High-Performance Alloy Pipes for Extreme Conditions

KVN Steels specialize in delivering high-performance Inconel 600, 601, 625, and 718 pipes and tubes, meticulously manufactured using premium-grade nickel-chromium and nickel-molybdenum alloys. Designed to meet a wide array of industrial demands, these products are available in multiple configurations including seamless, welded, ERW, and fabricated forms. Offered in a broad spectrum of dimensions, wall thicknesses, and finishes, they conform to globally recognized standards such as ASTM, ASME, and API. To cater to unique project requirements, we also provide customized solutions based on client specifications. We maintain a robust supply chain that efficiently caters to key markets across India, the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Oman, Iran, and Iraq, ensuring prompt delivery and dependable availability at all times.

Technical Overview

Each alloy in the Inconel family is engineered for specific performance attributes in extreme environments. Inconel 600 exhibits exceptional resilience against oxidation and carburizing environments, making it an ideal choice for high-temperature industrial applications. Inconel 601 builds upon this with enhanced oxidation resistance and mechanical strength, especially under thermal cycling conditions. Inconel 625 and Incoloy 800 Steel Pipes & Tubes, a superalloy containing molybdenum and niobium, is recognized for its superior tensile strength and excellent corrosion resistance across a range of acids and marine environments. Inconel 718, a precipitation-hardenable stainless steel grades variant alloy, is engineered to deliver outstanding yield strength, excellent creep resistance, and superior stress rupture capabilities under elevated temperature conditions.

Applications & Industry Use

Due to their exceptional corrosion resistance, thermal stability, and mechanical robustness, Inconel 600/601/625/718 pipes and tubes are widely utilized across multiple critical industries. Common applications include heat exchangers, chemical processing units, gas turbines, offshore platforms, nuclear reactors, pharmaceutical equipment, and seawater desalination systems. These materials are particularly valued in industries that demand high reliability in corrosive and high-temperature environments. Each batch undergoes rigorous quality assessments such as Positive Material Identification (PMI), mechanical property testing, flattening, microstructural evaluation, and is accompanied by certification including EN 10204 3.1 and radiographic inspection. Packaging is carried out with precision to ensure damage-free transit, tailored to international shipping and client-specific handling requirements.

600/601/625/718 Inconel Pipes and Tubes Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
Inconel 600	2.4816	N06600	NCF 600	NA 13	МНЖМц 28-2,5-1,5	NC15FE11M	NiCr15Fe
Inconel 601	2.4851	N06601	NCF 601	NA 49	XH60BT	NC23FeA	NiCr23Fe
Inconel 625	2.4856	N06625	NCF 625	NA 21	ХН75МБТЮ	NC22DNB4M	NiCr22Mo9Nb
Inconel 718	2.4668	N07718	-	-	-	-	-

Inconel Alloy Seamless Pipes

ASTM B407 Incoloy 800 Seamless Pipes, UNS N08800/ N08811 / N08825 Seamless Pipes, DIN 1.4876 Seamless Pipes, ASME SB407 Incoloy Alloy 825 Seamless Piping

Incoloy Alloy Seamless Tubes

ASME SB407 Incoloy Alloy 800 Seamless Tube, Incoloy 800HT Seamless Tubing, DIN 1.4876 Seamless Tubes, UNS N08811 / N08825 Seamless Tube

Incoloy Alloy Welded Pipes

Incoloy 800 Welded Pipes, UNS N08800/ N08825 Welded Pipe, Incoloy Alloy 800HT Welded Pipes, Incoloy Alloy 825 Welded Pipe Supplier

Incoloy Alloy Welded Tubes

DIN 1.4876 / 2.4858 Welded Tubing, UNS N08800 Welded Tube, B515 Incoloy 800HT Welded Tubes, Incoloy 825 Welded Tubes

Incoloy Alloy ERW Pipes

Incoloy 800 / 800HT ERW Pipes, ASTM B514 Incoloy 825 ERW Pipe, Alloy UNS N08800/ N08811/ N08825 ERW Pipes, DIN 1.4859 / 1.4876 ERW Pipes

Incoloy Alloy ERW Tubes

UNS N08800 / N08811 ERW Tubes, Incoloy 800 / 800HT ERW Tubing, Alloy 825 ERW Tubes, DIN 1.4876 ERW Tube Manufacturer

Incoloy Pipe Specification :

ASTM B167, B517, B983, B444, B705 / ASME SB167, SB517, SB983, SB444, SB705

Incoloy Tube Specification :

ASTM B516 / ASME SB516, ASTM B704 / ASME SB704, ASME SB983

Standard :

ASTM, ASME and API

Tube Size :

15"NB – 150"NB

Thickness Range :

6.35 mm OD upto 254 mm OD in 0.6 TO 20 mm thickness.

Type :

Seamless / ERW / Welded / Fabricated Pipes

Form :

Round, Square, Rectangular, Oval, Hydraulic Etc

End :

Plain End, Beveled End, Treaded

End Protection :

Plastic Caps

Packing :

Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests

Specials :

Sizes and Specifications other than above can be manufactured on request

Incoloy Pipe Specification :

ASTM B407, B514 / ASME SB407, SB514

Length :

Single Random, Double Random & Required Length

Inspection, Test Reports :

Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports

Chemical Composition of Inconel Alloy Seamless / Welded Pipes and Tubes

Grade	C	Mn	Si	S	Cu	Fe	Ni	Cr
Inconel 600	0.15 max	1.00 max	0.50 max	0.015max	0.50 max	6.00 – 10.00	72.00 min	14.00 – 17.00
Inconel 601	0.10 max	1.0 max	0.5 max	0.015 max	1.0 max	Balance	58.0 – 63.0	21.0 – 25.0
Inconel 625	0.10 max	0.50 max	0.50 max	0.015 max	-	5.0 max	58.0 min	20.0 - 23.0
Inconel 718	0.08 max	0.35 max	0.35 max	0.015 max	0.30 max	-	50.00 - 55.00	17.00 - 21.00

Mechanical Properties of Inconel Alloy 600/601/625/718 Pipes and Tubes

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Inconel 600	8.47 g/cm3	1413 C (2580 F)	Psi – 95,000 , MPa – 655	Psi – 45,000 , MPa – 310	40 %
Inconel 601	8.1 g/cm3	1411 C (2571 F)	Psi – 80,000 , MPa – 550	Psi – 30,000 , MPa – 205	30 %
Inconel 625	8.4 g/cm3	1350 C (2460 F)	Psi – 1,35,000 , MPa – 930	Psi – 75,000 , MPa – 517	42.5 %
Inconel 718	8.2 g/cm3	1350 C (2460 F)	Psi – 1,35,000 , MPa – 930	Psi – 75,000 , MPa – 482	45 %