DM Duplex Steel UNS S31803, S32550, S32750, S32205, S32760 Products
DM Duplex Steel UNS S31803, S32550, S32750, S32205, S32760 Bars, Rods, Super DM Duplex Steel UNS S32760, S32750, S32950 Rod and Bar : Agent, Exporter, Dealer, Distributor, Stockist, Stockholder and Supplier in India :
DM Duplex Stainless Steel Bar:
Range : 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. Finish : Bright Black Polish Form : Round Square Hex (A/F) Bush Rectangle Flat
Trade Name: SAF 2205 DM Duplex Stainless Steel Bar
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M Surface: hrap, hot rolled pickled or sand blasting finished, cold drawn, bright, polished, hairline Size: Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements Material Grades: AISI 201, AISI 202, AISI 301, AISI 302, AISI 303, AISI 304, AISI 304L, AISI 309, AISI 310, AISI 316, AISI 316L, AISI 321, AISI 347, AISI 410, AISI 420, AISI 430, AISI 431, AISI 630, 15-5PH, 17-4PH Shape Manufactured: Flat Bar, Square Bar, Round Bar, Rings, Hollows, Blocks and special Shapes.
Mechanical Property Requirements - Annealed (As Supplied)
to ASTM A276-98b UNS S31803 for Hot and Cold Finished
0.2 % Yield
Typical Mechanical Properties at room temperature - Annealed
650 - 900
Elevated Temperature Properties*
While the oxidation resistance of 2205 is good at high temperature as with other duplex stainless steel grades, it is subject to embrittlement when exposed to temperatures above 300 oC even for short periods. It is subject to embrittlement at 475 oC when exposed for 2 hours only, also between 370 oC and 540 oC over a longer period.
Precipitation of sigma phase will also occur above 650 oC resulting in decreased ductility and corrosion resistance.
*2205 is therefore not recommended for use at temperatures above 300 oC.
Typical Mechanical Properties at Elevated Temperatures for 63.5 mm Dia Section - Annealed Condition
Charpy V Notch Impact
After 100 Hours at Temp.
N.B. Should embrittlement occur then annealing is required to rectify.
Low Temperature Properties
2205 is not recommended for use at temperatures below -50 oC, again due to its embrittling effect resulting in low ductility.
N.B. Unlike high temperature exposure however, the embrittling effect of low temperature exposure is not permanent, existing only for the duration at low temperature.
Typical Charpy V-Notch Impact Properties at Low and Sub Zero Temperatures
Bending Cold Bending
Cold bending will be extremely difficult due to the high yield strength. Any cold working causing more than 10% deformation should be followed by annealing.
Hot Bending :
Hot bending should be performed at 950 oC - 1000 oC followed by annealing.
2205 has superior resistance to general corrosion in most media than 316L or 317L austenitic stainless steel grades
Stress Corrosion Cracking
2205 has a much higher resistance to stress corrosion cracking than 304L or 316L austenitic stainless steel grades.
2205 has a higher resistance to pitting corrosion than 316L or 317L austenitic stainless steel grades.
Crevice Corrosion / Erosion Corrosion
2205 has a higher resistance to crevice corrosion and erosion corrosion than 316L austenitic stainless steel grade.
2205 has better fatigue strength in corrosive environments than the standard austenitic stainless steel grades due to its higher strength and higher corrosion resistance.
N.B. For optimum corrosion resistance, surfaces must be free of scale and foreign particles.
Finished parts should be passivated.
Heat uniformly to 1150 oC. Hold until temperature is uniform throughout the section.
Do not forge below 900 oC.
Finished forgings should be air cooled.
Finally forgings will require to be annealed in order to obtain optimum mechanical properties and corrosion resistance.
Heat to 1020 oC - 1100 oC. Hold until temperature is uniform throughout the section. *Soak as required.
Quench in water to obtain optimum corrosion resistance.
*Actual soaking time should be long enough to ensure that the part is heated thoroughly throughout its section to the required temperature, 30 minutes per 25mm of section may be used as a guide.
Please consult your heat treater for best results.
The machinability of 2205 in the annealed as supplied condition is lower than either 304 and 316 due to it's higher yield strength (approximately double).
Typically 80% as machinable as the standard 304 and 316 grades, but lower against the improved machinability 304 and 316 grades.
N.B. All machining should be carried out as per machine manufacturers recommendations for suitable tool type, feeds and speeds.
2205 is readily weldable by the various standard electric arc welding processes.
Oxcyacetylene welding is however not recommended due to the possibility of carbon pick up in the weld area.
Welding of 2205 should always be carried out using duplex stainless electrodes* similar to the parent metal.
No pre-heat or post-heat is required.
Origin Of Material
Brand Name : We are Dealer, Distributor, Stockist, Stockholder and Supplier of Below Brand Products
http://www.columbus.co.za : COLUMBUS in SOUTH AFRICA: Lean DM Duplex Steel - e.g. 2001/1.4482 /
Steel e.g. 2205/1.4462.
OUTOKUMPU ( FINLAND & INDIA ) : DM Duplex Steel 2205 & 2507 Coil and sheet, Bar, Welded pipe & Plate Manufacturers ---
MEGAMEX ( TEXAS USA ) : Mega Mex supplies LDX2101, 2205, Ferralium 255, Zeron 100 and 2507 in the form of plate, sheet, strip, bar, pipe, tubing, pipe fittings, flanges and weld wire.
SCHOELLER BLECKMANN ENGLAND & DUBAI : Schoeller-Bleckmann (UK) is a major stockholder and distributor of Stainless Steel Tube, Pipe & Hollow Bar.
SANDVIK ( SWEDEN & INDIA ) : DM Duplex stainless steels / Sandvik SAF 2507, Sandvik SAF 2707 HD, Sandvik SAF 3207 HD / TUBE, PIPE, FITTINGS AND FLANGES Manufacturers in SWEDEN
(DM Duplex stainless steel plate USE : DM Duplex stainless steel plate is often used for storage tanks. High corrosion and erosion resistance is a must for storage tanks, whether the designer wants to prevent leakage during desalinization, avoid contamination in pharmaceutical or food processing, or store chips as well as black and white liquor for the pulp and paper industry.)
We have exported our material to numerous countries in the world including but not limited to Kuwait, Peru, UK, Singapore, Poland, Iraq, Malaysia, Serbia, Turkey, Yemen, Australia, Lebanon, Oman, Srilanka, Egypt, Angola, Canada, Madagascar, Saudi Arabia, Indonesia, UAE, Italy, Jordan, Qatar, USA, Brazil, Nigeria, South Africa, Kuwait, Mexico, New Zealand, Netherlands, Germany, Venezuela, Iran, Denmark, Spain, Bahrain & many other countries....