China Nickel Alloy Pipe manufacturer


TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes, Monel, Inconel, Incoloy and nickel.


September 22, 2021

150# Pressure Forged NipoFlanges SCH40S Thickness Alloy 601 Heat Resistance

Alloy 601 Nickel Alloy Steel Flange Nipo Flange UNS N06601 DIN W. NR. 2.4851



ASME/ANSI B16.5 stainless steel RF nipo-flange


Nipoflange is used in the pipe industry like a weldolet or a nipolet for a 90° branch connection.

A Nipoflange is a combination of weldolet, nipolet and flange.

Two different pipe branch connectionsOn the run pipe side a nipoflange is designed like a weldolet.

That means the branch connection on the run pipe side is a welding connection. On the other side there

it has a flange connection. The flange connection can be designed according to customers requirements

(acc. To DIN or ANSI).




Alloy 601 is a general-purpose nickel-chromium-iron engineering material for applications where resistance

to heat and corrosion is required. The alloy is very resistant to high-temperature oxidation – up to 2200 º F –

and has good resistance to aqueous corrosion. The alloy retains good strength at elevated temperatures.


Alloy Inconel 601 was designed to withstand high temperature exposure and severe corrosive conditions.

The alloy is not embrittled by long exposure to high temperatures, thanks to the nickel, chromium and aluminium

contents that together form a protective and adherent oxide film.


Product Description


Product Name Nipo Flange
Standard ASME/ANSI B16.5/16.36/16.47A/16.47B/B16.48, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Type Special Flange: According to the drawing Picture

Copper Nickel Alloy: ASTM B466 UNS C70600, ASTM B466 UNS C71500, CUNI90/10, CUNI70/30

Nickel Alloy: ASTM/ASME S/B366 UNS N08020, N04400, N06600, N06625, N08800, N08810, N08825, N10276,N10665,N10675
Super Stainless Steel: ASTM/ASME S/A182 F44, F904L, F317L, UNS S32750, UNS S32760
Stainless steel: ASTM/ASME S/A182 F304, F304L, F304H, F316, F316L, F321, F321H, F347H
Duplex Steel: ASTM A182 F51, F53, F55, UNS S31803, UNS S31254
Alloy Steel: ASTM/ASME S/ A182 F11, F12, F22, F5, F9, F91

Carbon Steel: ASTM/ASME S/A105, ASTM/ASME S/A350 LF2, ASTM/ASME S/A694/A694M, F42, F52, F56, F60, F65, F70....


Dimension (150#,300#,600#): DN15-DN1500
900# : DN15-DN1000
1500#: DN15-DN600
2500#:D N15-DN300
Test Chemical Component Analysis, Mechanical Properties, Metallurgical Analysis, Impact Testing, Hardness testing , Ferrite Testing, Inter granular corrosion testing, X-ray Inspection (RT), PMI, PT, UT, HIC & SSC test, etc. or as your requirement
Certificates API, ISO, SGS, BV, CE, PED, KOC, CCRC, PDO, CH2M HILL and etc.

1. Abundant stock and prompt delivery

2. Reasonable for whole packages and processes.
3. 15 years' QC team service & sales management API& ASTM trained engineers.

4. More than 150 customers spread worldwide. (Petrofac, G.S Engineer, Fluor, Hyundai Heavy industry, Kuwait National Oil, Petrobras, PDVSA, Petrol Ecuador, SHELL, etc.)


Ni Nickel 58 – 63
Cr Chromium 21 – 25
Al Aluminum 1.0 – 1.7
C Carbon 0.10 max
Mn Managanese 1.0 max
S Sulfur 0.015 max
Si Silicon 0.50 max
Cu Copper 1.0 max
Fe Iron Remainder




The heat resistance and corrosion resistance of Inconel 601 make it suitable for furnace parts in such operations

as annealing, carburizing, nitriding and other heat-treatment operations. The alloy is used in chemical processing

equipment and petrochemical processing equipment where its excellent corrosion resistance comes into full play.

The alloy is also used in nitric acid production.


Further important applications of this alloy are to be found in the pollution control, aerospace – where it is used

in jet-engine igniters – and power generation industries.


Other Products


Nickel Alloys WNRF Flanges : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276

Copper Alloys WNRF Flanges: Copper, Brass & Gunmetal

Incoloy Alloy Steel Flange : ASTM AB564 ,NO8800/ Alloy800, NO8810/ Alloy 800H, NO8811/Alloy 800HT

Hastelloy Steel Flange: ASTM AB564 , C276/ NO10276 , Monel Alloy 400 /NO4400, K500/NO5500,


FORGING Alloy 601


Inconel 601 is best forged, for large deformations, between 2250 and 1900 º F, but forging may be continued

to 1650 º F. The alloy shows low ductility between 1600 and 1200 º F and should not be forged in this temperature range.




Alloy 601 cannot be hardened by heat treatment and only cold working will improve room-temperature strength.

Contact Details