Technical Details Summary
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Manufacturing Processes: Hot-Finished Seamless (HFS), Cold-Drawn Seamless (CDS), Electric Resistance Welded (ERW), Electric Fusion Welded (EFW), and Longitudinal Submerged Arc Welded (LSAW).
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Dimensional Range: 1/2" NB to 48" NB (15 NB to 1200 NB); Schedules: SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160, and XXS.
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Carbon Steel Specifications: ASTM A53 (Gr A, B), ASTM A106 (Gr A, B, C), API 5L (Gr B, X42 through X70 PSL1/PSL2), ASTM A691 (Gr A, B, C), ASTM A333 (Gr 1, 6), DIN 1629/2391 ST 52.
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Alloy Steel Specifications: ASTM A335 Chrome-Moly Seamless (Gr P1, P5, P9, P11, P12, P22, P23, P91), ASTM A691 EFW (Gr 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9 CR, 91).
Carbon & Alloy Steel Pipes Specifications
Detailed dimensional parameters, manufacturing methods, and standard supply capabilities offered by Trident Metal & Alloys.
| Specification Parameter | Manufacturing Capabilities & Supply Limits |
|---|---|
| Size Range | 1/2" NB up to 48" NB (15 NB to 1200 NB) |
| Schedules & Wall Thickness | SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS (Custom wall thicknesses up to 60 mm) |
| Manufacturing Form | Seamless, ERW, EFW, LSAW in Round & Square profiles |
| Carbon Steel Specifications | ASTM/ASME A53 (Gr A, B), A106 (Gr A, B, C), API 5L (Gr B to X70), A691 (Gr A, B, C), A333 (Gr 1, 6), DIN 1629/2391 ST 52 |
| Alloy Steel Specifications | ASTM/ASME A335 (Gr P1, P5, P9, P11, P12, P22, P23, P91), ASTM/ASME A691 (Gr 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9 CR, 91) |
| Length Options | Single Random (5-7m), Double Random (10-12m), and Cut-to-Length up to 18 meters |
| Surface Treatments | Black Varnish, Anti-Corrosion Light Oil, 3LPE, 3LPP, FBE, and Bare Untreated |
Carbon & Alloy Steel Pipes Overview
Trident Metal & Alloys is a premier Carbon & Alloy Steel Pipes Manufacturer in India, producing low-carbon, high-yield, and alloyed tubular products. Our inventory is engineered for ambient, sub-zero, and extreme-temperature service across power generation, oil and gas, and petrochemical operations.
By combining high-purity iron matrices with controlled chromium, molybdenum, vanadium, and manganese additions, our pipes meet ASME boiler and API transmission standards. We supply seamless, ERW, EFW, and LSAW profiles built to withstand high pressures and severe thermal stress.
As a trusted Carbon & Alloy Steel Pipes Supplier in India, we maintain extensive mill stock backed by EN 10204 3.1 material traceability. Browse our dedicated Carbon Steel Pipes or high-pressure Carbon Steel Seamless Pipes category to explore complete product lines.
Carbon & Alloy Steel Pipe Grades & Standards
High-Temperature Carbon Steel Pipe Grades
ASTM A106 Grade B: Industry standard silicon-killed seamless pipe for steam headers, refineries, and power generation operating up to 427°C (240 MPa yield). Explore our ASTM A106 Grade B Carbon Steel Seamless Pipes.
ASTM A106 Grade C: High-tensile seamless option (275 MPa yield) engineered for severe boiler loops and reduced wall thickness designs.
ASTM A106 Grade A: High-ductility carbon grade optimized for field fabrication, close coiling, and tight-radius bending.
ASTM A53 Grade A & B: Multi-purpose ERW and seamless carbon steel for structural framing and low-to-medium pressure utility lines (240 MPa yield).
API 5L Carbon Steel Line Pipe Grades
API 5L Grade B: Standard carbon steel line pipe specification for cross-country oil, gas, and water distribution networks.
API 5L X42 / X46 / X52: Micro-alloyed pipeline grades providing enhanced yield strength (up to 360 MPa) for medium-pressure transmission lines.
API 5L X60 / X70 (PSL1/PSL2): High-yield thermomechanically processed pipes (up to 485 MPa yield) engineered for high-pressure gas trunklines with excellent field weldability.
Chrome-Moly Alloy Steel Pipe Grades
ASTM A335 Grade P91: Martensitic 9% Cr-1% Mo alloy steel pipe delivering exceptional creep-rupture strength up to 600°C for supercritical power loops. Explore our ASTM A335 P91 Alloy Steel Pipes.
ASTM A335 Grade P22: Intermediate 2.25% Cr-1% Mo alloy seamless pipe engineered for elevated thermal oxidation resistance up to 570°C. Explore our ASTM A335 P22 Alloy Steel Pipes.
ASTM A335 Grade P11 / P12 / P5 / P9: Chrome-moly seamless grades offering balanced high-temperature corrosion and thermal stress resistance for refinery crackers and reheaters.
Heavy-Wall EFW Pipe Grades
ASTM A691 Grades A, B, C (Carbon): Heavy-wall fusion-welded carbon steel pipes manufactured from pressure-vessel plate for high-pressure utility services.
ASTM A691 Chrome-Moly Grades (1 1/4 Cr to 91): High-pressure alloy EFW pipes with 100% radiographed weld seams for heavy refinery and chemical reaction vessels.
Key Advantages of Carbon vs. Alloy Steel Pipes
Creep & Thermal Stress Endurance
Chrome-moly additions (ASTM A335) prevent micro-structural degradation and oxidation under continuous stress above 450°C.
Yield-to-Weight Efficiency
High-yield API 5L grades (up to 485 MPa) allow reduced wall thickness, lowering total steel tonnages in cross-country pipelines.
Simplified Field Fabrication
Standard carbon grades (A106/A53) simplify on-site welding without requiring complex post-weld heat treatment (PWHT).
Cryogenic Impact Resistance
Fine-grain carbon steels (ASTM A333 Gr 6) prevent brittle fractures during sub-zero service down to -45°C.
Quality Verification & Testing Standards
Every shipment dispatched by Trident Metal & Alloys undergoes strict multi-stage quality control to comply with project material standards:
Mill Test Certification
Fully compliant EN 10204 3.1 certification verifying heat chemistry, mechanical yield/tensile strength, elongation, and heat treatment cycles.
Non-Destructive Testing (NDT)
100% Ultrasonic Testing (UT) for seamless bodies, continuous Radiographic Testing (RT) for EFW welds, and Hydrostatic testing to ASTM/ASME code limits.
Alloy Composition Verification
Positive Material Identification (PMI) via X-ray fluorescence (XRF) spectroscopy on all alloy steel grades (A335/A691) to guarantee strict chrome/moly element percentages.
Third-Party Inspection (TPI)
Independent inspection protocols managed through TUV, Bureau Veritas, SGS, DNV, and Lloyd's Register.
Request a Quote
Contact Trident Metal & Alloys for mill-direct pricing, stock availability, and technical datasheets across our full carbon and alloy steel pipe inventory.
- Email Inquiries: tridentmetal96@yahoo.com
- Direct Phone / WhatsApp: +91 9619282829 / +91 9619966304
