SINOXX 4580 Steel


Designation by Standards

Brand Name	Ravne	Mat. No.	DIN	EN	AISI/SAE
SINOXX 4580	PK12NB	1.4580	-	X6CrNiMoNb17-12-2	316 Condition B

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
max. 0.08	max. 1.00	max. 2.00	17.50	2.25	12.00	-	-	Nb=10 x C - 1

Description
This austenitic stainless steel has an increased molybdenum content to increase its resistance to corrosion when compared to other 300 series alloys. It will resist scaling at temperatures up to 871^oC and maintains good mechanical properties and ductility.

Applications
Widely used in industry, it was initially designed for paper mill machinery. It has been used in marine environments and a wide variety of general industrial components. Component parts for the cellulose, paper, oil, soap and textile industry, production of paints, meat processing industry, breweries, dairies and for surgical instruments.

Physical properties (average values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 200, 186 (200^oC), 172(400^oC)
Density [g/cm³]: 7.98
Thermal conductivity [W/m.K]: 15.0
Electric resistivity [Ohm mm²/m]: 0.75
Specific heat capacity[J/g.K]: 0.50

Coefficient of Linear Thermal Expansion 10^{-6 o}C^-1

20-100oC	20-200oC	20-300oC	20-400oC	20-500oC
16.5	17.5	18.0	18.5	19.0

Hardening
Harden from a temperature of 1020-1100^oC followed by water or oil quenching. Structure is austenite with small ferrite component.

Mechanical properties in solution-annealed condition
Hardness: 130-190 HB
0.2 % proof stress: 215 N/mm²
Tensile strength: 510-740 N/mm²
Elongation: min. 35% (for d<=160, longit.)
Notch impact energy (ISO-V): min. 85 J

Mechanical Properties At Elevated Temperatures

Temperature	50oC	100oC	150oC	200oC	250oC	300oC	350oC	400oC
0.2 % proof stress in N/mm2	206	186	177	167	157	145	140	135

Forging
Hot forming temperature: 1200-900^oC.

Machinability
Low speeds and constant feeds will minimize this alloy's tendency to work harden. Tougher than 304 stainless with a long stringy chip, the use of chip breakers is recommended.

Corrosion Resistance
Resistant to a wide variety of marine environments, salts, dilute nitric, acetic and sulfuric acids.

Welding
All common fusion and resistance methods except oxyacetylene welding have proven successful. Use AWS E/ER316 or 316L filler metal for best results.

Cold working
Shearing, stamping, heading and drawing can be successfully performed . To remove internal stresses, a post-work annealing is recommended.

Forms manufactured: Please see the Dimensional Sales Program.

Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

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