S31803 Duplex Stainless Steel Hex Bolt Full Partial Thread DIN933 DIN931

Brand Name:HT

Certification:PED SGS ISO TUV

Model Number:S31803 Duplex Stainless Steel Hex Bolt Full Partial Thread DIN933 DIN931 M6 - M100 Size

Minimum Order Quantity:1 set

Delivery Time:30-35 work days

Payment Terms:L/C, T/T, Western Union

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Zhengzhou Huitong Pipeline Equipment Co.,Ltd.

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Location: Zhengzhou Henan China

Address: Room 1703, 17th Floor, Building 5, Jinyin Modern City, Guangdian South Road, Jinshui District, Zhengzhou City, Henan Province, China.

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Product Details

Duplex Steel UNS S31803

ASTM A A479 / ASME SA A479 Duplex Steel Nuts, ASTM / ASME F60 hex nuts, Duplex Steel UNS S31803 High Tensile heavy hex nuts

Asiad Steels is one of the known manufacturers of ASTM A479 Duplex Steel UNS S31803 & UNS S32205 Nuts, which is the most widely used duplex (ferritic/austenitic) stainless steel grade. ASTM A479 Duplex Steel UNS S31803 Nuts has excellent general corrosion resistance in a wide variety of corrosive chemicals including seawater and industrial acids. Microstructures of ASME SA 479 Duplex Steel UNS S32205 Hex Nuts consist of a mixture of austenite and ferrite phases. As a result, it display properties characteristic of both austenitic and ferritic stainless steels. ASTM A479 Duplex Stainless Steel 1.4462 Heavy Hex Nuts has resistance to stress corrosion cracking which is of importance in many applications including hot water tanks, process plant, brewing tanks, and desalination plant. ASME SA 479 Duplex Steel UNS S31803 Lock Nutsis annealed at 1020-1070 Degree C (1868-1958 Degree F) and then water quenched.

Duplex Steel UNS S31803 & UNS S32205 Nuts Specification

Material

Specification

Standards

Size

Length

Duplex Steel

ASTM

ASTM / ASME - A/ SA 479 / 479

3 mm
to
200 mm

M02 to M30

Duplex Steel UNS S31803 & UNS S32205 Nuts Chemical Composition

	Cr	N	Ni	C	Mn	Si	P	S	Mo
S31803	min: 21.0 max: 23.0	min: 0.08 max: 0.20	min: 4.5 max: 6.5	0.03 max	2.0 max	1.0 max	0.03 max	0.02 max	min: 2.5 max: 3.5

Duplex Steel UNS S31803 & UNS S32205 Nuts Mechanical Properties

Grade	Tensile Strength (MPa) min	Elongation (% in 50mm)	Yield Strength 0.2% Proof (MPa) min	Hardness Rockwell C (HR C)
UNS-S 31803	650-880	25	448
UNS-S 32205	621	25	448	21 max

Duplex Steel UNS S31803 & UNS S32205 Nuts Physical Properties

Density lbm/in3	Electrical Resistivity mW•in	Electrical Resistivity (in x 10-6)	Heat Capacity BTU/lbm•°F	Thermal Conductivity (BTU/hr•ft•°F)
at 68°F	0.278	0.112	8.7	27.6	33.5
at 212°F		0.119	9.2	26.1	35.4
at 392°F		0.127	9.8	25.4	37.4
at 572°F		0.134	10.4	24.9	39.4

Duplex Steel UNS S31803 & UNS S32205 Nuts Grade Designation

Duplex	Common Name	Related Specifications
		European	UNS	ASTM/ASME
Duplex 2205/31803	SAF 2205 ®	1.4462	S31803/S32205	F51/F60

Company Profile

Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fittings for Huitong Group and assisting another subsidiary company of Huitong Group:Zhengzhou Huitong Machanical Equipment Co.,Ltd., in exporting machanical equipment.

Zhengzhou Huitong Pipeline Equipment Co.,Ltd.,with the strong support of Huitong Group,and years'development and innovation, are more and more professional in technical service and can manufacure products with all kinds of material,shape and size. Especially in elbows, tee, reducer, flange and pipe cap etc., we have gained more than 20 product patent, and hundreds of technology patent. Also,we have gradually taken an ireplacable role in High-pressure,high-temperature and anti-corrosion area. With the continuous construction of engery in China,such as petrol gas,electric power,etc.,our company has become the purchasing center of whole set fittings for such projects.In 2009,a foreign trade team established,is manily engaged in oil gas and electric power projects abroad.By now, our products have been exported to

Canada,Malaysia,Parkistan,UAE, Eygpt,the Middle East countries, etc.. We have passed the qualification of ISO9001:2000 and API quality certification system. High-quality products and high-class service are well received by abroad customers in this industry. The unique diversified production line can offer you one-package serive, you can pruchase all complex products from us at one time. What's more, our sufficient material stock and conventional product stock can ensure you receive satisfied product in the shortest time.

With powerful financial strength,advanced managerial concept, excellent marketing service,strict quality control system and integrated marketing team,we would like to develop together with you hand in hand. Adhering to the operation principle of "faith first and clients foremost", we always supply high quality products, complete after-sales service and favorable prices. We sincerely hope to establish long-term cooperation with you on the basis of mutual benefits, reciprocity and common development.