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John Fairbank

stainless steel strip with good quality and the Sales clerk service is very good.i like this company i hope can work with your again
Harish kumar

أنا راضٍ جدًا عن هذه الصفقة ، ليس فقط لأنهم يشحنون بسرعة ، ولكن أيضًا جودة البضائع جيدة ، وأتطلع إلى التعاون التالي.
Ricky

Cooperate with a trial order. The service is excellent and the price is very good. Product quality is guaranteed and can stand inspection
Fierce Urchin

good ,the galvanized steel coil quality is good and i donot see the broken on them.that is nice
Fleuriau

Shipment speed is very fast, and the requirements can meet me. Salesman is very responsible.
Krouma

600 tons 316L stainless steel plates, delivery fast. JO worked very hard for me in the packaging design. I appreciate it very much .
Pedro Ngeru Maina

The conversation was very pleasant and professional. All problems can be solved. However, the price still falls short of the desired target. I hope we can have the opportunity to cooperate next time
Andrew Greg - Turkey

this is the second order l buy this company ,quality is very good ,same as europure quality .we will go on ccooperate with this company .
Mechile Kilar Chard - Brazi

200 ton Stainless steel sheet is arrived on 10th Oct 2014 , the quality is very good.,deliver time is very fast It's very lucky we find this factory
Pongpol Pluemsati-Thailand

Quality is very good and delivery time very fast ,we want to do long terms business with this company

Contact Person : Ava

Phone Number : 0086 18706170710

Whatsapp : +8618706170710

8mm 1/4" 1/2 316 Stainless Steel Plates Astm A240 S31803 3mm ss sheet 202

Place of Origin	Jiangsu Wuxi
Brand Name	OEM/ODM
Certification	SGS BV TUV ISO
Model Number	201/304/316/316L/430/420/904L/310S
Minimum Order Quantity	3tons
Price	negotiable based on the quantity
Packaging Details	Standard seaport packing or as customized
Delivery Time	within 15-20 days after deposit
Payment Terms	T/T, Western Union, L/C
Supply Ability	2000tons per months

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details

Standard	AISI, ASTM, BS, DIN, GB, JIS	Width	1240-2000mm
Length	1000-6000mm Or Customized	Thickness	0.3-3mm
Port	Shanghai	Type	Steel Plate
Edge	Slit Edge Or Mill Edge	Grade	S31803 S2205
High Light	1/4 316 Stainless Steel Plate , 1/2 316 Stainless Steel Plate Astm A240 , 8mm 316 Stainless Steel Plate

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Product Description

S31803 S2205 Hot Rolled Cold Rolled 6mm Stainless Steel Plate Sheet

UNS S31803 DUPLEX STAINLESS STEEL STOCKHOLDERS AND SUPPLIERS, DELIVERING TO THE WHOLE OF THE UK. WEST YORKSHIRE STEEL ARE SUPPLIERS OF UNS S31803, A CHROMIUM NICKEL MOLYBDENUM AUSTENITIC FERRITIC GRADE. IT COMBINES IMPROVED RESISTANCE TO STRESS CORROSION CRACKING, PITTING, CREVICE CORROSION AND HIGH STRENGTH IN COMPARISON WITH OTHER STAINLESS STEEL GRADES. UNS S31803 GRADE DUPLEX RESISTS CHLORIDE ENVIRONMENTS AND SULPHIDE STRESS CORROSION. IT IS APPROXIMATELY DOUBLE THE YIELD STRENGTH OF STANDARD AUSTENITIC STAINLESS STEEL GRADES. AS WITH OTHER DUPLEX STAINLESS STEEL SPECIFICATIONS OXIDATION RESISTANCE IS GOOD AT HIGH TEMPERATURE, THOUGH IT IS PRONE TO EMBRITTLEMENT WHEN EXPOSED TO TEMPERATURES ABOVE 300°C AND IS PRONE TO EMBRITTLEMENT AT 475°C WHEN EXPOSED FOR 2 HOURS ONLY. IT IS ALSO SUBJECT TO EMBRITTLEMENT BETWEEN 370-540°C WHEN EXPOSED OVER A LONGER PERIOD.

Super Duplex Stainless Steel – Alloy 2507 (UNS S32750 and UNS S32760) Specifications

Super Duplex Plates, Sheet, Coil, and Strip: ASTM A240, ASME A 240
Super Duplex Seamless Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790
Super Duplex Welded Pipes / Tubes: ASTM A 789 / 790, ASME SA 789 / 790
Super Duplex Bars, Rods, Wire: ASTM A 276 / 479, ASME SA 276 / 479
Super Duplex Pipe Fittings & Flanges: ASTM A 815, ASME SA 815
Super Duplex Forged Flanges: ASTM A182 Grade F55
Super Duplex Forgings: ASTM A473

STAINLESS STEEL	TRADENAME	UNS NO.	WERKSTOFF NO.	DENSITY (G/CM3)
Super Duplex	F55 / 2507, F53	S32760 / S32750	1.4501 / 1.4410	7.805

Super Duplex – S32760 Grade Stainless Steel Chemical Composition, %

CR	NI	MO	C	W	CU
24.0-26.0	6.0-8.0	3.0-4.0	0.030 Max	0.5-1.0	0.50-1.0

N	MN	SI	P	S	FE
0.2-0.3	1.00 Max	1.0 Max	0.03 Max	0.01 Max	Balance

Super Duplex – S32750 / 2507 Grade Stainless Steel Chemical Composition, %

CR	NI	MO	C	N	MN
24.0-26.0	6.0-8.0	3.0-5.0	0.030 Max	.24-.32	1.20 Max
Si	Cu	P	S	Fe
0.80 Max	0.50 Max	0.035 Max	0.020 Max	Balance

Physical & Mechanical Properties of Super Duplex 2507 Stainless Steel (UNS S32750 and UNS S32760)

	SUPER DUPLEX STAINLESS STEEL
Density	7.805
Melting Range,℃	1350 ℃
Elongation %	15 min.
Tensile Strength (Mpa)	800
Yield Strngth (Mpa)	550
Hardness (Brinell)	270 max

ABOUT Duplex 2205 Stainless Steel

Duplex 2205 Stainless Steel Introduction
Duplex 2205 Stainless Steel Key Properties
Duplex 2205 Stainless Steel Composition
Duplex 2205 Stainless Steel Mechanical Properties
Duplex 2205 Stainless Steel Physical Properties
Duplex 2205 Stainless Steel Grade Specification Comparison
Duplex 2205 Stainless Steel Possible Alternative Grades
Duplex 2205 Stainless Steel Corrosion Resistance
Duplex 2205 Stainless Steel Heat Resistance
Duplex 2205 Stainless Steel Heat Treatment
Duplex 2205 Stainless Steel Welding
Duplex 2205 Stainless Steel Machining
Duplex 2205 Stainless Steel Fabrication
Duplex 2205 Stainless Steel Applications

Duplex 2205 Stainless Steel Introduction

Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that

require good corrosion resistance and strength. The S31803 grade stainless steel has undergone

a number of modifications resulting in UNS S32205, and was endorsed in the year 1996.

This grade offers higher resistance to corrosion.

At temperatures above 300°C, the brittle micro-constituents of this grade undergo precipitation,

and at temperatures below -50°C the micro-constituents undergo ductile-to-brittle transition;

hence this grade of stainless steel is not suitable for use at these temperatures.

Duplex 2205 Stainless Steel Key Properties

The properties that are mentioned in the below tables pertain to flat rolled products such as plates,

sheets and coils of the ASTM A240 or A240M. These may not be uniform across other products

such as bars and pipes.

Duplex 2205 Stainless Steel Composition

Table 1 provides the compositional ranges for grade 2205 duplex stainless steel.

Table 1 - Composition ranges for 2205 grade stainless steels

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
2205 (S31803)	Min Max	- 0.030	- 2.00	- 1.00	- 0.030	- 0.020	21.0 23.0	2.5 3.5	4.5 6.5	0.08 0.20
2205 (S32205)	Min Max	- 0.030	- 2.00	- 1.00	- 0.030	- 0.020	22.0 23.0	3.0 3.5	4.5 6.5	0.14 0.20

Duplex 2205 Stainless Steel Mechanical Properties

The typical mechanical properties of grade 2205 stainless steels are listed in the table below.

Grade S31803 has similar mechanical properties to that of S32205.

Table 2 - Mechanical properties of 2205 grade stainless steels

Grade	Tensile Str (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell C (HR C)	Brinell (HB)
2205	621	448	25	31 max	293 max

Duplex 2205 Stainless Steel Physical Properties

The physical properties of grade 2205 stainless steels are tabulated below. Grade S31803 has similar physical properties to that of S32205.

Table 3 – Physical properties of 2205 grade stainless steels

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Co-eff of Thermal Expansion (μm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C ( J/kg.K)	Electrical Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
2205	782	190	13.7	14.2	-	19	-	418	850

Duplex 2205 Stainless Steel Grade Specification Comparison

Table 4 provides the grade comparison for 2205 stainless steels. The values are a comparison of functionally similar materials. Exact equivalents may be obtained from the original specifications.

Table 4 - Grade specification comparisons for 2205 grade stainless steels

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
Grade	UNS No	BS	En	No	Name	Swedish SS	Japanese JIS
2205	S31803 / S32205	318S13	-	1.4462	X2CrNiMoN22-5-3	2377	SUS 329J3L

Duplex 2205 Stainless Steel Possible Alternative Grades

Given below is a list of possible alternative grades, which may be chosen in place of 2205.

Table 5 - Grade specification comparisons for 2205 grade stainless steels

Grade	Reasons for choosing the grade
904L	Better formability is needed, with similar corrosion resistance and lower strength.
UR52N+	High resistance to corrosion is required, e.g. resistance to higher temperature seawater.
6%Mo	Higher corrosion resistance is required, but with lower strength and better formability.
316L	The high corrosion resistance and strength of 2205 are not needed. 316L is lower cost.

Duplex 2205 Stainless Steel Corrosion Resistance

Grade 2205 stainless steel exhibits excellent corrosion resistance, much higher than that of grade 316. It resists localized corrosion types like intergranular, crevice and pitting. The CPT of this type of stainless steel is around 35°C. This grade is resistant to chloride stress corrosion cracking (SCC) at temperatures of 150°C. Grade 2205 stainless steels are apt replacements to austenitic grades, especially in premature failure environments and marine environments.

Material summary and usage

S31803 steel is ultra-low carbon dual- phase stainless acid resistant steel. It is provided with excellent pitting corrosion and crevice corrosion resistant performances. In addition, nitrogen, as a strong element that forms and stabilizes austenite, still ensures the existence of certain amount of austenite in the structure even if after welding or heating under high temperature, and makes it difficult to form single-phase ferrite. The dual-phase proportion is not sensitive to the change of heating temperature.

Chemical composition(%)

Standard	No.	C (max)	Si (max)	Mn (max)	P (max)	S (max)	Cr	Ni	Mo	N
ASTM	S31803	0.030	1.00	2.00	0.030	0.020	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20
EN	1.4462	0.030	1.00	2.00	0.035	0.015	21.0-23.0	4.5-6.5	2.5-3.5	0.10-0.22

Mechanical properties

No.	Tensile Strength　 σb(Mpa)	Yield Point σs(Mpa)	Elongation Rate δ5(%)	HB	HRC
S31803	≥620	≥450	≥25	≤290	≥30.5

Application fields

It is suitable for manufacturing various industrial heat exchangers, especially in the H2S condition that contains chlorides, acetic acid and other organic acid solutions: conveying pipes in oilfields, oil ports and well heads; air coolers for oilfields and gas fields; air coolers for refineries and hydrogen cracking towers; PE coolers; seawater desalting exchangers, etc.

Packing and delivery

If you have any question, please feel free to contact us any time.

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