Technical Details Summary
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Manufacturing Process: High-Frequency Electric Resistance Welding (HFW/ERW) from hot-rolled steel coils.
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Dimensional Range: 1/2" NB up to 24" NB (15 NB to 600 NB) for standard lines; up to 48" (1200 NB) for IS 3589 large-diameter water mains.
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Wall Thickness & Classes: Light (Class A), Medium (Class B), Heavy (Class C); SCH 10 to SCH 80 (2.0 mm to 16.0 mm wall thickness).
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Core Standards Stocked: IS 1239 (Part 1), IS 3589, ASTM A53 (Grades A/B), IS 1161, IS 4923, and API 5L (Gr A, B, X42).
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Quality & Verification: EN 10204 3.1 Mill Test Certificates, 100% Eddy Current / NDT Weld Seam Testing, Hydrostatic Pressure Testing, Flattening & Bending Tests.
Mild Steel ERW Pipes Specifications
Detailed dimensional parameters, manufacturing methods, and standard supply capabilities offered by Trident Metal & Alloys.
| Specification | Manufacturing Capabilities & Supply Limits |
|---|---|
| Size Range | 1/2" NB up to 24" NB (15 NB to 600 NB) / Large Dia up to 1200 NB for IS 3589 |
| Schedules & Wall Thickness | Light (Class A), Medium (Class B), Heavy (Class C); SCH 10, 20, 30, 40, STD, 80; Wall thickness from 2.0 mm up to 16.0 mm |
| Manufacturing Form | Electric Resistance Welded (ERW / HFW) in Round, Square, and Rectangular profiles |
| Fluid & Pressure Pipeline Grades | IS 1239 (Part 1): Light, Medium, Heavy Class IS 3589: Fe 330, Fe 410, Fe 450 ASTM A53: Grade A, Grade B |
| Structural & Framing Grades | IS 1161: YST 210, YST 240, YST 310 IS 4923: YST 210, YST 240, YST 310 (Hollow Sections) |
| Oil & Gas Line Pipe Grades | API 5L: Grade A, Grade B, Grade X42 (PSL1) |
| Length Options | Single Random (5-7m), Double Random (10-12m), and Fixed Cut-to-Length (up to 12 meters) |
| Surface Treatments & Ends | Black Varnish, Red Primer, Hot-Dip Galvanized (GI), Anti-Corrosion Oil, 3LPE Coated; Plain End (PE), Beveled End (BE), Threaded & Coupled (NPT/BSP) |
MS ERW Pipes Overview
Trident Metal & Alloys is a premier MS ERW Pipes Supplier and global MS ERW Pipes Exporter, delivering precision-engineered Mild Steel ERW Pipes for fluid conveyance, structural framing, and utility networks. Manufactured via continuous cold-forming and high-frequency welding, our Mild Steel Electric Resistance Welded Pipes offer tight wall tolerances and uniform concentricity.
We stock ready inventory compliant with IS, ASTM, and API standards. For high-pressure or zero-weld needs, explore our MS Seamless Pipes catalog or view our broader Carbon Steel Pipes selection. All orders include EN 10204 3.1 MTCs and complete NDT documentation.
Mild Steel ERW Grades & Standards
1. Water & Plumbing Pipes Grades
IS 1239 (Part 1) — Plumbing & Utilities
Light (Class A), Medium (Class B), and Heavy (Class C) classes available for HVAC
chilled water, plumbing, fire sprinklers, and compressed air lines.
IS 3589 — Large Diameter Water & Sewage Pipes
Fe 330, Fe 410, and Fe 450 grades (330–450 MPa yield) supplied for cross-country
water trunks, sewage mains, penstocks, and industrial effluent lines.
ASTM A53 — Process Piping & Industrial Fluid
Lines
Grade A and Grade B ERW carbon steel pipes engineered for close bending, cold
coiling, power plant piping, and high-pressure factory steam lines.
2. Structural & Engineering Pipes Grades
IS 1161 — Structural Steel Tubes & Scaffolding
YST 210 (210 MPa Yield): Lightweight scaffolding, safety railings, and machinery frames.
YST 240 (240 MPa Yield): PEB columns, storage racks, and structural trusses.
YST 310 (310 MPa Yield): High-load infrastructure staging, gantries, and crane girders.
IS 4923 — Square & Rectangular Hollow Sections
YST 210 (210 MPa Yield): Secondary purlins, gates, and light framing assemblies.
YST 240 (240 MPa Yield): Modular building frames and bus body fabrication.
YST 310 (310 MPa Yield): Heavy equipment chassis, load-bearing space frames, and roof trusses.
3. Oil, Gas & Petrochemical Line Pipe Grades
API 5L — Oil & Gas Pipeline Grades
Grade A (210 MPa Yield): Low-pressure gathering lines and refined product distribution loops.
Grade B (245 MPa Yield): Cross-country petroleum transmission lines requiring high field weldability.
Grade X42 (290 MPa Yield): High-yield natural gas pipelines designed for reduced wall thickness.
Key Operational Advantages of MS ERW Pipes
Tight Dimensional Tolerances
Uniform wall thickness and consistent concentricity reduce fit-up time and field welding costs.
High Structural Integrity
Continuous high-frequency welding provides parent-metal strength along the seam for dependable pressure containment.
Superior Surface Finish
Smooth internal and external surfaces minimize flow friction, pressure drops, and internal scaling.
Cost-Effective Scalability
Lower manufacturing costs than seamless pipes make ERW ideal for long-distance utility and water transmission lines.
Versatile Standard Compliance
Readily supplied to IS 1239, IS 3589, ASTM A53, and API 5L specifications.
Quality Verification & Testing Standards
As a trusted MS ERW Pipes Exporter, Trident Metal & Alloys implements strict inline quality controls across all manufacturing stages:
In-Line NDT Seam Inspection
100% continuous Eddy Current or Ultrasonic flaw detection applied directly to the longitudinal seam during production.
Hydrostatic Pressure Testing
Every length is pressurized to standard code requirements (IS 1239 / ASTM A53) to verify pressure containment without leakage.
Mechanical Deformation Tests
Mandrel flattening tests, reverse bend tests, and flange expansion tests confirm weld seam ductility and parent metal adhesion.
Traceability & Certification
Supplied with complete EN 10204 3.1 Mill Test Certificates detailing chemical heat analysis, mechanical tensile/yield results, and Third-Party Inspection (TPI) clearance.
Regional Supply Network Across India
Western Region (Maharashtra & Gujarat)
Supplying MS ERW Pipes to HVAC, water utility, and fabrication hubs in Mumbai, Pune, Thane, Ahmedabad, Vadodara, Rajkot, Surat, and Hazira.
Northern & Central Region (NCR, Punjab, UP & MP)
Distributing IS 1239, IS 3589, and IS 4923 pipes for MEP networks, plumbing, and PEB structures across Delhi NCR, Gurgaon, Faridabad, Ghaziabad, Ludhiana, Kanpur, Indore, and Bhopal.
Southern Region (Tamil Nadu, Karnataka, Telangana & AP)
Delivering MS Electric Resistance Welded Pipes to water supply projects, plant utility lines, and engineering units in Chennai, Coimbatore, Bengaluru, Hyderabad, Visakhapatnam, and Kochi.
Eastern Region (West Bengal, Odisha, Jharkhand & Chhattisgarh)
Bulk supply of large-diameter MS ERW Pipes for mining effluent, steel plant utilities, and infrastructure projects in Kolkata, Durgapur, Jamshedpur, Rourkela, Bhilai, and Raipur.
Frequently Asked Questions
Q: What is the difference between MS ERW and MS Seamless pipes?
A: MS ERW pipes are made by cold-forming and electric resistance welding steel coil, offering tight wall tolerances at lower cost. Seamless pipes are extruded from solid billets with no seam, suitable for extreme high-pressure applications.
Q: Which standards do your MS ERW pipes comply with?
A: We stock pipes manufactured to IS 1239, IS 3589, ASTM A53, IS 1161, IS 4923, and API 5L specifications.
Q: Are IS 1161 and IS 4923 ERW pipes suitable for bending and welding?
A: Yes, low-carbon chemistry guarantees smooth field welding, easy cold bending, and high structural joint integrity.
Q: What is the advantage of IS 4923 hollow sections over open profiles?
A: Closed hollow sections offer superior torsional stiffness, higher strength-to-weight ratios, and cleaner architectural joinery.
Q: Can ERW pipes be used for pressure applications?
A: Yes. ERW pipes tested to IS 1239, IS 3589, ASTM A53, and API 5L are engineered for fluid, gas, and steam distribution under rated pressures.
Request a Quote
Contact Trident Metal & Alloys for mill-direct pricing, project stock availability, and technical specification support for your piping requirements.
- Email Inquiries: tridentmetal96@yahoo.com
- Direct Phone / WhatsApp: +91 9619282829 / +91 9619966304
