Corrosion Resistant Duplex Stainless Steel Round Bar S32900 S31803 S32205

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Place of Origin	shenzhen, China
Brand Name	GSf
Certification	SGS
Model Number	S32900 S31803 S32205

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Place of Origin	shenzhen, China	Brand Name	GSf
Certification	SGS	Model Number	S32900 S31803 S32205

Duplex Stainless Steel Round Bar S32900 S31803 S32205 Corrosion Resistant

Specifications

Duplex Round Bar S32900, S31803, S32205

Duplex Round Bar S32900 Duplex & Super Duplex Steel:

Duplex alloys were originally created to combat corrosion problems caused by chloride-bearing cooling waters and other aggressive chemical process fluids. Called Duplex because of its mixed micro-structure with about equal proportions of ferrite and austenite, duplex stainless steels are a family of grades, which range in corrosion performance depending on their alloy content. The chemical composition based on high contents of Cr and Mo, improves intergranular and pitting corrosion resistance, respectively. Additions of nitrogen can promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness. Moreover, the two-phase micro-structure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steels.

Composition of Duplex Stainless Steels :

The table lists the duplex stainless steels covered in ASTM specifications for plate, sheet, and bar products.

UNS Number Duplex Grades	Typeb	C	Mn	P	S	Si	Cr	Ni	Mo	N	Cu
S31200	-	0.030	2.00	0.045	0.030	1.00	24.0-26.0	5.5-6.5	1.20-2.00	0.14-0.20	-
S31260	-	0.03	1.00	0.030	0.030	0.75	24.0-26.0	5.5-7.5	2.5-3.5	0.10-0.20	0.20-0.80
S31803	-	0.030	2.00	0.030	0.020	1.00	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20	-
S32001	-	0.030	4.0-6.0	0.040	0.030	1.00	22.0-23.0	1.00-3.00	0.60	0.05-0.17	1.00
S32205	2205	0.030	2.00	0.030	0.020	1.00	19.5-21.5	4.5-6.5		0.14-0.20	-
S32304	2304	0.030	2.50	2.50	0.030	1.00	21.5-24.5	3.0-5.5	0.05-0.60	0.05-0.20	0.05-0.60
S32520	-	0.030	1.50	0.035	0.035	0.80	24.0-26.0	5.5-8.0	3.0-4.0	0.20-0.35	0.50-2.00
S32550	255	0.04	1.50	0.040	0.030	1.00	24.0-27.0	4.5-6.5	2.9-3.9	0.10-0.25	1.5-2.5
S32750	2507	0.030	1.20	0.035	0.020	0.80	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	0.50
S32760	-	0.030	1.00	0.030	0.010	1.00	24.0-26.0	6.0-8.0	3.0-4.0	0.20-0.30	0.50-1.00
S32900	329 d	0.06	1.00	0.040	0.030	0.75	23.0-28.0	2.5-5.0	1.0-2.0		-
S32950	-	0.03	2.00	0.035	-		-		-		-

BENEFITS

High strength

High resistance to pitting, crevice corrosion resistance.

High resistance to stress corrosion cracking, corrosion fatigue and erosion,

Good sulfide stress corrosion resistance,

Low thermal expansion and higher heat conductivity than austenitic steels,

Good workability and weldability,

High energy absorption.

Company Details

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Year Established:

2010 
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Shenzhen Guangshenfa Metal Co., Ltd, founded in 1998, is a specialty manufacturer of premium quality stainless steel and other high alloy tubing products that are designed to insudtry and customer specifications. The Company is located in Shenzhen city, Guangdong province. ... Shenzhen Guangshenfa Metal Co., Ltd, founded in 1998, is a specialty manufacturer of premium quality stainless steel and other high alloy tubing products that are designed to insudtry and customer specifications. The Company is located in Shenzhen city, Guangdong province. ...

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