Duplex stainless steel (DSS for short) refers to stainless steel with ferrite and austenite accounting for about 50% respectively, and the content of less phase generally needs to reach 30% at least. In the case of low C content, Cr content is 18% ~ 28%, Ni content is 3% ~ 10%. Some steels also contain Mo, Cu, Nb, Ti, N and other alloy elements.
This kind of steel has the characteristics of austenite and ferritic stainless steel. Compared with ferrite, it has higher plasticity and toughness, no room temperature brittleness, significantly improved intergranular corrosion resistance and welding performance, and maintained 475 brittleness, high thermal conductivity and Superplasticity of ferritic stainless steel. Compared with austenitic stainless steel, it has higher strength, intergranular corrosion resistance and chloride stress corrosion resistance. Duplex stainless steel has excellent pitting corrosion resistance and is also a nickel saving stainless steel.
Exotic Fastener Material List
Aluminum
Aluminum 2024 Aluminum 6061 Aluminum 7075
Copper, Brass & Bronze
Aluminum Bronze Aluminum Nickel Bronze Brass Copper CDA 110
Manganese Bronze 675 Naval Brass 464 Phosphorous Bronze 510 Silicon Bronze 651
Silicon Bronze 655
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Exotics
904L A-286 AL6XN Alloy 20
Alloy 50 Alloy 60 Avesta 2205 Avesta 254 SMO
Tantalum Titanium Waspaloy Zirconium
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Nickel Alloys
Nickel Alloy B2 Nickel Alloy B3 Nickel Alloy C276 Nickel Alloy G-30
Inconel 600 Inconel 601 Inconel 625 Inconel 718
Inconel�¢ 800/800H Inconel
Duplex 2205 is a nitrogen-enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. Duplex ? describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance). Usage of 2205 Duplex stainless steel should be limited to temperatures below 600 F. Extended elevated temperature exposure can embrittle 2205 stainless.
Duplex 2507 is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking. Usage of Duplex 2507 should be limited to applications below 600�?�° F (316�?�° C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507. Duplex 2507 possesses excellent mechanical properties. Often a light gauge of 2507 material can be used to achieve the same design strength of a thicker nickel alloy. The resulting savings in weight can dramatically reduce the overall cost of fabrication. The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance). Usage of 2205 Duplex stainless steel should be limited to temperatures below 600 F. Extended elevated temperature exposure can embrittle 2205 stainless
S31803, S32205, S32750, S31500 ASTM A790/A790M; ASME SA790/SA790M OD 17.15 168.28mm WT 1.65 2.11mm(Sch 5S) WT 1.65 3.4mm(Sch 10S) WT 2.31 7.11mm(Sch 40S) WT 3.2 10.97mm(Sch 80S) ASTM A789/A789M; ASME SA789/SA789M; GB/T 21833 OD 15.88 50.8mm WT 0.89 4.0mm ASTM A790/A790M; ASME SA790/SA790M ASTM A789/A789M; ASME SA789/SA789M; GB/T 21833
Kcm Special Steel Co., Ltd we are Manufacturer & Supplier of Stainless Steel Pipe and Tube and Fittings ( elbow, tee, Reducer, Cap, Cross, Flange ) in China wenzhou city 1. Material: 201, 202, 301, 304, 304L, 310S, 316, 316L, 316Ti, 317, 317L, 321, 347,904L Duplex SS, S31803 / 2205, S32750 / 2507 , S32760 Monel400 Inconel600 Incoloy800 Alloy20 Alloy28 Nickel Alloy. Welded Seamless Pipe Supplier Manufacturer 2. Product specification: OD 2 - 1600mm x WT0.8 - 60 mm Square & rectangular. 3. Executive standard: Astm A312m, Astm A269, Astm A213, Astm A790, Astm A789, Astm A815, ANsi B16.9, Ansi B16.28, ANSI B16.11, Jis B2311, Jis B2312, Jis B2313, Din2605, Din 2606, Din 2615, Astm A511, Astm A554, Jis G3463, Jis3446, Jis3448, Jis3459, Din17456, Din17458, Din2462, GB14975, Gb14976, Gb13296 We also have large qty of ready stock, it can support ur urgent project.
Commodity name: duplex stainless steel tubes Features: 1) type: austenitic 2) process method: cold drawn / cold rolled 3) o. D.: 6 - 219mm 4) w. T.: 0.5 - 25mm 5) grade: tp304, tp304l, tp316, tp316l, tp321, tp317l, tp321h, tp304h, tp304ln, 31803, 310s, 1.4571 6) standards: A) astm (asme) B) a213 / a213m (sa213 / sa213m) C) a269 / a269m D) a312 / a312m (sa312 / sa312m) E) din 17457 F) en10216-5tc1 / tc2 iso1127 7) widely used to manufacture outdoor equipment building materials, Heat-resistant parts and parts that are difficult to make heat treatment For chemical, coal and petroleum industries that have high requirements For intergranular corrosion resistant proper ties. Packing: bundle, seaworthy wooden case Packed in wooden cases
Features: 1. Commodity: seamless stainless steel pipe/tube 2. Process method: cold drawn/cold rolled 3. Surface finish: anneal/pickling/manual polish/ mechanical polish 4. Material: tp304, tp304h, tp304l, tp310/s, tp316l, tp316/316l, tp316ti, tp317l, tp321/321h, tp410, s31803, s32750, 904l, 1.4301, 1.4306, 1.4401, 1.4404, 1.4541, 1.4571, 1.4438, 1.4539, 1.4845 and so on. 5. Standards: astm a312/213/269, astm a789/a790, astm b677, din17458, en10216 , etc. 6. Size: A) nps: 1/8" to 10" B) schedule: 5/5s, 10/10s, 20/20s, 40/40s, 80/80s, 120/120s, 160/160s, acc. To ansi b36.19/36.10 C) o. D.: 6 mm to 219 mm D) w. T.: 0.5 mm to 25 mm 7. Length: max. 20 meters 8. Delivery conditions: annealled, picklinged and polished 9. Packing: seaworthy wooden cases/steel framed cases/simple packaging 10. Certificate: iso 9001:2000, ped, tuv. Seaworthy wooden cases/steel framed cases/simple package.
Feature: 1)Type/Grade: S31803, 2205 2)Standard: ASTM A 789, ASTM A790. 3)Delivery conditions: Annealed and pickled (as usual), bright annealing or polish( for requested) 4)Applications: for fluid and gas transport; structure and machining; chemical engineering; ship building etc.
Material Specifications Our highly-skilled manpower is dedicated to producing the finest quality butt weld pipe fittings, meeting a wide variety of material specifications. Their knowledge and experience of metal properties, welding procedures and quality control have set the pace and standard expected by our customers world-wide. Commonly fabricated materials and specifications are: Stainless Steel: ASTM A-403 et ASME SA-403, 304, 304L, 304H, 304N, 304LN, 316, 316L, 316H, 316N, 316LN, 309, 310, 317, 317L, 321, 321H, 347 et 347H UNS 31254 (254SMo) Duplex Steel: ASTM A-815 & ASME SA-815, UNS 31803, UNS 32750, UNS 32760, UNS 32755, UNS-S 32550 Nickel and Nickel Alloys: ASTM B-366 & ASME SB-366, Nickel 200 & 201 (WPN & WPNL), Monel 400 (WPNC), Inconel 600 (WPNCI), Incoloy 800 (WPNIC), Incoloy 825 (WPNICMC), Alloy 20 (WP 20 CB), Hastelloy, C-276,C-4, C-22 Chrome-molybdenum : ASTM A-234 & ASME SA-234,WP-5, WP-11, WP-22, WP-9, WP-91 Aluminium: ASTM B-361, 66061, 5083, 5086 Titanium: ASTM B-363 & ASME SB-363, WPT2, WPT7, WPT12 Carbon Steel: High-yield low temperature MSS-SP-75, CSA 245, ASTM A-420, ASTM A-860, ASTM A-234 & ASME SA-234 Tees & reducing tees, WPB, Clad Fittings (CLAD).
Wuxi Hao Yiu metal main stainless steel rods: stainless steel round bar, stainless steel hexagonal bar, stainless steel bar, stainless steel ground rods, stainless steel bar, stainless steel half rods, stainless steel oval bar, flat bar, angle iron, iron and so on. Stainless steel rod material: SUS316, 316L, 316F, 301, 302, 303, 303F, 303Cu, 304, 304L, 304F, 309S, 310S, 310, 310S, 321, SUS630, SUS631420F, 430F, 416F, 1214, 1215, 45#, 1045, A3. Stainless steel rod specifications: Rod: Ф0.7-Ф300 hexagonal rods: H2-S55mm bar: 2*2-75*75mm. "Non-standard can be customized according to customer requirements" Stainless steel surface requirements:: polishing, grinding, black rod, wire, knurled, pulling the flowers, the company is good, no trachoma, crack-free, uniform hardness, good machinability, corrosion protection performance. My company has been adhering to the "quality of survival, to the integrity and development" business philosophy, the highest quality-best prices, back to old and new customers. Company products are widely used in home appliances, kitchen equipment, food, medical devices, metal hose, shipping, computer accessories, cell phone parts, machinery manufacturing, automotive parts and construction, industry and other fields. Company based on customer-oriented, customer first, honest, thought of this, take the quality as the life, pay attention to after-sale tracking service, mutual benefit, common development is our service. Your phone, fax us a bridge, your needs, that is my responsibility, look forward to serving you, create brilliance! if
