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Stainless steel 440 & Round Bars

STAINLESS STEEL 440 ROUND BARS / UNS: ASTM/ASTE S44000 / DIN: 1.4125 

Stainless steels are high-combination steels which have high consumption resistance contrasted with different steels because of the nearness of a lot of chromium. In light of their crystalline structure, they are partitioned into three sorts, for example, ferritic, austenitic, and martensitic steels. Another gathering of stainless steels are precipitation-solidified steels. They are a blend of martensitic and austenitic steels. Review 440C stainless steel is a high carbon martensitic stainless steel. It has high quality, direct erosion resistance, and great hardness and wear resistance. Review 440C is equipped for accomplishing, after warmth treatment, the most elevated quality, hardness and wear resistance of all the stainless compounds. Its high carbon content is in charge of these qualities, which make 440C especially suited to such applications as metal rollers and valve parts.

STAINLESS STEEL 440 ROUND BARS APPLICATIONS:
Typical applications include:

• Rolling element bearings
• Valve seats
• High quality knife blades
• Surgical instruments
• Chisels

STAINLESS STEEL 440 ROUND BARS CORROSION RESISTANCE:

Good resistance to the atmosphere, fresh water, foods, alkalis and mild acids. Best resistance in the hardened and tempered and passivized condition. A smooth polished surface also assists.

STAINLESS STEEL 440 ROUND BARS HEAT TREATMENT:

Great imperviousness to the climate, crisp water, nourishments, soluble bases and mellow acids. Best resistance in the solidified and tempered and passivized condition. A smooth cleaned surface likewise helps.

Strengthening – Full toughen – 850-900°C, ease back heater cool to around 600°C and afterward air cool. Sub-basic Annealing – 735-785°C and moderate heater cool.

Solidifying – Heat to 1010-1065°C, trailed by extinguishing in warm oil or air. Oil extinguishing is important for overwhelming segments. Quickly temper at 150-370°C to acquire a wide assortment of hardness esteems and mechanical properties as showed in the going with table.

Hardening in the range 425-565°C is to be maintained a strategic distance from due to lessened effect resistance and consumption resistance. Treating in the range 590-675°C outcomes in bring down hardness (the item end up plainly machinable) and high effect resistance.

STAINLESS STEEL 440 ROUND BARS COMPOSITION:

Grade	C	Mn	Si	P		Cr	Mo	Ni	N
440C	min. max.	0.95 1.20	- 1.00	- 1.00	- 0.040	- 0.030	16.00 18.00	- 0.75	-	-

STAINLESS STEEL 440 ROUND BARS PHYSICAL PROPERTIES:

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (mm/m/°C)	Thermal Conductivity(W/m.K)	Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (nW.m)
0-100°C	0-200°C	0-600°C	at 100°C	at 500°C
440 C	7650	200	10.1	10.3	11.7	24.2	-	460	600

 

 

Our Exports:

Padmavati Steel and Engg. Co. Exports Rods & Round Bars in Gulf Countries of Kuwait, Bahrain, Iraq, Oman, Qatar, Saudi Arabia and the United Arab Emirates (UAE) furthermore in Eupropean nations of Netherland,Italy, Norway, Slovenia, Spain, Sweden, Switzerland.Also in districts, for example, United States Of America, United Kingdom, Australia, South Africa, Mexico, Turkey, France, New Zealand, Angola, Congo, Kenya, Lebanon, and so forth