Inconel 600 alloy tubing vs Nickel 601 tubing

Both Inconel 600 and Inconel 601 alloy tubes are nickel-chromium alloys used in high-temperature environments, but Inconel 601 seamless tubes (with added aluminum) offer superior performance in high-temperature oxidation (e.g., for furnaces and heat treatment), forming a protective oxide layer. Inconel 600 welded tubes, on the other hand, have stronger resistance to chloride stress corrosion cracking (SCC), making them more suitable for humid, corrosive environments such as chemical processing and marine applications. For dry, high-temperature environments, choose 601 tubes; for harsh, aqueous/chemical corrosive environments, choose Nickel 600 tubes.

Is Inconel 600 magnetic?

Inconel 600 is non-magnetic and possesses excellent mechanical properties, combining high strength with good workability, and is easily welded. The cold-forming characteristics of the 600 alloy are similar to those of chromium-nickel stainless steel.

Inconel 600 and 601 alloy tubes are among the most commonly used and popular alloys in the Inconel superalloy series. They are renowned for their exceptional corrosion resistance, strength, durability, and high-temperature performance. The main difference between the two is that Inconel 600 tubes have a higher chromium content (minimum 15%), while Inconel 601 alloy tubes have a higher nickel content (minimum 85%). Both alloys exhibit high tensile strength at extreme temperatures, capable of withstanding temperatures up to 2200°F with minimal performance degradation, making them ideal for various industrial applications such as cryogenic storage tanks, nuclear reactors, and gas turbines. Furthermore, they possess excellent formability, allowing them to be fabricated into complex shapes while maintaining their structural integrity and surface finish.

Specification of Inconel Alloy 600, 601 Pipes

Pipe/Tube Specifications:ASTM B167, B517, B516 / ASME SB167, SB517, SB516

Dimentions:ASTM, ASME

Pipe Outside Diameter: 6.00 mm OD up to 914.4 mm OD, Sizes up to 24" NB available Ex-stock, OD Size Steel Tubes available Ex-stock

Tube Outside Diameter: 1/8" OD TO 2"OD 3MM OD TO 38 MM OD

Range:1/2" OD up to 5" OD, customs diameters also available

Type: Seamless / ERW / Welded / Capillary Tubes

Form: Round Tube, Square Tube, Rectangular Tube

Length: Single Random, Double Random & Required Length

End: Plain End, Beveled End, Treaded

End Protection: Plastic Caps

Finish: Annealed and Pickled, Polished, Bright Annealed, Cold Drawn

External Coating: 3LPE / 3LPP/ FBE/ DFBE/ PP

Equivalent Grades of Inconel Alloy 600, 601 Pipes

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

Chemical Composition of Inconel Alloy 600, 601 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

Alloy 600, 601 Pipes Mechanical Properties

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 %

Temperature Resistance of Inconel 600 and 601 Alloy Tubes:
One of the most important considerations when choosing Inconel 600 and Inconel 601 tubes is their temperature resistance. Inconel 600 tubes have a maximum operating temperature of 1150°C (2102°F), making them suitable for applications requiring high strength and excellent oxidation and carburization resistance at high temperatures. In contrast, Inconel 601 tubes have a maximum operating temperature of 1200°C (2192°F), making them more suitable for applications requiring high temperature and corrosion resistance in sulfur-containing environments.

Corrosion Resistance of Inconel 600 and 601 Alloy Tubes:
Both Inconel 600 and Inconel 601 alloy tubes exhibit excellent corrosion resistance in various environments. However, due to their different chemical compositions, their resistance to specific types of corrosion may differ. Inconel 600 welded tubes are resistant to sulfuric and hydrochloric acid corrosion but may be susceptible to stress corrosion cracking in chloride environments. On the other hand, Inconel 601 seamless tubes have greater resistance to stress corrosion cracking. They exhibit excellent corrosion resistance in sulfur-containing environments, making them an ideal choice for applications in the chemical processing industry.

Why Choose Gnee as Your Nickel-Based Alloy Supplier

✅ Over 18 years of export experience, products sold to more than 80 countries

✅ Certified by ISO, SGS, and BV

✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars

✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging

✅ Fast delivery within 7-15 days, supported by global logistics partners

📦 Packaging and Shipping

All stainless steel products are packaged using the following methods:

Wooden pallets or crates

Moisture-proof packaging

Labels with furnace number, standard, and size labels

Shipped worldwide by sea, air, or express