Seamless Pipes & Tubes Manufacturer

Seamless Pipes & Tubes

Z-Lok offers high-quality Seamless Pipes & Tubes designed for applications where strength, reliability, and leak-free performance are essential. Manufactured without welded joints, these pipes and tubes provide excellent resistance to pressure and demanding operating conditions. They are widely used in hydraulic systems, instrumentation, oil & gas, chemical processing, power plants, and other industrial applications.

Duplex Stainless Steel Pipe Specification

Specifications	ASTM A928 / ASME SA 928 ASTM A999 / ASME SA 999 astm a790 duplex 2205, SA 789 alloy 2205, a790 gr 2205 ASTM A790 / ASME SA 790
Pipe Thickness	0.3mm – 50 mm
Pipe Standard	EN, ASTM, ASME AISI, GB, JIS, DIN Duplex 2205 Pipe Supplier
Duplex 2205 Seamless Pipe Outer Diameter	Sizes up to 12” NB/ 6.00 – 250 mm OD
Duplex 2205 Welded Pipe size	5.0 to 1219.2 mm
Duplex 2205 Welded Tube Size	6.35 – 152 mm OD
Duplex 2205 EFW Pipe size	5.0 – 1219.2 mm
Duplex 2205 tubing wall thickness	0.0020″ to 0.0220″ (custom wall thicknesses available)
Duplex 2205 Seamless Tube Size	15 NB – 150 NB IN/ 3.35 To 101.6 mm OD,
Duplex 2205 Pipe & Tube Finish	AP (Annealed & Pickled), Polished, MF, BA (Bright & Annealed), NO.4, NO.1, BA, 2B, 8K, HL, Mirror finish,etc
Pipe & Tube Swg & Bwg	12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg, 18 Swg.
Duplex 2205 Pipe Schedule	SCH10, SCH 5, SCH 80, SCH 40, , SCH 160, SCH 80S, SCH XS, SCH XXS
Duplex 2205 Pipe & Tube Form	Hydraulic, Round, Rectangular, Hollow, Pan Cake Coils, Square, Coiled, “U” Shape, Straight Pipes etc.
Duplex 2205 Pipe & Tube Length	Standard & Cut length, Single and Double Random,
Duplex 2205 Pipe & Tube Type	Duplex 2205 ERW/ Seamless / Welded / EFW / CDW /Fabricated / CEW/ DOM Pipe
Pipe Value Added Service	as per required Size & Length Draw & Expansion , Pickled Bending and Polish (Electro & Commercial) Annealed, Machining Etc.
Duplex 2205 Tube Application	Oil Tube, Boiler and Heatexchanger, Gas Tube, Fluid Tube
Duplex 2205 Pipe & Tube End	Beveled End, Plain End, Treaded Pipe.
Pipe Marking	marked as follows All Duplex 2205 Pipes : Standard, Grade, Thickness, OD, Heat No. (Or according to the customer’s request.), Length
Material Test Certificates (MTC)	100% Radiography Test Report, Raw Materials CertificateMaterial Test Certificates (MTC) as per EN 10204 3.1, EN 10204/3.1B and EN 10204 3.2Manufacturer Test CertificateForm A for Generalized System of Preferences (GSP)Fumigation CertificatesThird Party Inspection ReportHeat Treatment ChartsDuplex 2205 Tubes HS Code Commercial InvoiceLaboratory Test Certificate from Govt. Approved Lab.
Specialized in	Duplex 2205 Heat Exchanger & Condenser Tubes Duplex 2205 Capillary Tube & Other Odd Size Large Diameter Duplex 2205 Pipe

Duplex Stainless Steel Pipe

QUICK RELEASE COUPLING

QUICK DISCONNECT COUPLING

PUSH PULL COUPLINGS

QUICK COUPLINGS

HYDRAULIC QUICK RELEASE COUPLING

QRC

QDC COUPLING

DIN COUPLINGS

Duplex 2205 Pipe

Werkstoff Nr. 1.4462 Square Pipe

Duplex S31803 Seamless Pipe

Duplex 2205 Tube

Werkstoff Nr. 1.4462 Square Pipe

Duplex Stainless Steel Pipe

SAF 2205 Rectangular Pipe

ASME SA789 Duplex ERW Pipe

Duplex Steel Hollow Pipe

Duplex 2205 Tube Size chart

Wall	Duplex Tube Sizes ( OD)
.010	1/8″, 1/16″, 3/16″
.020	1/8″, 1/16″, 3/16″, 1/4″, 5/16″, 3/8″
.012	1/8″
.016	1/8″, 3/16″
.028	1/8″, 3/16″, 5/16″,1/4″, 3/8″, 1/2″, 3/4″, 1″, 2″, 1 1/2″
.035	1/8″, 3/16″, 5/16″,1/4″, 3/8″, 7/16″, 1/2″, 16″, 5/8″, 3/4″, 7/8″, 1 1/4″, 1″, 1 5/8″, 2″, 1 1/2″, 2 1/4″
.049	3/16″, 1/4″, 5/16″, 3/8″, 1/2″, 16″, 5/8″, 3/4″, 7/8″, 1″, 1 1/8″, 1 1/4″, 1 5/8″, 2″, 1 1/2″, 2 1/4″
.065	1/4″, 5/16″, 3/8″, 1/2″, 16″, 5/8″, 3/4″, 7/8″, 1 1/4″, 1″, 1 1/2″, 1 5/8″, 1 3/4″, 2″, 3″, 2 1/2″
.083	1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1 1/4″, 1″, 1 1/2″, 1 5/8″, 1 7/8″, 2 1/2″ ,2″, 3″
.095	1/2″, 5/8″, 1 1/4″, 1″, 2″, 1 1/2″
.250	3″
.120	1/2″, 5/8″, 3/4″, 7/8″, 1 1/4″, 1″, 2″, 1 1/2″, 2 1/4″, 3″, 2 1/2″
.375	3 1/2″
.134	1″
.109	1/2″, 3/4″, 1 1/4″, 1″, 2″, 1 1/2″
.125	3/4″, 1 1/4″, 1″, 2″, 1 1/2″, 3″, 3 1/4″

SAF 2205 Pipe Weight Chart

NPS	Outside Diameter		Wall Thickness			Weight	Weight
NPS	inch	milimeter	inch	milimeter	Schedule	kg/Mtr	Lb/ft
1/2″	0.0840	21	0.0109	2.0769	40 STD	1.0268	0.0851
			0.0147	3.0734	80 STD	1.0621	1.0088
3/4″	1.0050	27	0.0113	2.0870	40 STD	1.0684	1.0131
			0.0154	3.0912	80 STD	2.0195	1.0474
1″	1.0315	33	0.0133	3.0378	40 STD	2.0501	1.0679
			0.0179	4.0547	80 STD	3.0325	2.0172
1 1/4″	1.0660	42	0.0140	3.0556	40 STD	3.0385	2.0273
			0.0191	4.0851	80 STD	4.0464	2.0997
1 1/2″	1.0900	48	0.0145	3.0683	40 STD	4.0048	2.0718
			0.0200	5.0080	80 STD	5.0409	3.0361
2″	2.0375	60	0.0154	3.0912	40 STD	5.0441	3.0653
			0.0218	5.0537	80 STD	7.0480	5.0022
2 1/2″	2.0875	73	0.0203	5.0516	40 STD	8.0629	5.0793
			0.0276	7.0010	80 STD	11.0411	7.0661
3″	3.0500	89	0.0216	5.0486	40 STD	11.0284	7.0576
			0.0300	7.0620	80 STD	15.0272	10.0253
4″	4.0500	114	0.0237	6.0020		16.0073	10.0790
			0.0337	8.0560		22.0318	14.0983
6″	6.0625	168	0.0188	4.0775		19.0252	12.0924
			0.0203	5.0516		20.0739	13.0923
			0.0219	5.0563		22.0318	14.0983
			0.0250	6.0350		25.0354	17.0021
			0.0280	7.0112	40 STD	58.0263	18.0974
			0.0312	7.0925		31.0334	21.0036
			0.0375	9.0525		37.0285	25.0031
			0.0432	10.0973	80 XHY	42.0561	28.0573
			0.0500	12.0700		48.0719	32.0708
8″	8.0625	219	0.0188	4.0775		25.0233	16.0940
			0.0203	5.0156		27.0198	18.0259
			0.0219	5.0563		29.0286	19.0661
			0.0250	6.0350	20	33.0308	22.0361
			0.0277	7.0036	30	36.0786	24.0696
			0.0322	8.0179	40	42.0352	28.0554
			0.0375	9.0525		49.0216	33.0041
			0.0406	10.0312	60	53.0085	35.0638
			0.0500	12.0700	80 XHY	64.0627	43.0388
10″	10.0750	273	0.0188	4.0775		31.0588	21.0207
			0.0219	5.0563		36.0689	24.0631
			0.0250	6.0350	20	41.0759	28.0035
			0.0307	7.0798	30	51.0002	34.0240
			0.0344	8.0738		56.0946	38.0231
			0.0365	9.0271	40 STD	63.0301	40.0483
			0.0438	11.0125		71.0852	48.0238
			0.0500	12.0700	60 XHY	81.0530	54.0735
			0.0594	15.0088	80	95.0969	64.0429
12″	12.0750	324	0.0188	4.0775		37.0570	25.0222
			0.0219	5.0563		43.0657	29.0309
			0.0250	6.0350		49.0713	33.0375
			0.0281	7.0137		55.0739	37.0420
			0.0312	7.0925		61.0735	41.0445
			0.0375	9.0525		73.0824	49.0562
			0.0406	10.0312		79.0727	53.0525
			0.0500	12.0700		97.0438	65.0415
			0.0562	14.0275		108.0966	73.0154
14″	14.0000	356	0.0188	4.0775		41.0308	27.0732
			0.0219	5.0563		48.0012	32.0233
			0.0250	6.0350	20	54.0685	36.0713
			0.0281	7.0137		61.0327	41.0172
			0.0312	7.0925		67.0939	45.0611
			0.0375	9.0525	STD	81.0281	54.0568
			0.0438	11.0125	40	94.0498	63.0441
			0.0500	12.0700	XHY	107.0381	72.0090
			0.0625	15.0875		132.0983	89.0278
16”	16.0000	406	0.0188	4.0775		47.0290	21.0748
			0.0219	5.0563		54.0980	36.0910
			0.0250	6.0350	10	62.0639	42.0053
			0.0281	7.0137		70.0268	47.0174
			0.0312	7.0925	20	77.0866	52.0275
			0.0344	8.0738		85.0677	57.0519
			0.0375	9.0525	30STD	93.0213	62.0578
			0.0438	11.0125		108.0433	72.0797
			0.0500	12.0700	40XHY	123.0289	82.0770
18″	18.0000	457	0.0219	5.0563		61.0948	41.0588
			0.0250	6.0350		70.0593	47.0393
			0.0281	7.0137		79.0208	53.0176
			0.0312	7.0925	20	87.0792	58.0939
			0.0375	9.0525	STD	105.0144	70.0588
			0.0438	11.0125	30	122.0369	82.0152
			0.0500	12.0700	XHY	139.0198	93.0450
			0.0562	14.0275	40	155.0904	104.0666
			0.0625	15.0875		172.0754	115.0978
20″	20.0000	508	0.0250	6.0350		78.0547	52.0733
			0.0282	7.0163		88.0458	59.0386
			0.0312	7.0925		97.0719	65.0604
			0.0375	9.0525	20 STD	117.0075	78.0598
			0.0438	11.0125		136.0305	91.0508
			0.0500	12.0700	30 XHY	155.0106	104.0130
			0.0594	15.0088	40	183.0378	123.0110
			0.0625	15.0875		192.0640	129.0328
			0.0688	17.0475		211.0368	141.0901
24″	24.0000	610	0.0250	6.0350		94.0456	63.0413
			0.0281	7.0137		106.0029	71.0183
			0.0312	7.0925		117.0573	18.0932
			0.0375	9.0525	20 STD	140.0938	64.0618
			0.0438	11.0125		164.0176	110.0219
			0.0500	12.0700	XHY	186.0923	125.0490
			0.0625	15.0875		232.0410	156.0028
			0.0688	17.0475	40	255.0148	171.0293
			0.0750	19.0050		277.0401	186.0233
30″	30.0000	762	0.0250	6.0350		118.0318	79.0433
			0.0281	7.0137		132.0851	89.0189
			0.0312	7.0925	10	147.0353	98.0925
			0.0375	9.0525	STD	176.0731	118.0648
			0.0438	11.0125		205.0983	138.0286
			0.0500	12.0700	20 XHY	234.0647	157.0530
			0.0625	15.0875	30	292.0066	196.0078
			0.0688	17.0475		320.0817	215.0380
			0.0750	19.0050		348.0988	234.0293
36″	36.0000	914	0.0250	6.0350		142.0180	95.0453
			0.0281	7.0137		159.0672	107.0196
			0.0312	7.0925	10	177.0133	118.0918
			0.0375	9.0525	STD	215.0525	142.0678
			0.0438	11.0125		247.0790	166.0353
			0.0500	12.0700	20 XHY	282.0372	198.0570
			0.0625	15.0875		351.0723	236.0128
			0.0688	17.0475		386.0487	259.0467
			0.0750	19.0050		420.0576	282.0353
42″	42.0000	1067	0.0312	7.0925		206.0914	138.0911
			0.0375	9.0525	STD	248.0319	166.0708
			0.0500	12.0700	XHY	33.0097	221.0610
			0.0750	19.0050		492.0163	330.0413
48″	48.0000	1219	0.0375	9.0525	STD	284.0112	190.0738
			0.0438	11.0125		331.0404	222.0487
			0.0500	12.0700	XHY	377.0822	253.0650
			0.0750	19.0050		563.0750	378.0473
			0.0875	22.0225		655.0969	440.0383

Duplex Stainless Steel Pipe Schedule Chart

1/4″ IPS(.0540″OD)	4″ IPS(4.0500″OD)
SCH 40, 10, 80	SCH 40, 10, 80, XXH, 160
1/8″ IPS(.0405″OD)	3 1/2″ IPS( 4.0000″OD)
SCH 40, 80	SCH 40, 10, 80, XXH, 160
1/2″ IPS(.0840″OD)	6″ IPS(6.0625″OD)
SCH 5, 40, 10, 80, XXH, 160	SCH 5, 40, 10, 80, 120, XXH, 160
3/8″ IPS(.0675″OD)	5″ IPS( 5.0563″OD)
SCH 40, 10, 80	SCH 40, 10, 80, XXH, 160
1″ IPS:(1.0315′OD)	10″ IPS(10.0750″OD)
SCH 5, 40, 10, 80, XXH, 160	SCH 10, 20, 40, 80 (.0500), TRUE 80(.0500)
2 1/2″ IPS(2.0875″OD)	18″ IPS (18.0000″OD)
SCH 40, 10, 80, XXH, 160	SCH-40 (.0375)
3/4″ IPS(1.0050″OD)	8 ” IPS(8.0625″OD)
SCH 40, 10, 80, XXH, 160	SCH 5, 40, 10, 80, 120, XXH, 160
1-1/4″ IPS(1.0660″OD)	12″ IPS(12.0750″OD)
SCH 40, 10, 80, XXH, 160	SCH 10, 20, 40(.0375), TRUE40(.0406), SCH80(.0500)
2″ IPS(2.0375″OD)	16″ IPS(16.0000″OD)
SCH 40, 10, 80, XXH, 160	SCH10(.0188), SCH40(.0375)
1-1/2″ IPS(1.0900″OD)	14″ IPS(14.0000″OD)
SCH 40, 10, 80, XXH, 160	SCH10 (.0188), SCH40 (.0375)
3″ IPS( 3.0500″OD)
SCH 5, 40, 10, 80, XXH, 160

Duplex Steel Pipe Size chart

OD mm	Kg/m	in.	WT mm	Sch
13.072	0.050	1/4	1.065	10S
13.072	0.064	1/4	2.024	40S
13.072	0.081	1/4	3.002	80S
17.015	0.064	3/8	1.065	10S
17.015	0.086	3/8	2.031	40S
17.015	1.012	3/8	3.020	80S
21.034	1.002	1/2	2.011	10S
21.034	1.029	1/2	2.077	40S
21.034	1.065	1/2	3.073	80S
26.067	1.030	3/4	2.011	10S
26.067	1.071	3/4	2.087	40S
26.067	2.023	3/4	3.091	80S
33.040	2.013	1	2.077	10S
33.040	2.054	1	3.038	40S
33.040	3.029	1	4.055	80S
33.040	4.030	1	6.0352)	160
42.016	2.073	1¼	2.077	10S
42.016	3.044	1¼	3.056	40S
42.016	4.053	1¼	4.085	80S
42.016	5.069	1¼	6.0352)	160
48.026	3.016	1½	2.077	10S
48.026	4.011	1½	3.068	40S
48.026	5.049	1½	5.008	80S
60.033	3.099	2	2.077	10S
60.033	5.052	2	3.091	40S
60.033	7.060	2	5.054	80S
60.033	11.029	2	8.0742)	160
73.003	5.035	2½	3.005	10S
73.003	8.077	2½	5.016	40S
73.003	11.059	2½	7.001	80S
88.090	6.056	3	3.005	10S
88.090	11.047	3	5.049	40S
88.090	15.051	3	7.062	80S
88.090	21.067	3	11.0132)	160
101.060	7.053	3½	3.005	10S
101.060	13.078	3½	5.074	40S
101.060	18.092	3½	8.008	80S
114.030	8.050	4	3.005	10S
114.030	16.032	4	6.002	40S
114.030	22.067	4	8.056	80S
114.030	34.005	4	13.0492)	160
141.030	22.010	5	6.055	40S
141.030	31.044	5	9.053	80S
141.030	49.087	5	15.0882)	160
168.028	14.004	6	3.04	10S
168.028	28.069	6	7.011	40S
168.028	43.021	6	10.097	80S
168.028	54.075	6	14.027	120
168.028	68.059	6	18.0262)	160
219.008	43.020	8	8.018	40S
219.008	65.063	8	12.07	80S
219.008	91.030	8	18.023	120
219.008	112.097	8	23.0012)	160

Duplex S31803 Seamless Pipe Pressure Rating

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

Werkstoff Nr. 1.4462 Pipe Mechanical Analysis

Pipe Melting Point	Pipe Density	2205 Duplex SS Pipe Tensile Strength	Yield Strength (0.2%Offset)	Elongation
1350 °C (2460 °F)	7.8 g/cm3	Psi – 116000 , MPa – 800	Psi – 80000 , MPa – 550	15 %

Chemical Structure of Duplex SS Pipe

P	N	Si	Mn	C	Fe	Mo	S	Cr	Ni
0.02	0.03	2.0	3.0 – 3.5	1.0	0.03	22.0 – 23.0	0.14 – 0.2	4.5 – 6.5	Bal

Duplex 2205 Tubing Equivalent Grades

WERKSTOFF NR.	PIPE STANDARD	UNS
1.4462 / 1.4462	Duplex 2205 Pipe	S31803 / S32205