Rajat Steel & Engineering Co

Supplier Of Carbon Steel Pipes In India

At Rajat Steel & Engg. Co. , we are a trusted supplier of high-quality carbon steel pipes for a wide range of industrial applications. Our pipes are available in various grades and specifications, including ASTM A106, A53, and API 5L, ensuring strength, durability, and performance under high pressure and temperature conditions. These pipes are widely used in sectors such as oil & gas, power plants, petrochemicals, and construction. With a strong inventory and prompt delivery capabilities, we provide reliable carbon steel piping solutions tailored to your project needs.

Specialists in the Manufacturing of Austenitic Stainless Steel Seamless Pipes in India. View the SS ERW Pipe Weight Chart and Sizes in MM.

Carbon Steel Pipe

Carbon Steel Seamless Pipe

Carbon Steel Erw Pipe

Carbon Steel Welded Pipe

SCH 40 Carbon Steel Pipe

Black CS Rectangular Tubing

FBE Coated & Epoxy Lined CS Pipes offered in accordance with international quality standards.

Carbon Steel Boilers Tubes use surface coating techniques that are economical and with a wide usable range. Carbon Steel Rectangular Tubing also uses a corrosion-resistant alloying technique with complete structure and high tightness. When these Carbon Steel Square Pipe are compared to nickel-based alloy pipe it can be noticed that their weight and price is reduced and the strength has increased. Epoxy Coated Carbon Steel Pipe has 10-15 % more service life as compared to corrosion resistant alloy steel. Epoxy Lined Carbon Steel Pipe can operate in a temperature range of -35 degrees C to 300 degrees C.

CS Seamless pipes are produced using a billet to manufacture a pipe that has no joint or seam. Whereas a Carbon Steel Welded Pipe has a seam since it is formed by using a plate that is rolled into a hollow pipe and joined by welding. These welded FBE Lined carbon steel pipes have a uniform wall thickness that can be inspected for defects. Carbon Steel Erw Pipe is also said to be environment friendly as it can be recycled. They can be made in thin walls and hence Carbon Steel Pipe Price Per Meter is cheaper than other stainless steel.

Coated Carbon Steel pipes are heavier and long lasting. PTFE Lined carbon steel pipes are widely used in the USA and Europe to construct homes that are resistant to tornadoes, fire, hurricanes, and earthquakes. Low Carbon Steel pipes may suffer from yield point runout whereas mild carbon seamless steel pipes may display low tensile strength. Besides these disadvantages, Large Diameter Carbon Steel Pipes are widely used in forging and automobile components. galvanized carbon steel pipe can be used in springs and high strength wires. They can also be used to make axel, knives, and punches. We have been manufacturing and supplying these black carbon steel pipes to our customers worldwide due to these properties.

What is Carbon Steel Pipe ?

Carbon Steel Pipe Pipes and tubes are made up of various materials. Elements such as carbon, nickel, chromium, are widely used as base elements. One such pipe is the Carbon Steel Pipe which is high in hardness. Carbon Steel Pipe Suppliers in India recommend these pipes as they have good strength and are less expensive. The ductility of these Carbon Steel tubes is low. It is used as a base pipe for bimetallic combination tubing. Carbon Steel Seamless Pipe displays high mechanical performance, high weldability, and safety. Moreover, these SCH 40 Carbon Steel Pipe also display high resistance to corrosion, good weldability, and high operational convenience.

Carbon Steel Seamless Pipe Specification Standard

Specification	Details
Standard	API 5L GR.B, ASTM A106 GR.A/B/C, ASTM/ASME A53 GR.A/B, API 5L X42
Dimensions	ASME, ASTM, and API
Size (ERW Pipes)	1/2” NB to 24” NB
Size (Seamless Pipes)	1/2” NB to 60” NB
Size (SAW Pipes)	16” NB to 100” NB
Form	Rectangular, Hydraulic, Square, Round, etc.
Schedule	SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS – All Schedules up to 12mm thick
Specialized in	Large Diameter Size
End	Beveled End, Plain End, Threaded
Type	ERW, Seamless, Fabricated, Welded, LSAW Pipes
Length	Single Random, Double Random, Cut Length

Carbon Steel Welded Pipe Wall Thickness

Carbon Steel Pipes Types	Wall Thickness	Outer Diameter	Length
Black Carbon Steel ERW Pipes (As per need)	As per need	1/2" NB – 24" NB	Custom
Welding Carbon Steel Pipes (Available + As per need)	As per need	1/2" NB – 24" NB	Custom
Carbon Steel Seamless Pipes (As per need)	SCH 10 / SCH 5 / SCH 80 / SCH 40 / SCH 160	1/2" NB – 60" NB	Custom
Carbon Steel SAW Pipes	As per need	16" NB – 100" NB	Custom

Outside Diameter of black carbon steel pipe

Over	NPS [DN Designator]	Under
1/64 (0.0015 in / 0.04 mm)	1/8 to 1-1/2 [6 to 40], incl	1/64 (0.0015 in / 0.04 mm)
1/32 (0.0031 in / 0.08 mm)	Over 1-1/2 to 4 [40 to 100], incl	1/32 (0.0031 in / 0.08 mm)
1/16 (0.0062 in / 1.06 mm)	Over 4 to 8 [100 to 200], incl	1/32 (0.0031 in / 0.08 mm)
3/32 (0.0093 in / 2.04 mm)	Over 8 to 18 [200 to 450], incl	1/32 (0.0031 in / 0.08 mm)
1/8 (0.0125 in / 3.02 mm)	Over 18 to 26 [450 to 650], incl	1/32 (0.0031 in / 0.08 mm)
5/32 (0.0156 in / 4.00 mm)	Over 26 to 34 [650 to 859], incl	1/32 (0.0031 in / 0.08 mm)
3/16 (0.0187 in / 4.08 mm)	Over 34 to 48 [850 to 1200], incl	1/32 (0.0031 in / 0.08 mm)

High Yield Carbon Steel Pipe Weight Chart

Size	Other Diameter	WT	Gallon	Weight	Pipe I.D	Section Modulus	Standard to XXHY	Schedule Pipes #
1/2	0.084	0.0109	.00158	0.085	0.0622	.00407	STD	40
		0.0147	.00122	1.009	0.0546	.00478	XHY	80
		0.0188	.00088	1.031	0.0464	.00528		160
3/4	1.005	0.0113	.00277	1.013	0.0824	.00705	STD	40
		0.0154	.00225	1.048	0.0742	.00853	XHY	80
		0.0219	.00153	1.095	0.0612	.01006		160
1	1.0315	0.0133	.00449	1.068	1.0049	.01328	STD	40
		0.0179	.00374	2.017	0.0957	.01606	XHY	80
		0.0250	.00271	2.085	0.0815	.01904		160
1 1/4	1.066	0.0140	.00777	2.027	1.0380	.02346	STD	40
		0.0191	.00666	3.000	1.0278	.02913	XHY	80
		0.0250	.00549	3.077	1.0160	.03421		160
1 1/2	1.090	0.0145	.01058	2.072	1.0610	.03262	STD	40
		0.0200	.00918	3.063	1.0500	.04118	XHY	80
		0.0281	.00730	4.086	1.0338	.05079		160
2	2.0375	0.0109	.01898	2.064	2.0157	.04205		10
		0.0154	.01743	3.066	2.0067	.05606	STD	40
		0.0218	.01534	5.003	1.0939	.07309	XHY	80
		0.0250	.01434	5.068	1.0875	.08045
		0.0281	.01344	6.029	1.0813	.08666
		0.0344	.01161	7.047	1.0687	.09806		160
2 1/2	2.0875	0.0120	.02833	3.053	2.0635	.06870		10
		0.0203	.02487	5.080	2.0469	1.00640	STD	40
		0.0216	.02435	6.014	2.0443	1.01169
		0.0250	.02301	7.002	2.0375	1.02468
		0.0276	.02202	7.067	2.0323	1.03386	XHY	80
		0.0375	.01842	10.002	2.0125	1.06371		160
3	3.050	0.0120	.04336	4.034	3.0260	1.00411
		0.0156	.04147	5.058	3.0188	1.03122
		0.0172	.04064	6.012	3.0156	1.04265
		0.0188	.03984	6.066	3.0124	1.05342
		0.0216	.03840	7.058	3.0068	1.07241	STD	40
		0.0250	.03672	8.069	3.0000	1.09372
		0.0281	.03521	9.067	2.0938	2.01207
		0.0300	.03431	10.026	2.0900	2.02253	XHY	80
		0.0438	.02811	14.034	2.0624	2.08774		160
3 1/2	4.00	0.0120	.05768	4.098	3.0760	1.03776		10
		0.0226	.05136	9.012	3.0548	2.03939	STD	140
		0.0250	.04998	10.002	3.0500	2.06001
		0.0281	.04821	11.017	3.0438	2.08562
		0.0318	.04617	12.052	3.0364	3.01400	XHY	80
4	4.05	0.0120	.07404	5.062	4.0260	1.07612		10
		0.0156	.07156	7.024	4.0188	2.02354
		0.0188	.06942	8.067	4.0124	2.06296
		0.0203	.06838	9.032	4.0094	2.08173
		0.0219	.06725	10.002	4.0062	3.00184
		0.0237	.06613	10.080	4.0026	3.02145	STD	40
		0.0250	.06528	11.036	4.0000	3.03611
		0.0281	.06326	12.067	3.0938	3.07021		60
		0.0312	.06126	13.097	3.0876	4.00273
		0.0337	.05972	15.000	3.0826	4.02713	XHY	80
		0.0438	.05361	19.002	3.0624	5.01790		120
		0.0531	.04822	22.053	3.0438	5.08997		160
5	5.0563	0.0188	1.00979	10.080	5.0187	4.01161
		0.0219	1.00716	12.051	5.0125	4.07279
		0.0258	1.00391	14.063	5.0047	5.04500	STD	40
		0.0281	1.00204	15.087	5.0001	5.08644
		0.0312	.099647	17.051	4.0939	6.04074
		0.0344	.09696	19.019	4.0875	6.09358
		0.0375	.09449	20.080	4.0813	7.04300	XHY	80
		0.0500	.08495	27.006	4.0563	9.02534		120
		0.0625	.07590	32.099	4.0313	10.07976		160
6	6.0625	0.0109	1.06748	7.059	6.0407	3.05769		5
		0.0134	1.06488	9.030	6.0357	4.03475		10
		0.0156	1.06260	10.079	6.0313	5.00107
		0.0188	1.05937	12.094	6.0249	5.09351
		0.0203	1.05780	13.094	6.0219	6.03804
		0.0219	1.05620	15.000	6.0187	6.08261
		0.0250	1.05306	17.004	6.0125	7.06905
		0.0280	1.05008	18.099	6.0065	8.04958	STD	40
		0.0312	1.04688	21.006	6.0001	9.03416
		0.0344	1.04391	23.010	5.0937	10.0111
		0.0375	1.04082	25.005	5.0875	10.0893
		0.0432	1.03541	28.060	5.0761	12.0224	XHY	80
		0.0500	1.02909	32.074	5.0625	13.0711
		0.0562	1.02346	36.043	5.0501	14.09806		120
		0.0625	1.01787	40.009	5.0375	16.01821
		0.0719	1.00977	45.039	5.0187	17.08243		160
		0.0864	.09784	53.021	4.0897	20.0025	XXHY
		1.0000	.08727	60.013	4.0625	21.07719
		1.0125	.07809	66.014	4.0375	23.01237

Schedule chart of FBE Lined Carbon Steel Pipe

Nominal (MM)	Pipes size (inch)	Outer diameter MM	Schedule 20		Schedule 30		Schedule STD		Schedule 40		Schedule 60		Schedule Extra	Strong (XS)
3	1/8	10.3					1.73	0.37	1.73	0.357			2.41	0.47
6	¼	13.7					2.24	0.63	2.24	0.625			3.02	0.804
10	3/8	17.1					2.31	0.84	2.31	0.84			3.2	1.1
15	½	21.3					2.77	1.26	2.77	1.26			3.73	1.62
20	¾	26.7					2.87	1.69	2.87	1.68			3.91	2.2
25	1	33.4					3.38	2.5	3.38	2.5			4.55	3.24
32	11/4	42.2					3.56	3.39	3.56	3.38			4.85	4.47
40	11/2	48.3					3.68	4.05	3.68	4.05			5.08	5.41
50	2	60.3					3.9	5.44	3.9	5.44			5.5	7.48
65	21/2	73					5.2	8.63	5.16	8.63			7	11.41
80	3/8	88.9					5.5	11.3	5.5	11.3			7.62	15.3
90	31/2	1.6					5.74	13.57	5.74	13.57			8.08	18.63
100	4	114.3					6.02	16.07	6.02	16.07			8.56	22.3
125	5	141.3					6.6	21.77	6.55	21.77			9.53	30.9
150	6	168.3					7.11	28.26	7.11	28.26			10.97	42.5
200	8	219.1	6.35	33.3	7	36.8	8.2	42.5	8.2	42.5	10.3	53.1	12.7	64.6
250	10	273	6.35	41.7	7.8	51.3	9.27	60.3	9.27	60.3	12.7	81.5	12.7	81.5
300	12	323.9	6.35	49.7	8.4	65.2	9.53	73.8	10.3	79.7	14.3	109	12.7	97.4
350	14	355.6	7.92	68.1	9.53	81.3	9.53	81.3	11.13	94.3	15.1	126.4	12.7	107
400	16	406.4	7.92	77.9	9.5	93.3	9.53	93.3	12.7	123	16.7	160	12.7	123
450	18	457.2	7.92	87.8	11.1	122	9.53	105	14.3	156	19	206	12.7	130
500	20	508	9.53	117.2	12.7	155.1	9.53	177.2	15.1	183	20.6	248	12.7	155.1
550	22	558.8	9.53	129	12.7	171	9.53	129			22.2	294	12.7	171
600	24	609.6	9.53	141	14.3	210	9.53	141	17.4	255	24.5	355	12.7	187

Dimension Schedule of Epoxy Coated Carbon Steel Pipe

DN Designator	NPS Designator	Inside Diameter	Outside Diameter	Wall Thickness	Nominal Weight (Mass) per unit Length
DN Designator	NPS Designator	(mm)	(mm)	(mm)	Threads & Couplings (kg/m	Plain End (kg/m)
6	1/8″	6.08	10.03	1.073	0.037	0.037
8	1/4″	9.02	13.07	2.024	0.063	0.063
10	3/8″	12.05	17.01	2.031	0.084	0.084
15	1/2″	15.08	21.03	2.077	1.027	1.027
20	3/4″	20.09	26.07	2.087	1.069	1.069
25	1″	26.06	33.04	3.038	2.05	2.05
32	1-1/4″	35.01	42.02	3.056	3.04	3.039
40	1-1/2″	40.09	48.03	3.068	4.004	4.005
50	2″	52.05	60.03	3.091	5.046	5.044
65	2-1/2″	62.07	73	5.016	8.067	8.063
80	3″	77.09	88.09	5.049	11.035	11.029
90	3-1/2″	90.01	101.06	5.074	13.071	13.057
100	4″	102.03	114.03	6.002	16.023	16.007
125	5″	158.02	141.03	6.055	22.007	21.077
150	6″	154.01	168.03	7.011	28.058	28.026
200	8″	202.07	219.01	8.018	43.073	42.055
250	10″	254.05	273	9.027	63.036	60.029
300	12″	304.08	323.08	9.052	76.021	73.078

Large Diameter Carbon Steel Pipe Tolerance Chart

Tolerance, %	Outside Diameter, inch
+22.05/-12.05	3≤OD≤18, WT/OD≤5%
+20.00/-12.05	1/8≤OD≤2-1/2
+22.05/-12.05	OD≥20, WT/OD≤5%
+15.00/-12.05	3≤OD≤18, WT/OD>5%
+15.0/-12.05	OD≥20, WT/OD>5%

Carbon Steel Structural Steel Pipe

Category	Details
Pipe Standard	ASTM A519, ASTM A53, JIS G3444, ASTM A500, EN 10219/10210, DIN 1629
Uses	Mechanism Industry, General Structure
Product	Seamless Structural Pipe, Structural Seamless Pipe
Size Range	WT: 6-35 mm OD: 73-630 mm Length: 6 / 5.8 / 12 m / 11.8

Carbon Steel Precision Steel Pipe

Category	Details
Standard	ST35, EN 10305, ST45, ST37, DIN 2391, ST52, DIN 2445
Uses	Mechanical Structures, Automotive Parts, Hydraulic Equipment
Type	Seamless Tube/Pipe
Size Range	WT: 0.5 to 10 mm OD: 6 mm to 114 mm Length: 6 / 5.8 / 12 m / 11.8
Heat Treatment	GBK(+A), NBK(+N), BK(+C), BKS(+SR), BKW(+LC)

Carbon Steel Boiler Pipe

Category	Details
Standard	ASTM A179, ASTM A192, ASTM A210, ASTM A209, JIS G3462, JIS G3461, DIN 17175, JIS 3463, EN 10216-2
Application	Boiling water tube, steam/superheated pipeline
Type	Seamless
Size	WT: 2.3 to 40 mm OD: 21.3 to 711 mm Length: 6 / 5.8 / 12 / 11.8 m

Pressure Rating chart of Nace Mr0175 Carbon Steel Pipe

Maximum Allowable Pressure (psi)
NPS	Outside Diameter	Schedule
(in)	(in)	20	10	30	STD	40	XXS	XS	60	80	100	120	140	160
1/4	0.054				7985	7985		10798		10798
3/8	0.0675				6606	6606		9147		9147
1/2	0.084				6358	6358	17150	8575		8575				10908
3/4	1.005				5273	5273	14373	7187		7187				10220
1	1.0315				4956	4956	13340	6670		6670				9316
1 1/4	1.066				4133	4133	11276	5638		5638				7380
1 1/2	1.09				3739	3739	10316	5158		5158				7247
2	2.0375				3177	3177	8995	4498		4498				7097
2 1/2	2.0875				3460	3460	9408	4704		4704				6391
3	3.05				3024	3024	8400	4200		4200				6132
3 1/2	4				2769	2769		3896		3896
4	4.05				2581	2581	7339	3670		3670		4769		5782
5	5.0563				2273	2273	6606	3303		3303		4404		5505
6	6.0625				2071	2071	6390	3195		3195		4157		5318
8	8.0625	1420		1574	1829	1829	4971	2841	2307	2841	3375	4085	4613	5147
10	10.075	1140		1399	1664	1664	4558	2279	2279	2708	3277	3847	4558	5128
12	12.075	961		1268	1441	1560	3843	1922	2160	2644	3244	3843	4324	5042
14	14	1092	875	1313	1313	1533		1750	2079	2625	3283	3829	4375	4921
16	16	956	766	1148	1148	1531		1531	2009	2585	3157	3733	4404	4882
18	18	849	681	1192	1021	1530		1361	2042	2553	3147	3743	4252	4848
20	20	919	613	1225	919	1455		1225	1989	2526	3138	3675	4288	4824
22	22	835	557	1114	835			1114	1949	2506	3063	3619	4176	4733
24	24	766	510	1147	766	1405		1021	1978	2489	3126	3700	4210	4786
30	30	817	510	1021	613			817
32	32	766	478	957	574	1054
34	34	721	450	901	540	992
36	36	681	425	851	510	1021
42	42	583		729	438	875

Mechanical analysis of PTFE Lined Carbon Steel Pipe

Property	Grade A	Grade B	Grade C
Yield Strength, min (psi / MPa)	30,000 (205)	35,000 (240)	40,000 (275)
Tensile Strength, min (psi / MPa)	48,000 (330)	60,000 (415)	70,000 (485)

CS Seamless Pipe standard and grades

Standard	Description	Grade
ASTM A106	For High Temperature Service Seamless Carbon Steel Pipe	Gr.C, Gr.B
ASTM A53	Hot-Dipped Zinc-Coated and Black Seamless Steel Pipes	Gr.B, Gr.A, Gr.C
ASTM A192	For High Pressure Seamless Carbon Steel Boiler Tubes	Low Carbon Steel
ASTM A556	Carbon Steel Feedwater Heater Tubes Seamless Cold-Drawn	B2, A2
ASTM A179	Condenser and Heat-Exchanger Tubes Seamless Cold-Drawn Low-Carbon Steel	Low Carbon Steel
ASTM A210	Superheater and Boiler Tubes Seamless Medium-Carbon Steel	C, A1
ASTM A199	Heat-Exchanger and Condenser Tubes for Seamless Cold-Drawn Intermediate Alloy Steel	T22, T5
ASTM A333	For Mechanical Tubing Seamless Alloy and Carbon Steel	Gr.3, Gr.1, Gr.6
ASTM A213	Seamless Austenitic and Ferritic Alloy Steel Superheater, Boiler and Heat-Exchanger Tubes	T5, T11, T9, T22, T12, T91
ASTM A334	For Low Temperature Use Welded and Seamless Alloy Steel and Carbon Steel Pipes	Gr.6, Gr.1

Carbon Steel Square Pipe for High Pressure applications

ASTM	JIS G 3454	ASME	BS	DIN	NK	ABS	ISO	LRS	DNV
A53 A	STPG 370	SA53 A	3601 320	1626 ust37.00	KSTPG 38	ABS 2	2604 II TW4	Sec 2 320	Sec 4-B-TS360
							2604 III TS4	Sec 2 360
A135 A		SA135 A	3601 360	1626 st37.00		ABS 8	2604 II TS5	Sec 3 320	Sec 4-B-TW360
							2604 III TW5	Sec 3 360
				1629 st37.00			2604 II TS6
							2604 III TW6
A53 B	STPG 410	SA53 B	3601 430	1626 st44.00	KSTPG 42	ABS 3	2604 II TS9	Sec 2 410	Sec 4-B-TS410
							2604 III TW9		Sec 4-B-TW410
A135 B		SA135 B		1629 st44.00		ABS 9	2604 II TS10	Sec 3 410	Sec 4-B-TS430
							2604 III TW10		Sec 4-B-TW430
				1626 st52.00			2604 II TS13	Sec 2 460	Sec 4-B-TS500
							2604 III TW13		Sec 4-B-TW500
				1629 st52.00			2604 II TS14	Sec 2 490
							2604 III TW14	Sec 3 460