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Material GuideJune 2026 · 9 min read

Carbon Steel Pipe, Plate, Fittings & Flanges — Complete Guide

Carbon steel is the backbone of process piping and pressure equipment. From carbon steel pipe in ASTM A106 Gr.B to carbon steel plate in SA 516 Gr.70, plus alloy plate, carbon steel fittings and carbon steel flanges — Creative Metal Industries supplies the complete carbon and alloy steel range with full documentation from its Vadodara stockyard.

Carbon Steel Pipe — ASTM A106 Gr.B & API 5L

Carbon steel pipe is specified by service. ASTM A106 Gr.B is the seamless carbon pipe for high-temperature service — steam lines, refinery process piping and boiler connections. ASTM A53 covers welded and seamless pipe for general and lower-temperature use, while API 5L Gr.B is the line-pipe grade for oil and gas transmission. Creative Metal Industries stocks carbon pipe from 6NB to 600NB, SCH 40 to XXS, with IBR Form III-C where the application demands it.

Carbon Steel Plate — SA 516 Gr.70, IS 2062 & A36

SA 516 Gr.70 is the pressure-vessel quality carbon plate for boilers, tanks, heat exchangers and pressure vessels — prized for its notch toughness at moderate and low temperatures. IS 2062 E250/E350 and ASTM A36 cover structural-grade carbon plate for general fabrication. NACE/HIC tested SA 516 Gr.70 is available for sour-service equipment. Plates run 5mm to 200mm thick and can be cut-to-size.

Alloy Steel Plate — ASTM A387

Alloy plate to ASTM A387 (Grades 5, 9, 11, 12, 22, 91) is used for high-temperature pressure-vessel service where plain carbon steel loses strength. Chromium-molybdenum alloy plates resist creep and hydrogen attack in refinery reactors, hydrocrackers and boiler drums. Supplied normalised and tempered, with IBR certification available.

ProductGrade / SpecTypical Use
CS Seamless PipeASTM A106 Gr.BHigh-temp process piping
CS Welded PipeASTM A53 Gr.BGeneral service
Line PipeAPI 5L Gr.B / X-gradesOil & gas transmission
CS Plate (PVQ)SA 516 Gr.60/70Pressure vessels, tanks
CS Plate (Structural)IS 2062 / A36Fabrication, structures
Alloy PlateASTM A387 Gr.11/22/91High-temp vessels
CS Buttweld FittingsASTM A234 WPBElbows, tees, reducers
CS Forged FittingsASTM A105SW & threaded fittings
CS FlangesASTM A105 / A350 LF2ASME B16.5 / B16.47

Carbon Steel Fittings & Flanges

Carbon steel fittings — buttweld elbows, tees, reducers and caps to ASTM A234 WPB (ASME B16.9), plus forged socket-weld and threaded fittings to ASTM A105 (ASME B16.11). Carbon steel flanges in A105 (and A350 LF2 for low-temperature service) cover weld-neck, slip-on, blind, SORF and SWRF types to ASME B16.5 and B16.47. Matching alloy steel fittings (WP11/WP22/WP91) and flanges (F11/F22/F91) complete high-temperature piping systems. All carry MTC and IBR Form III-C where required.

Applications

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Oil & Gas Refineries

A106 Gr.B process piping, A234 WPB fittings and A105 flanges for refinery and petrochemical units.

Power Plants

Alloy steel A387 plate, P-grade pipe and F-grade flanges for boilers and high-temperature service.

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Pressure Vessels & Tanks

SA 516 Gr.70 plate for boilers, storage tanks and heat exchangers — NACE/HIC available.

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Fabrication & EPC

Carbon steel pipe, plate, fittings and flanges supplied with full MTC for EPC contractors.

Why Source Carbon Steel from Creative Metal Industries?

Frequently Asked Questions — Carbon Steel

What is ASTM A106 Gr.B carbon steel pipe?

ASTM A106 Grade B is a seamless carbon steel pipe for high-temperature service — the standard choice for refinery, power and petrochemical process piping. Supplied with IBR Form III-C for boiler and pressure-part use.

What is SA 516 Gr.70 plate used for?

SA 516 Gr.70 is a carbon steel pressure-vessel quality plate for boilers, storage tanks, heat exchangers and pressure vessels. NACE/HIC tested plate is available for sour service.

What grades of carbon steel fittings and flanges do you supply?

Buttweld fittings to A234 WPB, forged fittings and flanges to A105, low-temp flanges to A350 LF2, plus alloy fittings (WP11/WP22/WP91) and flanges (F11/F22/F91). All with MTC and IBR where required.

Need Carbon Steel Pipe, Plate, Fittings or Flanges?

A106 Gr.B pipe, SA 516 Gr.70 plate, A234 fittings, A105 flanges. IBR & NACE certified. Vadodara stock.

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Related Articles & Products

CS Pipe & Fittings VadodaraSA 516 Plate GuideNACE/HIC Plate GuideMS Structural Steel GuideP91 Alloy Steel Guide