Umbhobho wentsimbi engatyiwayo we-duplex

ame: Duplex Stainless Steel pipe

Ubungakanani: 4mm-325mm

Izinto: S31803/S32205/S32750/S32760,etc.

Type：Welded, Seamless, ERW, EFW, Fabricated Pipe

Uluhlu lobukhulu: SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXH, SCH XXS, SCH XS

Unyango lomphezulu: Polishing, Hairline, Pickled, etc.

Imeko yokugqibela: Round, Square, Rectangular, Coil，U Tube

Isicelo: Petrochemical, Oil & Gas； Geothermal, Mining；Chemical Process, Pharmaceutical, Biomass；Sea Water, Water Desalination； LNG (Liquefied Natural Gas), Nuclear Power, Solar Power。

Inombolo yemodeli: Duplex stainless steel

Okumvelaphi: Wenzhou,Zhejiang

Umgangatho:ASTM/ASME A789/SA789, A790/SA790

Uhlobo: KAIXIN

Technics: CFD

Iphakheji: Packed in woven bag, or put in wooden case

Ixabiso: 2500~3600 usd/ton

Ukuhanjiswa: Vumelana Ngesixa

Isatifikethi: ISO SGS

Amandla emveliso: 1000 tons per month

Thumela umbuzo Incoko ephilayo

Compared with ferritic stainless steel and austenitic stainless steel, duplex stainless steel pipe has good welding performance. It is neither like the welding heat affected zone of ferritic stainless steel, because of the grain coarsening, the plastic toughness is greatly reduced, nor like austenitic stainless steel, it is more sensitive to welding hot cracks.

Due to its special advantages, I-duplex engagqwali is widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, paper-making machinery and other industrial fields. In recent years, it has also been used in the field of bridge bearing structure, with a good development prospect.

Specification of Duplex Stainless Steel pipe

Umgangatho	ASTM/ASME A789/SA789, A790/SA790
Ibanga	UNS NO. S31803/S32205/S32750/S32760,etc.
Uhlobo	SEAMLESS / ERW / WELDED/ FABRICATED
Ubude	Single Random, Cut Length
End	Plain End, Bevelled End, Threaded

Applications of Duplex Stainless Steel pipe

Oil and gas equipment
Offshore technology
Seawater desalination plants
Chemical industry, especially when handling chlorides
Flue-gas cleaning
Pulp and paper industry
Cargo tanks and pipe systems in chemical tankers
Firewalls and blast walls on offshore platforms
Bridges
Storage tanks
Pressure vessels, reactor tanks, and heat exchangers
Rotors, impellers and shafts

Duplex Stainless Steel pipe Schedule Chart

1/8" IPS(.405" O.D.)	3 1/2" IPS( 4.000" O.D.)
Seamless Pipes, SCH 40, 80	Pipes, SCH 10, 40, 80, 160, XXH
1/4" IPS(.540" O.D.)	4" IPS(4.500" O.D.)
Pipes, SCH 10, 40, 80	Seamless Pipes, SCH 10, 40, 80, 160, XXH
3/8" IPS(.675" O.D.)	5" IPS( 5.563" O.D.)
Seamless Pipes, SCH 10, 40, 80	Pipes, SCH 10, 40, 80, 160, XXH
1/2" IPS(.840" O.D.)	6" IPS(6.625" O.D.)
Seamless Pipes, SCH 5, 10, 40, 80, 160, XXH	Seamless Pipes, SCH 5, 10, 40, 80, 120, 160, XXH
3/4" IPS(1.050" O.D.)	8 ” IPS(8.625" O.D.)
Pipes, SCH 10, 40, 80, 160, XXH	Stainless Pipes, SCH 5, 10, 40, 80, 120, 160, XXH
1" IPS:(1.315′ O.D.)	10" IPS(10.750" O.D.)
Seamless Pipes, SCH 5, 10, 40, 80, 160, XXH	Pipes, SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4" IPS(1.660" O.D.)	12" IPS(12.750" O.D.)
Seamless Pipes, SCH 10, 40, 80, 160, XXH	Pipes, SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2" IPS(1.900" O.D.)	14" IPS(14.000" O.D.)
Seamless Pipes, SCH 10, 40, 80, 160, XXH	Pipes, SCH10 (.188), SCH40 (.375)
2" IPS(2.375" O.D.)	16" IPS(16.000" O.D.)
Seamless Pipes, SCH 10, 40, 80, 160, XXH	Pipes, SCH10(.188), SCH40(.375)
2 1/2" IPS(2.875" O.D.)	18" IPS (18.000" O.D.)
Seamless Pipes, SCH 10, 40, 80, 160, XXH	Pipes, SCH-40 (.375)
3" IPS( 3.500" O.D.)
Seamless Pipes, SCH 5, 10, 40, 80, 160, XXH

Indlu enamacala amabini Engatyiwayo steel Pipe Chemical Composition

Ibanga	C≤	Mn≤	P≤	S≤	U≤	Nikhobhi	Khrayisiti	Moya	N	Ithusi
S31803	0.03	2.00	0.03	0.02	1.00	4.5-6.5	21.0-23.0	2.5-3.5	0.08-0.20	_
S32205	0.03	2.00	0.03	0.02	1.00	4.5-6.5	22.0-23.0	3.0-3.5	0.14-0.20	_
S32750	0.03	1.20	0.035	0.02	0.80	6.0-8.0	24.0-26.0	3.0-5.0	0.24-0.32	0.5
S32760	0.05	1.00	0.03	0.01	1.00	6.0-8.0	24.0-26.0	3.0-4.0	0.20-0.30	0.50-1.00
S31500	0.03	1.2-2.0	0.03	0.03	1.4-2.0	4.25-5.25	18.0-19.0	2.5-3.0	0.05-0.10

Indlu enamacala amabini Engatyiwayo steel Pipe Iimpawu zoomatshini

Iimpawu zomatshini	Tensile,min,ksi[MPa]	Yield,min,ksi[MPa]	Elongation,%(min)	Hardness,HB(max)
S31803	90 [620]	65 [450]	25	290
S32205	95 [655]	65 [450]	25	290
S32750	116 [800]	80 [550]	15	300
S32760	109 [750]	80 [550]	25	300
S31500	90 [630]	60[440]	30	290

Dimension Table Of Duplex Stainless steel Pipe

Nominal Thickness (ngaphakathi) MM	Ubungakanani bompayipi (ngaphakathi)	Transverse Areas (in2) MM2			Ububanzi (ngaphakathi) MM		Volume (ft3/ft)	Number of Threads per inch of Screw	Ubunzima		Length of Pipe (ft per sq.0 foot of surface)
Nominal Thickness (ngaphakathi) MM	Ubungakanani bompayipi (ngaphakathi)	Internal	External	Intsimbi	Internal	External	Volume (ft3/ft)	Number of Threads per inch of Screw	(kg/m)	(lb/ft)	Internal Surface (ft)	External Surface (ft)
0.007	1/8	0.006	0.013	0.007	0.027	0.0405	0.00004	27	0.036	0.024	14.020	9.043
0.009	¼	0.010	0.023	0.013	0.036	0.0540	0.00007	18	0.063	0.042	10.049	7.007
0.009	3/8	0.019	0.036	0.017	0.049	0.0675	0.00013	18	0.084	0.057	7.075	5.066
0.011	½	0.030	0.055	0.025	0.062	0.0840	0.00021	14	1.026	0.085	6.014	4.055
0.011	¾	0.053	0.087	0.033	0.082	1.0050	0.00037	14	1.068	1.013	4.064	3.064
0.013	1	0.086	1.036	0.049	1.005	1.0315	0.00060	11 ½	2.050	1.068	3.064	2.090
0.014	1 ¼	1.050	2.016	0.067	1.038	1.0660	0.00104	11 ½	3.038	2.027	2.077	2.030
0.015	1 ½	2.004	2.084	0.080	1.061	1.0900	0.00141	11 ½	4.004	2.072	2.037	2.001
0.015	2	3.036	4.043	1.008	2.007	2.0375	0.00233	11 ½	5.043	3.065	1.085	1.061
0.020	2 ½	4.079	6.049	1.070	2.047	2.0875	0.00333	8	8.062	5.079	1.055	1.033
0.022	3	7.039	9.062	2.023	3.007	3.0500	0.00513	8	11.027	7.058	1.025	1.009
0.023	3 ½	9.089	12.056	2.068	3.055	4.0000	0.00687	8	13.056	9.011	1.008	0.095
0.024	4	12.073	15.090	3.017	4.003	4.0500	0.00884	8	16.006	10.079	0.095	0.085
0.026	5	20.000	24.030	4.030	5.005	5.0563	0.01389	8	21.074	14.061	0.076	0.069
0.028	6	28.089	34.047	5.058	6.007	6.0625	0.02006	8	28.023	18.097	0.063	0.058
0.032	8	50.002	58.042	8.040	7.098	8.0625	0.03552	8	42.049	28.055	0.048	0.044
0.037	10	78.085	90.076	11.090	10.002	10.0750	0.05476	8	60.024	40.048	0.038	0.036
0.041	12	111.090	127.064	15.074	11.094	12.0750	0.07763	8	79.077	53.060	0.032	0.030
0.044	14	135.030	153.094	18.064	13.013	14.0000	0.09354	8	93.075	63.000	0.028	0.027
0.050	16	176.070	201.005	24.035	15.000	16.0000	1.02230	8	116.008	78.000	0.025	0.024
0.056	18	224.000	254.085	30.085	16.088	18.0000	1.05550	8	156.026	105.000	0.023	0.021
0.059	20	278.000	314.015	36.015	18.081	20.0000	1.09260	8	183.005	123.000	0.020	0.019
0.069	24	402.010	452.040	50.030	22.063	24.0000	2.07930	8	254.048	171.000	0.017	0.016

Unyamezelo Lwemilinganiselo yokuba Indlu enamacala amabini Engatyiwayo steel Pipe

Ubungakanani bemibhobho obusemthethweni up to 4 = ± 0.79 mm \| 5 thru 8 = + 1.58 mm / - 0.79 mm 10 thru 18 = + 2.37 mm / - 0.79 mm \| 20 thru 24 = + 3.18 mm / - 0.79 mm
Ubukhulu bodonga All Diameters = - 12.5% + tolerance not specified	Ubude + 6.40 mm / - 0 mm	Ubunzima Weight = + 10% / - 1.5%

Indlu enamacala amabini Engatyiwayo steel Pipe Itshathi yobunzima

oUTSIDE DIA MM	WALL THK MM	IN.	SCHEDULE	KG/M
13.72	1.65	1/4	ishumi se-sekondi	0.50
13.72	2.24	1/4	amashumi amane	0.64
13.72	3.02	1/4	Amashumi asibhozo	0.81
17.15	1.65	3/8	ishumi se-sekondi	0.64
17.15	2.31	3/8	amashumi amane	0.86
17.15	3.20	3/8	Amashumi asibhozo	1.12
21.34	2.11	1/2	ishumi se-sekondi	1.02
21.34	2.77	1/2	amashumi amane	1.29
21.34	3.73	1/2	Amashumi asibhozo	1.65
26.67	2.11	3/4	ishumi se-sekondi	1.30
26.67	2.87	3/4	amashumi amane	1.71
26.67	3.91	3/4	Amashumi asibhozo	2.23
33.40	2.77	1	ishumi se-sekondi	2.13
33.40	3.38	1	amashumi amane	2.54
33.40	4.55	1	Amashumi asibhozo	3.29
33.40	6.352)	1	160	4.30
42.16	2.77	Nye nesiqingatha sesine	ishumi se-sekondi	2.73
42.16	3.56	Nye nesiqingatha sesine	amashumi amane	3.44
42.16	4.85	Nye nesiqingatha sesine	Amashumi asibhozo	4.53
42.16	6.352)	Nye nesiqingatha sesine	160	5.69
48.26	2.77	1½	ishumi se-sekondi	3.16
48.26	3.68	1½	amashumi amane	4.11
48.26	5.08	1½	Amashumi asibhozo	5.49
60.33	2.77	2	ishumi se-sekondi	3.99
60.33	3.91	2	amashumi amane	5.52
60.33	5.54	2	Amashumi asibhozo	7.60
60.33	8.742)	2	160	11.29
73.03	3.05	2½	ishumi se-sekondi	5.35
73.03	5.16	2½	amashumi amane	8.77
73.03	7.01	2½	Amashumi asibhozo	11.59
88.90	3.05	3	ishumi se-sekondi	6.56
88.90	5.49	3	amashumi amane	11.47
88.90	7.62	3	Amashumi asibhozo	15.51
88.90	11.132)	3	160	21.67
101.60	3.05	3½	ishumi se-sekondi	7.53
101.60	5.74	3½	amashumi amane	13.78
101.60	8.08	3½	Amashumi asibhozo	18.92
114.30	3.05	4	ishumi se-sekondi	8.50
114.30	6.02	4	amashumi amane	16.32
114.30	8.56	4	Amashumi asibhozo	22.67
114.30	13.492)	4	160	34.05
141.30	6.55	5	amashumi amane	22.10
141.30	9.53	5	Amashumi asibhozo	31.44
141.30	15.882)	5	160	49.87
168.28	3.4	6	ishumi se-sekondi	14.04
168.28	7.11	6	amashumi amane	28.69
168.28	10.97	6	Amashumi asibhozo	43.21
168.28	14.27	6	120	54.75
168.28	18.262)	6	160	68.59
219.08	8.18	8	amashumi amane	43.20
219.08	12.7	8	Amashumi asibhozo	65.63
219.08	18.23	8	120	91.30
219.08	23.012)	8	160	112.97

Pressure Rating of 2205 duplex stainless pipe

duplex 2205 pipe pressure rating

Pipe O.D. (In.)	Wall Thickness Of Pipe (Inches)
	.028	.035	.049	.065	.083	.095	.109	.120
	Working Pressure (Psig)
1/8	7900	10100
1/4	3700	4800	7000	9500
5/16		3700	5400	7300
3/8		3100	4400	6100
1/2		2300	3200	4400
3/4			2200	3000	4000	4600
1				2200	2900	3400	3900	4300

Duplex Steel Pipe Price List-2023

Pipe OD I-millimeter	Pipe WT I-millimeter	in.	Sch	Price/Kg
13.72	1.65	44565	ishumi se-sekondi	390
13.72	2.24	44565	amashumi amane	392
13.72	3.02	44565	Amashumi asibhozo	394
17.15	1.65	44628	ishumi se-sekondi	396
17.15	2.31	44628	amashumi amane	398
17.15	3.2	44628	Amashumi asibhozo	400
21.34	2.11	44563	ishumi se-sekondi	402
21.34	2.77	44563	amashumi amane	404
21.34	3.73	44563	Amashumi asibhozo	406
26.67	2.11	44624	ishumi se-sekondi	408
26.67	2.87	44624	amashumi amane	410
26.67	3.91	44624	Amashumi asibhozo	412
33.4	2.77	1	ishumi se-sekondi	414
33.4	3.38	1	amashumi amane	416
33.4	4.55	1	Amashumi asibhozo	418
33.4	6.352)	1	160	420
42.16	2.77	Nye nesiqingatha sesine	ishumi se-sekondi	422
42.16	3.56	Nye nesiqingatha sesine	amashumi amane	424
42.16	4.85	Nye nesiqingatha sesine	Amashumi asibhozo	426
42.16	6.352)	Nye nesiqingatha sesine	160	428
48.26	2.77	1½	ishumi se-sekondi	430
48.26	3.68	1½	amashumi amane	432
48.26	5.08	1½	Amashumi asibhozo	434
60.33	2.77	2	ishumi se-sekondi	436
60.33	3.91	2	amashumi amane	438
60.33	5.54	2	Amashumi asibhozo	440
60.33	8.742)	2	160	442
73.03	3.05	2½	ishumi se-sekondi	444
73.03	5.16	2½	amashumi amane	446
73.03	7.01	2½	Amashumi asibhozo	448
88.9	3.05	3	ishumi se-sekondi	450
88.9	5.49	3	amashumi amane	452
88.9	7.62	3	Amashumi asibhozo	454
88.9	11.132)	3	160	456
101.6	3.05	3½	ishumi se-sekondi	458
101.6	5.74	3½	amashumi amane	460
101.6	8.08	3½	Amashumi asibhozo	462
114.3	3.05	4	ishumi se-sekondi	464
114.3	6.02	4	amashumi amane	466
114.3	8.56	4	Amashumi asibhozo	468
114.3	13.492)	4	160	470
141.3	6.55	5	amashumi amane	472
141.3	9.53	5	Amashumi asibhozo	474
141.3	15.882)	5	160	476
168.28	3.4	6	ishumi se-sekondi	478
168.28	7.11	6	amashumi amane	480
168.28	10.97	6	Amashumi asibhozo	482
168.28	14.27	6	120	484
168.28	18.262)	6	160	486
219.08	8.18	8	amashumi amane	488
219.08	12.7	8	Amashumi asibhozo	490
219.08	18.23	8	120	492
219.08	23.012)	8	160	494

Ngaphambili: Astm A790 ipayipi yentsimbi engatyiwayo ye-Duplex engenamthungo