temperature bearing steel. In addition, can also be used to manufacture high quality tools, such as medical scalpel, scissors,nozzle, bearings, etc. 440 f, is to improve the performance of S44004 steel free cutting steel, used for automatic lathe, as well as ordinary alloy steel by quenching hardening characteristics, thus can be obtained by selecting the brand and heat treatment conditions to wide range of different mechanical properties. SS44004 under dynamic load capacity is low.Stainless steel UNS S44004 can be produced as S44004 stainless steel plates, S44004 stainless steel bar, S44004 stainless steel wire, S44004 stainless steel forging product

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