ASTM A790 Grade 2205 Duplex Stainless Steel Seamless Pipe DN200 SCH80S

Type: 2205 Duplex Steel Seamless Pipe
Material: 2205(UNS S32305/UNS S31803/F51)
Size:

• Outside diameter: 8″ (DN200/219.1mm)
• Wall thickness: SCH80S (12.7mm)

Length: 6m (6000mm)

Chemical Composition, % for 2205 Duplex Stainless Steel Seamless Pipe

Cr	Ni	Mo	C	N
22.0-23.0	4.50-6.50	3.00-3.50	.030 Max	0.14-0.20
Mn	Si	P	S	Fe
2.00 Max	1.00 Max	.030 Max	.020 Max	Balance

Mechanical Properties of Grade 2205 Duplex Stainless Steel Seamless Pipe

Mechanical Properties	2205 Duplex Steel Seamless Pipe
Tensile strength	620 MPa min
Yield strength	450 MPa min
Elongation	25% min
Brinell hardness	293 HB max
Rockwell hardness	31 HR C max

Physical Properties of Grade 2205 Duplex Stainless Steel Seamless Pipe

Physical Properties	2205 Duplex Steel Seamless Pipe
Density	7,805kg/m3
Elastic Modulus	450 MPa min
Mean coefficient of thermal expansion 0-100˚C	13.7µm/m/˚C

Steel pipe wall thickness (ASME B36.10 & B36.19)

Nominal Pipe Size	Outside diameter	Wall thickness
		SCH 5S	SCH 10S	SCH STD (40S)	SCH XS	SCH 160S	SCH XXS
					(80S)
1/8″	10.29	–	1.24	1.73	2.41	–	–
1/4″	13.72	–	1.65	2.24	3.02	–	–
3/8″	17.15	–	1.65	2.31	3.2	–	–
1/2″	21.34	1.65	2.11	2.77	3.73	4.75	7.47
3/4″	26.67	1.65	2.11	2.87	3.91	5.54	7.82
1″	33.4	1.65	2.77	3.38	4.55	6.35	9.09
1 1/4″	42.16	1.65	2.77	3.56	4.85	6.35	9.7
1 1/2″	48.26	1.65	2.77	3.68	5.08	7.14	10.16
2″	60.33	1.65	2.77	3.91	5.54	8.71	11.07
2 1/2″	73.03	2.11	3.05	5.16	7.01	9.53	14.02
3″	88.9	2.11	3.05	5.49	7.62	11.13	15.24
3 1/2″	101.6	2.11	3.05	5.74	8.08	–	16.15
4″	114.3	2.11	3.05	6.02	8.56	13.49	17.12
5″	141.3	2.77	3.4	6.55	9.53	15.88	19.05
6″	168.28	2.77	3.4	7.11	10.97	18.24	21.95
8″	219.08	2.77	3.76	8.18	12.7	23.01	22.23
10″	273.05	3.4	4.19	9.27	12.7	28.58	25.4
12″	323.85	3.96	4.57	9.53	12.7	33.32	25.4
14″	355.6	3.96	4.78	9.53	12.7	35.71	–
16″	406.4	4.19	4.78	9.53	12.7	40.46	–
18″	457.2	4.19	4.78	9.53	12.7	45.24	–
20″	508	4.78	5.54	9.53	12.7	49.99	–
22″	558.8	4.78	5.54	9.53	12.7	53.97	–
24″	609.6	5.54	6.35	9.53	12.7	59.51	–
The dimensions are in millimeters
Sources : ASME B36.19, ASME B36.10

Pipes Diameter Tolerance

PIPE NPS/ DN/ OD	Allowed Outside Diameter Tolerance
	Over		Under
	inches	mm	inches	mm
NPS 1/8 to 1½	1/64	0.4	1/64	0.4
DN 6 to 40
OD 10.3 to 48.3, mm
Over 1½ to 4	1/32	0.8	1/32	0.8
DN 40 to 100
OD 48.3 to 114.3 mm
Over 4 to 8	1/16	1.6	1/32	0.8
DN 100 to 200
OD 114.3 to 219.1 mm
Over 8 to 18	3/32	2.4	1/32	0.8
DN 200 to 450
OD 219.1 to 457 mm
Over 18 to 26	1/8	3.2	1/32	0.8
DN 450 to 650
OD 457 to 660 mm

Pipes Thickness Tolerance

PIPE NPS/ DN/ OD	Tolerance, % from Nominal
	Over	Under
NPS 1/8 to 2½, all t/D ratios	20	12.5
DN 6 to 65
OD 10.3 to 73.0, mm
NPS 3 to 18, t/D up to 5%	22.5	12.5
DN 80 to 450
OD 88.9 to 457 mm
NPS 3 to 18, t/D ＞ 5%	15	12.5
DN 80 to 450
OD 88.9 to 457 mm
NPS 20 and larger, welded, all t/D ratios	17.5	12.5
DN 500
OD 508 mm
NPS 20 and larger, seamless, t/D up to 5%	22.5	12.5
DN 500
OD 508 mm
NPS 20 and larger, seamless, t/D ＞ 5%	15	12
DN 500
OD 508 mm

Pipes Weight Tolerance

• The pipes’ weight tolerance depends on the nominal pipe size, as listed below:
• Pipe of NPS 4 (DN100, 114.3mm) and smaller may be weighed in convenient lots; pipe in sizes larger than NPS 4 shall be weighed separately.
• Pipes NPS 12 (DN300, 323.8mm) and under, weight tolerance is: -3.5% / +10%.
• Pipes over NPS 12 (DN300, 323.8mm),weight tolerance is: -5% / +10%.

Pipes Quantity Tolerance

• Should be within -10% to +10% tolerance, as a rule of thumb (-3/+3% should be acceptable).

Pipes Length Tolerance

• Seamless and Welded (no filler metal added): if cut lengths are ordered, no length of pipe shall be under the length specified and not more than 1/4 in. (6.35 mm) over that specified.
• Forged and Bored, Cast, and Cast Cold-Wrought: if definite cut lengths are ordered, no length of pipe shall be under the length specified and not more than 1/8 in. (3.2 mm) over that specified.
• For pipe ordered to random lengths, the lengths and variations shall be agreed upon between the manufacturer and the buyer.

NPS to DN Conversion Chart

The table shows the conversion between NPS and the pipe outside diameter in inches, mm and DN (nominal diameter):

PIPE NPS	Pipe outside diameter	PIpe outside diameter	NPS to DN
	in inches	in mm	conversion
1/8	0.404	10.26	6
1/4	0.54	13.72	8
3/8	0.675	17.15	10
1/2	0.84	21.34	15
¾	1.05	26.67	20
1	1.315	33.4	25
1 ¼	1.66	42.16	32
1 ½	1.9	48.26	40
2	2.375	60.33	50
2 ½	2.875	73.03	65
3	3.5	88.9	80
3 ½	4	101.6	90
4	4.5	114.3	100
4 ½	5	127	115
5	5.563	141.3	125
6	6.625	168.28	150
7	7.625	193.68	—
8	8.625	219.08	200
10	10.75	273.05	250
12	12.75	323.85	300
14	14	355.6	350
16	16	406.4	400
18	18	457.2	450
20	20	508	500
22	22	558.8	550
24	24	609.6	600
26	26	660.4	650
28	28	711.2	700
30	30	762	750
32	32	812.8	800
34	34	863.6	850
36	36	914.4	900
38	38	965.2	950
40	40	1016	1000
42	42	1066.8	1050
44	44	1117.6	1100
46	46	1168.4	1150
48	48	1219.2	120

China Duplex Steel Seamless Pipe Manufacturer www.epowermetals.com offers ASTM A790 Grade 2205 Duplex Stainless Steel Seamless Pipe DN200 SCH80S 6M.