Duplex steel

duplex steel 2205 S32205 Tubes Pipes SAF 2507 EN 10216-5 1.4462 F60 Seamless Tubing piping

OD:4-426mm THK:0.5-25mm
SUFACE:AP(Annealed and pickling) / MP(mechanically polish)/BA(bright annealed)
Product description: duplex steel 2205 S32205 Tubes Pipes SAF 2507 EN 10216-5 1.4462 F60 Seamless Tubing piping,2205 S32205 pipes tubes, 2205 S32205 tubing piping, Stainless steel duplex steel 2205 S32205 pipes tubes,stai
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duplex steel 2205 S32205 Tubes Pipes SAF 2507 EN 10216-5 1.4462 F60 Seamless Tubing piping

Key words

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Introduce:

ASTM A789 ASME SA 789 S32205 2205 Duplex Tubing is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed duplex stainless steel with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness. S32205 is very similar with S31803. The difference is on Chemical composition. Usally we use S32205 replace S31803.

Alloy 2205 Duplex Tubing provides pitting and crevice corrosion resistance superior to 316L or 317L austenitic stainless steel in almost all corrosive media. It also has high corrosion and erosion fatigue properties as well as lower thermal expansion and higher thermal conductivity than austenitic.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 austenitic alloy ease of fabrication and corrosion resistance.
ASTM A789 ASME SA 789 S32205 Duplex Stainless Steel is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steel. “Duplex” describes a family of stainless steel that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless steel. The structure of S32205 duplex stainless steel consists of austenitic pools surrounded by a continuous ferritic phase. In the annealing condition, S32205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex stainless steel tube.
2205 Duplex Tubing Duplex stainless steel (3.0% to 4.0% Mo) has high strength and excellent resistance to chloride stress corrosion cracking. Multipurpose stainless steel, originally used as a fluid flow tube in the oil and gas industry, is now more used in the chemical processing and petrochemical industries and as a digester in the pulp and paper industry.
Usage of S32205 Duplex stainless steel should be limited to temperatures below 600° Extended elevated temperature exposure can embrittle 2205 stainless.

TINSI company provides ultimate flexibility in fulfilling each & every customer requirements irrespective of the size of the order，we keeping efficient and friendly customer service as the top concern.We always welcome any queries or suggestions from our clients to improve the services and hence to serve them better. In order to guarantee the quality, we have been equipped with advanced testing equipment and professional technical staff. What’s more, we pay highly attention to after sale service.

EN-10216-5 1.4462 Composition %:

C	Si	Mn	P	S	Cr	Mo	Ni	N	Cu
max. 0,03	max. 1,00	max. 2,00	max. 0,035	max. 0,015	21,00 - 23,00	2,50 - 3,50	4,50 - 6,50	0,10-0,22	-

ASTM A789 ASTM A790 S32205 2205 Duplex Tubing Composition %:

C	Si	Mn	P	S	Cr	Mo	Ni	N	Cu
max. 0,03	max. 1,00	max. 2,00	max. 0,030	max. 0,020	22,00 - 23,00	3,0 - 3,5	4,5 - 6,50	0,14-0,20	-

ASTM A789 ASTM A790 S31803 Stainless Steel Tubing Composition %:

C	Si	Mn	P	S	Cr	Mo	Ni	N	Cu
max. 0,03	max. 1,00	max. 2,00	max. 0,030	max. 0,020	21,00 - 23,00	2,5 - 3,5	4,50 - 6,50	0,08-0,20	-

ASTM A789 / ASME SA789 covers grades of average wall thickness, or, if specified on the order, minimum wall thickness, of stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Within the text, the SI units are shown in brackets. The inch-pound units shall apply unless the M designation of this specification is specified in the order.

Referenced Documents

ASTM Standards:
A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
SAE Standard:
SAE J 1086 Practice for Numbering Metals and Alloys (UNS)

Heat Treatment

All tubes shall be furnished in the heat-treated condition in accordance with the procedures shown in Table 2. For seamless tubes, as an alternate to final heat treatment in a continuous furnace or batch-type furnace, immediately follow- ing hot forming while the temperature of the tubes is not less than the specified minimum solution treatment temperature, tubes may be individually quenched in water or rapidly cooled by other means.

Table. ASTM A789 Duplex Steel Chemical Composition

The steel shall conform to the chemical requirements prescribed in Table

UNS
Designation	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu	Others
S31803	0.030	2.00	0.030	0.020	1.00	4.5–6.5	21.0–23.0	2.5–3.5	0.08–0.20	. . .	. . .
S32205	0.030	2.00	0.030	0.020	1.00	4.5–6.5	22.0–23.0	3.0–3.5	0.14–0.20	. . .	. . .
S32750	0.030	1.20	0.035	0.020	0.80	6.0–8.0	24.0–26.0	3.0–5.0	0.24–0.32	0.50	. . .
S32760	0.030	1.00	0.030	0.010	1.00	6.0–8.0	24.0–26.0	3.0–4.0	0.20–0.30	0.50–1.00	W 0.50–1.00

Hydrostatic or Nondestructive Electric Test

1 Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.
2. The hydrostatic test shall be in accordance with Speci- fication A1016/A1016M, except that in the calculation of the hydrostatic test pressure 64000(441.2) shall be substituted for 32000(220.6).

Table: Heat Treatment

UNS Designation	Temperature	Quench
S31803	1870-2010 °F [1020-1100°C]	Rapid cooling in air or water
S32205	1870-2010 °F [1020-1100°C]	Rapid cooling in air or water
S32750	1880-2060 °F [1025-1125°C]	Rapid cooling in air or water
S32760	2010-2085 °F [1100-1140°C]	Rapid cooling in air or water

Tensile Strength and Hardness Requirements

The material shall conform to the tensile and hardness properties prescribed in Table

Grade	Tensile strength, min., ksi [MPa]	Yield strength, min., ksi [MPa]	Elongation in 2 in., or 50mm, min, %	Hardness, Max Brinell
S31803	90 [620]	65 [450]	25	290
S32205	95 [655]	70 [485]	25	290
S32750	116 [800]	80 [550]	15	310
S32760	109 [750]	80 [550]	25	300