Alloy 20 Pipe/Tube

ASME SB 729 uns n08020 Seamless Tube and carpenter 20 Tubing supplier in India

Alloy 20 Tube Specification

We can also cut, thread, and groove DIN 2.4660 Tubes to meet your specifications.
Specifications	ASTM B729 / SB729
ASTM B729 UNS N08020 Tubes Size	15 NB to 150 NB IN
DIN 2.4660 Tubing Wall Thickness	.035″ -.095′, (special wall thicknesses available)
Specialized in	Large Diameter Size
Carpenter 20 Tubing Type	Seamless / ERW / Welded / Fabricated / Hollow
UNS N08020 Tubes Schedule	SCH5, SCH10, SCH40, STD, SCH80, SCH160
Incoloy Alloy 20 Tubes Condition	Hot-Finished, Annealed, Cold-Drawn, Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Nickel Alloy 8020 Tubes Form	Condenser, Square, Hydraulic, Heat-Exchanger, U-Tube, Coiled, Round, Capillary, Boiler, Straight, Rectangular
20cb3 Alloy 20 Tubes Length	Single Random, Double Random & Cut Length.
End	Plain End, Beveled End, Treaded.
Marking	All Alloy 20 Stainless Steel Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Material Test Certificates (MTC)	Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
Alloy 20 Tube manufacturers	Sumitomo Metals, Japan Nippon Steel Corporation, Japan Kobe Special Tube, Japan Sanyo Special Steel, Japan Tubacex Tubos Inoxidables S.A., Spain Schoeller Bleckmann, Austria Seah Steel Corporation, Korea

ASTM B729 UNS N08020 Seamless Tube

Outside diameter	Wall thickness	Length
5.0 ~ 203.2mm	As per requirement	Upto 6 Meters

DIN 2.4660 Welded Tube

Outside diameter	Wall thickness	Length
5.0 ~ 1219.2mm	1.0 ~ 15.0 mm	Upto 6 Meters

Carpenter 20 Tube Types

UNS N08020 Tube Nominal Tube Wall Thickness & Dimensions

ASTM B729 UNS N08020 Tubes (O.D.)	DIN 2.4660 Tube Gauge
	BWG 00	BWG 0	BWG 1	BWG 2	BWG 3	BWG 4	BWG 5	BWG 6	BWG 7	BWG 8	BWG 9	BWG 10	BWG 11	BWG 12	BWG 13	BWG 14	BWG 15	BWG 16	BWG 17	BWG 18	BWG 19	BWG 20	BWG 21	BWG 22	BWG 23	BWG 24
	Alloy 20 Tubing Wall Thickness (Inches)
	0.380	0.340	0.300	0.284	0.259	0.238	0.220	0.203	0.180	0.165	0.148	0.134	0.120	0.109	0.095	0.083	0.072	0.065	0.058	0.049	0.042	0.035	0.032	0.028	0.025	0.022
	Carpenter 20 Tubes Inside Dia
1/4″	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	0.010	0.032	0.060	0.084	0.106	0.120	0.134	0.152	0.166	0.180	0.186	0.194	0.200	0.206
3/8″	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	0.015	0.045	0.079	0.107	0.135	0.157	0.185	0.209	0.231	0.245	0.259	0.277	0.291	0.305	0.311	0.319	0.325	0.331
1/2″	N/A	N/A	N/A	N/A	N/A	0.024	0.060	0.094	0.140	0.170	0.204	0.232	0.260	0.282	0.310	0.334	0.356	0.370	0.384	0.402	0.416	0.430	0.436	0.444	0.450	0.456
5/8″	N/A	N/A	0.025	0.057	0.107	0.149	0.185	0.219	0.265	0.295	0.329	0.357	0.385	0.407	0.435	0.459	0.481	0.495	0.509	0.527	0.541	0.555	0.561	0.569	0.575	0.581
3/4″	N/A	0.070	0.150	0.182	0.232	0.274	0.310	0.344	0.390	0.420	0.454	0.482	0.510	0.532	0.560	0.584	0.606	0.620	0.634	0.652	0.666	0.680	0.686	0.694	0.700	0.706
7/8″	0.115	0.195	0.275	0.307	0.357	0.399	0.435	0.469	0.515	0.545	0.579	0.607	0.635	0.657	0.685	0.709	0.731	0.745	0.759	0.777	0.791	0.805	0.811	0.819	0.825	0.831
1″	0.240	0.320	0.400	0.432	0.482	0.524	0.560	0.594	0.640	0.670	0.704	0.732	0.760	0.782	0.810	0.834	0.856	0.870	0.884	0.902	0.916	0.930	0.936	0.944	0.950	0.956
1 1/8″	0.365	0.445	0.525	0.557	0.607	0.649	0.685	0.719	0.765	0.795	0.829	0.857	0.885	0.907	0.935	0.959	0.981	0.995	1.009	1.027	1.041	1.055	1.061	1.069	1.075	1.081
1 1/4″	0.490	0.570	0.650	0.682	0.732	0.774	0.810	0.844	0.890	0.920	0.954	0.982	1.010	1.032	1.060	1.084	1.106	1.120	1.134	1.152	1.166	1.180	1.186	1.194	1.200	1.206
1 1/2″	0.740	0.820	0.900	0.932	0.982	1.024	1.060	1.094	1.140	1.170	1.204	1.232	1.260	1.282	1.310	1.334	1.356	1.370	1.384	1.402	1.416	1.430	1.436	1.444	1.450	1.456
1 3/4″	0.990	1.070	1.150	1.182	1.232	1.274	1.310	1.344	1.390	1.420	1.454	1.482	1.510	1.532	1.560	1.584	1.606	1.620	1.634	1.652	1.666	1.680	1.686	1.694	1.700	1.706
2″	1.240	1.320	1.400	1.432	1.482	1.524	1.560	1.594	1.640	1.670	1.704	1.732	1.760	1.782	1.810	1.834	1.856	1.870	1.884	1.902	1.916	1.930	1.936	1.944	1.950	1.956
2 1/4″	1.490	1.570	1.650	1.682	1.732	1.774	1.810	1.844	1.890	1.920	1.954	1.982	2.010	2.032	2.060	2.084	2.106	2.120	2.134	2.152	2.166	2.180	2.186	2.194	2.200	2.206
2 1/2″	1.740	1.820	1.900	1.932	1.982	2.024	2.060	2.094	2.140	2.170	2.204	2.232	2.260	2.282	2.310	2.334	2.356	2.370	2.384	2.402	2.416	2.430	2.436	2.444	2.450	2.456
2 3/4″	1.990	2.070	2.150	2.182	2.232	2.274	2.310	2.344	2.390	2.420	2.454	2.482	2.510	2.532	2.560	2.584	2.606	2.620	2.634	2.652	2.666	2.680	2.686	2.694	2.700	2.706
3″	2.240	2.320	2.400	2.432	2.482	2.524	2.560	2.594	2.640	2.670	2.704	2.732	2.760	2.782	2.810	2.834	2.856	2.870	2.884	2.902	2.916	2.930	2.936	2.944	2.950	2.956
3 1/4″	2.490	2.570	2.650	2.682	2.732	2.774	2.810	2.844	2.890	2.920	2.954	2.982	3.010	3.032	3.060	3.084	3.106	3.120	3.134	3.152	3.166	3.180	3.186	3.194	3.200	3.206
3 1/2″	2.740	2.820	2.900	2.932	2.982	3.024	3.060	3.094	3.140	3.170	3.204	3.232	3.260	3.282	3.310	3.334	3.356	3.370	3.384	3.402	3.416	3.430	3.436	3.444	3.450	3.456
3 3/4″	2.990	3.070	3.150	3.182	3.232	3.274	3.310	3.344	3.390	3.420	3.454	3.482	3.510	3.532	3.560	3.584	3.606	3.620	3.634	3.652	3.666	3.680	3.686	3.694	3.700	3.706
4″	3.240	3.320	3.400	3.432	3.482	3.524	3.560	3.594	3.640	3.670	3.704	3.732	3.760	3.782	3.810	3.834	3.856	3.870	3.884	3.902	3.916	3.930	3.936	3.944	3.950	3.956
4 1/4″	3.490	3.570	3.650	3.682	3.732	3.774	3.810	3.844	3.890	3.920	3.954	3.982	4.010	4.032	4.060	4.084	4.106	4.120	4.134	4.152	4.166	4.180	4.186	4.194	4.200	4.206
4 1/2″	3.740	3.820	3.900	3.932	3.982	4.024	4.060	4.094	4.140	4.170	4.204	4.232	4.260	4.282	4.310	4.334	4.356	4.370	4.384	4.402	4.416	4.430	4.436	4.444	4.450	4.456
4 3/4″	3.990	4.070	4.150	4.182	4.232	4.274	4.310	4.344	4.390	4.420	4.454	4.482	4.510	4.532	4.560	4.584	4.606	4.620	4.634	4.652	4.666	4.680	4.686	4.694	4.700	4.706
5″	4.240	4.320	4.400	4.432	4.482	4.524	4.560	4.594	4.640	4.670	4.704	4.732	4.760	4.782	4.810	4.834	4.856	4.870	4.884	4.902	4.916	4.930	4.936	4.944	4.950	4.956
5 1/4″	4.490	4.570	4.650	4.682	4.732	4.774	4.810	4.844	4.890	4.920	4.954	4.982	5.010	5.032	5.060	5.084	5.106	5.120	5.134	5.152	5.166	5.180	5.186	5.194	5.200	5.206

Incoloy Alloy 20 Hydraulic Tube Burst Pressure

(Barlow’s Formula)

P = (2ST÷D) (45,000 PSI Min Tensile Stress)
P = Burst Pressure
S = 45,000 lbs. PSI Tensile Strength
T = Nominal Wall Thickness
D = OD/ Outside Diameter

1/4″ x 0.035 – 12,600	5/8″ x 0.083 – 11,950	1-1/8″ x 0.065 – 5,200
1/4 x 0.049 – 17,640	3/4 x 0.035 – 4,200	1-1/8″ x 0.083 – 6,640
5/16″ x 0.035 – 10,080	3/4″ x 0.049 – 5,880	1-1/8 x 0.95 – 7,600
5/16 x 0.049 – 14,110	3/4 x 0.065 – 7,800	1-1/8 x 0.109 – 8,720
3/8″ x 0.035 – 8,400	3/4″ x 0.083 – 9,960	1-1/4″ x 0.065 – 4,680
3/8 x 0.049 – 11,760	3/4 x 0.095 – 11,400	1-1/4 x 0.083 – 5,975
3/8″ x 0.065 – 15,600	3/4″ x 0.109 – 13,080	1-1/4 x 0.095 – 6,840
7/16 x 0.035 – 7,200	7/8 x 0.049 – 5,040	1-1/4″ x 0.109 – 7,848
7/16″ x 0.049 – 10,080	7/8″ x 0.065 – 6,685	1-1/4 x 0.120 – 8,640
7/16 x 0.065 – 13,370	7/8 x 0.083 – 8,535	1-1/2″ x 0.083 – 4,980
1/2″ x 0.035 – 6,300	7/8″ x 0.095 – 9,770	1-1/2 x 0.095 – 5,700
1/2 x 0.049 – 8,820	1″ x 0.049 – 4,410	1-1/2″ x 0.109 – 6,540
1/2″ x 0.065 – 11,700	1″ x 0.065 – 5,850	1-1/2 x 0.120 – 7,200
5/8 x 0.035 – 5,040	1″ x 0.083 – 7,470	2″ x 0.134 – 6,030
5/8″ x 0.049 – 7,055	1″ x 0.095 – 8,550	2″ x 0.188 – 8,460
5/8 x 0.065 – 9,360	1″ x 0.095 – 8,550	2″ x 0.188 – 8,460

Note: To compute safe working pressures, above Burst Pressures should be divided by your desired safety factor.

Nickel Alloy 8020 Tubing Chemical Composition

Alloy 20	Ni	C	Mo	Mn	Si	Fe	Cu	S	P	Cr
Alloy 20	32 – 38	0.02 max	2 – 3	1 – 2	0.7 max	Bal	3 – 4	0.005 max	0.02 max	19 – 21

20cb3 Alloy 20 Tubes Mechanical Properties

Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
8.1 g/cm3	1443 °C (2430 °F)	Psi – 35000 , MPa – 241	Psi – 80000 , MPa – 551	30 %

Alloy 20 Stainless Steel Tube Equivalent Grades

STANDARD	UNS	WERKSTOFF NR.	AFNOR	EN	JIS	BS	GOST
Alloy 20	N08020	2.4660	Z2NCUD31-20AZ	NiCr20CuMo	–	–	–