Trusted since 1984
Pipes and Tubes Manufacturer, Supplier & Exporter of Steel & Alloys
Amardeep Steel Centre is a leading pipes and tubes manufacturer and supplier in India, serving EPC contractors, OEMs, fabricators and industrial procurement teams worldwide, as part of our complete range of industrial piping solutions. We manufacture and supply all grades of seamless pipe and tube for high pressure/high temperature use, as well as welded pipe & tube (ERW/EFW/LSAW) for structural, conveyance and lower-pressure
applications, such as stainless steel pipes and tubes, carbon steel pipes and tubes, alloy steel (chrome-moly) pipes and duplex & super duplex pipes engineered to your project's actual duty conditions. Every consignment ships with EN 10204 3.1/3.2 mill test certificates and full material traceability, so buyers get certified quality with a fast RFQ turnaround.
Pipe vs Tube: What B2B Buyers Should Know
Though often quoted together, pipes and tubes are specified, manufactured and priced differently and choosing the right one affects both performance and cost. Pipes are sized by nominal bore (NB/NPS) and schedule, and are built to convey fluids and gases under pressure, so the inside diameter and pressure rating matter most. Tubes are specified by exact outside diameter (OD) and wall thickness, held to tighter dimensional tolerances, and are used where structural strength, heat transfer or precise fit matter, heat exchangers, instrumentation and mechanical parts. Knowing which you need NB/schedule vs OD/WT determines the standard, tolerance and price; use our steel pipe dimensions chart to confirm exact sizing before you order.
Our Steel Pipes and Tubes Range
Amardeep Steel stocks and manufactures the full spectrum of steel pipes and tubes in both seamless and welded (ERW/EFW/LSAW) construction, spanning stainless steel grades like SS 304 / 304L / 316 / 316L, carbon steel grades led by ASTM A106 / A53, alloy steel (chrome-moly) for high-temperature boiler and refinery service, duplex and super duplex for offshore and chloride-heavy environments, Corten weathering steel for structural applications, and API 5L line pipe for oil & gas pipeline transmission. Select a family below to see the complete grade list, sizes and standards for that material.
Super Duplex Steel Pipes & Tubes4 Products
Duplex Steel Pipes & Tubes3 Products
Corten / Weathering Steel Pipes & Tubes6 Products
Stainless Steel Pipes & Tubes30 Products
- ASTM A312 A213 A249 Tp304 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp304h Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp310 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp310s Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp317 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp317l Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp321 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp321h Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp347 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp347h Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp410 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A249 Tp446 Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A269 Tp309h Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A213 A269 Tp310h Stainless Steel Seamless Welded Pipes Tubes
- ASTM A312 A358 A778 ASME B36.19m Stainless Steel Pipes
- ASTM B677 B673 B674 Tp904l Stainless Steel Seamless Welded Pipes Tubes
- Ss 253 Ma Pipes Tubes Supplier
- Stainless Steel 304l Pipes Tubes
- Stainless Steel 316 Pipes Tubes
- Stainless Steel 316h Pipes Tubes
- Stainless Steel 316l Pipes Tubes
- Stainless Steel 316ti Pipes Tubes
- Stainless Steel Pipe Fittings High Temperature Industrial Applications
- Stainless Steel Pipe Tubes
- Stainless Steel Pipes JIS G3459 CNS 6331 Welded Pipes Tubes
- Stainless Steel Seamless Pipes Tubes
- Stainless Steel Welded Pipes Tubes
- 301 Stainless Steel Pipe
- DIN 17172 Ste 320 7 Pipe
- Light Guage Stainless Steel Pipes Ordinary Piping
Alloy Steel Pipes & Tubes14 Products
- ASTM A335 P1 Alloy Steel Seamless Pipes
- ASTM A335 P11 Alloy Steel Seamless Pipes
- ASTM A335 P12 Alloy Steel Seamless Pipes
- ASTM A335 P2 Alloy Steel Seamless Pipes
- ASTM A335 P22 Alloy Steel Seamless Pipes
- ASTM A335 P23 Alloy Steel Seamless Pipes
- ASTM A335 P5 5b 5c Alloy Steel Seamless Pipes
- ASTM A335 P9 Alloy Steel Seamless Pipes
- ASTM A335 P91 Alloy Steel Seamless Pipes
- ASTM A335 P92 Alloy Steel Seamless Pipes
- Alloy 28 Pipes Tubes Suppliers Exporter
- Alloy Steel Pipes Tubes
- Scm415 Alloy Steel Tube Pipe
- Sanicro 28 Pipes Tubes Suppliers Exporter
Carbon Steel Pipes & Tubes78 Products
- A252 Grade 1 Pipes Tubes
- A252 Grade 3 Pipes Tubes
- API 5l Seamless Steel Pipes
- ASTM A106 Gr B C Carbon Steel Pipes Tubes
- ASTM A120 Carbon Steel Pipes Tubes
- ASTM A134 ASME Sa134 Pipes
- ASTM A135 ASME Sa135 Pipes
- ASTM A199 ASME Sa199 Pipes
- ASTM A333 Gr 1 Low Temperature Carbon Steel Pipes Tubes
- ASTM A333 Gr 6 Low Temperature Carbon Steel Pipes Tubes
- ASTM A334 ASME Sa334 Pipes Tubes
- ASTM A36 Carbon Steel Pipe Tube
- ASTM A500 Pipe Tube Supplier
- ASTM A671 Carbon Steel Welded Pipes Tubes
- ASTM A671 Grade Cc 60 Carbon Steel Efw Pipes Tubes
- ASTM A671 Grade Cc 65 Carbon Steel Efw Pipes Tubes
- ASTM A671 Grade Cc 70 Carbon Steel Efw Pipes Tubes
- ASTM A672 Carbon Steel Welded Pipes Tubes
- ASTM A672 Grade C60 C65 C70 Efw Pipes Tubes
- Api5l Line Carbonsteel Pipes
- Api5l X42 Psl1 Carbonsteel Pipes
- Api5l X42 Psl2 Carbonsteel Pipes
- Api5l X46 Psl1 Carbonsteel Pipes
- Api5l X46 Psl2 Carbonsteel Pipes
- Api5l X52 Psl1 Carbonsteel Pipes
- Api5l X52 Psl2 Carbonsteel Pipes
- Api5l X56 Psl1 Carbonsteel Pipes
- Api5l X56 Psl2 Carbonsteel Pipes
- Api5l X60 Psl1 Carbonsteel Pipes
- Api5l X60 Psl2 Carbonsteel Pipes
- Api5l X65 Psl1 Carbonsteel Pipes
- Api5l X65 Psl2 Carbonsteel Pipes
- Api5l X70 Psl1 Carbonsteel Pipes
- Api5l X70 Psl2 Carbonsteel Pipes
- Carbon Steel Lsaw Pipes Tubes
- Carbon Steel Pipes Tubes
- Carbon Steel Saw Pipes Tubes
- Ck45 Carbon Steel Tubes Pipe Supplier
- Cold Drawn Steel Pipes Seamless Tube
- DIN 2391 St35 Steel Pipe Tube
- DIN 2391 St37 Pipe Tube Supplier
- DIN 2391 St52 Pipe Tube
- EN 10216 5 Pipe Tube
- EN 10219 S235jrh Seamless Pipe Tube
- EN 10219 S355j2h Seamless Pipe Tube
- EN 10219 S355joh Seamless Pipe Tube
- EN 10305 1 E235 Carbon Steel Pipe Tubes
- EN S275j0h Structural Square Pipes
- EN S275j2h Structural Square Pipes
- Hot Expanded Steel Pipes Seamless Tube
- Hot Rolled Steel Pipes Seamless Tube
- Large Diameter Welded Pipes JIS G3468 CNS 13517
- Seamless Boiler Steel Pipes
- Seamless Pipes Tubes
- Seamless Structural Steel Pipes
- A53 Grade B Pipe
- API 5l Grade B Pipe
- DIN 17172 Ste 240 7 Pipe
- DIN 17172 Ste 290 7 Pipe
- DIN 17172 Ste 360 7 Pipe
- EN 10210 1 S235 Jrh Pipe
- EN 10210 1 S275 J2h Pipe
- EN 10210 1 S275 Joh Pipe
- EN 10210 1 S355 Joh Pipe
- En8 Seamless Pipe
- En9 Seamless Pipe
- JIS G3452 Pipe
- Q195 Steel Pipe
- Q235 Steel Pipe
- Schedule 10 Steel Pipe
- Schedule 100 Steel Pipe
- Schedule 120 Steel Pipe
- Schedule 20 Steel Pipe
- Schedule 30 Steel Pipe
- Schedule 40 Steel Pipe
- Schedule 60 Steel Pipe
- Schedule 80 Steel Pipe
- Seamless Steel Pipe
Our Special Metal Alloys Pipes and Tubes Range
Beyond carbon and stainless steel, Amardeep Steel is a specialist stockist of high-performance, non-ferrous alloy pipes and tubes engineered for conditions where standard steel fails including Inconel and Hastelloy for extreme heat and aggressive-acid resistance, Monel and Copper Nickel for marine and seawater service, Titanium and Zirconium for the most demanding chemical processing and desalination duty, and broader Nickel Alloy and Aluminium ranges for cryogenic and lightweight structural use. Select a family below for the complete grade list, sizes and standards.
Inconel Pipes & Tubes6 Products
Monel Pipes & Tubes5 Products
Copper Nickel Pipes & Tubes4 Products
Nickel Alloy Pipes & Tubes3 Products
Titanium Pipes & Tubes4 Products
Technical Data
Pipes & Tubes Specifications: Sizes, Grades & Standards
Parameter | Range / Detail |
|---|---|
Type | Seamless, Welded (ERW), EFW, LSAW, SSAW |
Pipe size | 1/8" NB to 48" NB (larger fabricated on request) |
Tube size (OD) | 6 mm OD to 762 mm OD |
Wall thickness | SCH 5S / 10S / 40 / 80 / 160 / XXS (0.5 mm–40 mm+) |
Length | Single/Double random, cut-to-length, U-bent |
Ends | Plain, beveled, threaded |
Form | Round, square, rectangular, coiled, hydraulic, capillary |
Standards | ASTM/ASME, EN, BS, DIN, JIS, API 5L, IBR |
Certification | EN 10204 3.1 / 3.2 MTC, PMI, IGC, hydrotest, radiography |
Steel Pipe Dimensions / NPS Schedule Chart
Common nominal pipe sizes with outside diameter andSchedule 40 andSchedule 80 wall thickness (mm) shown below and other wall thicknesses fromSchedule 10 throughSchedule 160 and XXS are available on request. Full chart on our steel pipe dimensions page.
NPS | OD (mm) | SCH 40 WT (mm) | SCH 80 WT (mm) |
|---|---|---|---|
1/2" | 21.34 | 2.77 | 3.73 |
1" | 33.40 | 3.38 | 4.55 |
2" | 60.33 | 3.91 | 5.54 |
3" | 88.90 | 5.49 | 7.62 |
4" | 114.30 | 6.02 | 8.56 |
6" | 168.28 | 7.11 | 10.97 |
8" | 219.08 | 8.18 | 12.70 |
10" | 273.05 | 9.27 | 12.70 |
12" | 323.85 | 9.52 | 12.70 |
View the full nominal pipe size chart
OD / ID Reference — Why Inside Diameter Matters
Because inside diameter (ID) determines actual flow capacity, buyers comparing pipe options should look beyond OD and schedule alone. ID is calculated as OD minus twice the wall thickness (OD − 2×WT). Reference values for Schedule 40 and Schedule 80 at common sizes:
NPS | OD (mm) | SCH 40 WT | SCH 40 ID | SCH 80 WT | SCH 80 ID |
|---|---|---|---|---|---|
1/2" | 21.34 | 2.77 | 15.80 | 3.73 | 13.88 |
1" | 33.40 | 3.38 | 26.64 | 4.55 | 24.30 |
2" | 60.33 | 3.91 | 52.51 | 5.54 | 49.25 |
3" | 88.90 | 5.49 | 77.92 | 7.62 | 73.66 |
4" | 114.30 | 6.02 | 102.26 | 8.56 | 97.18 |
6" | 168.28 | 7.11 | 154.06 | 10.97 | 146.34 |
8" | 219.08 | 8.18 | 202.72 | 12.70 | 193.68 |
10" | 273.05 | 9.27 | 254.51 | 12.70 | 247.65 |
12" | 323.85 | 9.52 | 304.81 | 12.70 | 298.45 |
Need a size in a different schedule? Browse Schedule 10, Schedule 20, Schedule 30, Schedule 60, Schedule 100, or Schedule 120, or send your spec through the enquiry form for an exact match.
Seamless vs Welded Pipes and Tubes
Seamless pipes and tubes are extruded from a solid billet with no weld seam, giving uniform strength and higher pressure ratings preferred for oil & gas, boilers, and high-temperature process lines, see our ASTM A106 Gr B/C carbon steel and alloy steel P11 seamless pipe ranges. Welded pipes and tubes (ERW/EFW/LSAW) are formed from plate or coil and welded; they are cost-effective and available in larger diameters, ideal for structural, water, and lower-pressure conveyance, including API 5L line pipe for pipeline transmission. We supply both, with the weld process and testing (including 100% radiography on request) matched to your project code.
Applications & Industries for Pipes and Tubes
Pipes and tubes form the backbone of nearly every industrial process carrying fluids, gases and thermal energy safely across refineries, power plants, chemical units and infrastructure projects. The right material, wall thickness and standard change with the application, so Amardeep Steel supplies pipes and tubes engineered to the specific pressure, temperature and corrosion demands of each industry we serve, across both steel and special metal alloy grades.
- Oil & Gas / Refineries: line pipe, process piping, downhole & offshore duty including API 5L line pipe for transmission mains.
- Power Generation & Desalination: boiler, superheater, condenser and cooling-water service using our boiler tubes.
- Petrochemical & Chemical Processing: corrosion-resistant pipes and tubes, including duplex piping, for aggressive process fluids.
- Heat Exchangers & Condensers: precision pipes and tubes, including titanium tubes, engineered for efficient, reliable heat transfer.
- Shipbuilding & Marine: seawater-resistant pipes and tubes, including super duplex, for hull, cooling and offshore systems.
- Boiler Manufacturing & IBR Compliance: certified IBR pipes and tubes for Indian Boiler Regulations projects.
- Mechanical & Automotive Fabrication: precision DOM & A519 mechanical tubing for structural and machined components.
- Construction & Infrastructure: structural piling, load-bearing supports, scaffolding, and underground utility lines including sewer and drainage systems.
- HVAC & Utility Systems: pipe and tube for heating, ventilation, air-conditioning and compressed-air distribution, chosen for its ability to withstand thermal expansion and pressure cycling.
- Fertilizer, Pharma, Food & Water Infrastructure: hygienic and corrosion-resistant pipes and tubes for process, potable-water and effluent-treatment applications.
Quality, Certifications & Testing of Pipes and Tubes
- Materials sourced from 100+ approved mills, with full traceability by heat number, part of the quality policy we follow across every product line.
- EN 10204 3.1 / 3.2 Mill Test Certificates with every order. View our certifications.
- Conformity to ASTM, ASME, EN, DIN, JIS & IBR, backed by our ISO 9001:2015 certified quality management system.
- PMI, IGC, hydrotest, 100% radiography & third-party / buyer inspection on request. See our testing capabilities.
- Registered vendor to Fortune-500 India & Ministry of Defence units; exports to KNPC, Qatar Petroleum, NIOC. Read more about Amardeep Steel and our client base.
Supply Pipes and Tubes Across India & Exports Worldwide
Stocked in Mumbai and supplied across India (Mumbai, Ahmedabad, Chennai, Delhi, Pune, Vadodara, Vizag and more), with regular exports to the Middle East, Europe, Africa, Southeast Asia and the Americas and 20+ countries. Every shipment reflects the same quality policy and export grade packing & dispatch standards, backed by our global sourcing capabilities. Ready stock enables fast dispatch against urgent RFQs. See our projects undertaken for examples of on time, certified delivery worldwide.
Why Buy Pipes and Tubes from Amardeep Steel
- Since 1984, 40+ years of piping material expertise. Learn more about Amardeep Steel.
- One stop range: SS, CS, alloy, duplex, nickel & titanium.
- ISO 9001:2015 certified quality + full traceability; MTC on every order. View our quality policy and certifications.
- Global export experience with compliant packing & documentation.
Frequently Asked Questions About Pipes and Tubes
What is the difference between a pipe and a tube?
Pipes are specified by nominal bore (NB/NPS) and schedule and are built to convey fluids/gases under pressure; tubes are specified by exact OD and wall thickness with tighter tolerances for structural, heat-transfer or precision use.
Do you supply both seamless and welded pipes and tubes?
Yes, seamless for high-pressure/high-temperature service and welded (ERW/EFW/LSAW) for structural and conveyance applications, in all listed grades.
Which standards and grades do you cover?
ASTM/ASME, EN, BS, DIN, JIS, API 5L and IBR in stainless (304/316/321/347/904L), carbon (A106/A53/A333), alloy (A335/A213 P & T grades), duplex, nickel alloys and titanium.
Do you provide Mill Test Certificates?
Yes. Every order ships with EN 10204 3.1 or 3.2 MTC, plus PMI, IGC, hydrotest and third-party inspection on request.
What sizes are available?
1/8" NB to 48" NB for pipes and 6 mm–762 mm OD for tubes, in schedules 5S–XXS, with cut-to-length and U-bending available.
Do you export steel pipes and tubes?
Yes, we export to 20+ countries across the Middle East, Europe, Africa, Asia and the Americas, with export-compliant packing and documentation.
Which is stronger, a pipe or a tube?
Tubes are generally held to tighter dimensional and wall-thickness tolerances, giving them a strength advantage for structural and mechanical applications. Pipes are rated by pressure class and schedule and are engineered for safe fluid and gas conveyance under pressure so strength depends on the duty condition, not the product type alone.
Is a pipe or a tube more cost-effective?
Pipe is typically more cost-effective per ton for bulk structural or fluid-conveyance runs due to looser tolerances and higher mill volumes. Tube generally costs more per ton due to tighter tolerances and stricter inspection, but is the only correct choice for heat-transfer or precision-fit applications regardless of price.
