2205 stainless steel bar S31803

Descripción del producto

Introduction:
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***5 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength. The standard S****3 composition has over the years been refined by many steel suppliers, and the resulting restricted composition range was endorsed as UNS S****5 in ***6. S****5 gives better guaranteed corrosion resistance, but much of the S****3 currently produced also complies with S****5.  ***5 is not generally suitable for use at temperatures above **0°C as it suffers from precipitation of brittle micro-constituents, nor below **0°C because of its ductile-to-brittle-transition.



Related Specifications:
 

Grade	UNS No	British BS	Euronorm		Swdish	Japanese
			No	Name	SS	JIS
***5	S****3 / S****5	**8S*3	1.***2	X2CrNiMoN*****3	***7	SUS**9J3L

These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.

Chemical Composition:

 

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
***5 (S****3)	≤ 0.*3	≤ 2.0	≤ 1.0	≤ 0.**0	≤ 0.**0	*1.***3.0	2.**3.5	4.**6.5	0.***0.*0
***5 (S****5)	≤0.*3	≤ 2.0	≤ 1.0	≤ 0.**0	≤ 0.**0	*2.***3.0	3.**3.5	4.**6.5	0.***0.*0

 
Values below are specified values according to ASTM A**6, condition A, for cold finished bars.

 

Grade	Tensile Hardness Strength (MPa)	Yield Strength 0.2% Proof (MPa)	Elongation (% in *0mm)	Hardness
			*5	Rockwell C (HR C)	Brinell (HB)
**5	**0	*5		*1Max	**3Max

 
 

Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion			Thermal Conductivity		Specific Heat ****0° C ( J/kg.K)	Electrical Resistivity (nΩ.m)
		****0°C (µm/m/°C)	****5°C (µm/m/°C)	****8°C (µm/m/°C)	at **0°C (W/m.K)	at **0°C (W/m.K)
***0	**0	*3.7	*4.7	...	*9.0	...	**0	**0

Processing

The high strength that makes ***5 useful in many applications also reduces its machinability. The high work-hardening rate further decreases the machinability of ***5. Cutting speeds are approximately *0% slower than for a standard grade **4. The high strength of ***5 also makes bending and forming more difficult; these operations will require larger capacity equipment than would be required for austenitic stainless steels. The ductility of ***5 is less than that of an austenitic grade (but is not low when compared to most other structural materials), so severe forming operations, such as cold heading, are not generally possible. If severe cold working is required it is recommended that intermediate annealing be carried out.

Welding

Welded by all standard methods, but should not generally be welded without filler metal as this may result in excessive ferrite. AS ***4.6 pre-qualifies welding of ***5 with ***9 rods or electrodes to ensure that deposited metal has the correctly balanced duplex structure. Nitrogen added to the shielding gas will also assist in ensuring adequate austenite in the structure. Heat must be kept low and no pre- or postheat should be used. The lower co-efficient of hermal expansion of all duplex stainless steels compared with austenitic grades reduces distortion and associated stresses.


Applications

Chemical processing, transport and storage.

Oil and gas exploration equipment

Marine and other high chloride environments

Pulp & Paper digesters, liquor

tanks and paper machines

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País:	China
N º de Modelo:	-
Precio FOB:	2775 ~ 3052 / Ton ( Negotiable ) (Negociable) Obtener el precio más reciente
Lugar de origen:	-
Precio de pedido mínimo:	2775 per Ton
Cantidad de pedido mínimo:	1 Ton
Detalle de embalaje:	-
El tiempo de entrega:	-
Capacidad de suministro:	-
Tipo de pago:	L/C, T/T
Grupo de productos :	-