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Products / Nickel Alloys / Incoloy 20 - Alloy 20 / Alloy 20 Forgings

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What is Incoloy 20 | Incoloy 20 Principal Features | Incoloy 20 Strength | Incoloy 20 Physical Properties | Incoloy 20 Price

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We are industrial suppliers of Nickel Alloy 200 Products
 

Alloy 20 is a nickel-chromium-molybdenum stainless steel alloy developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical, food, pharmaceutical, power generation, and plastics industries. Alloy 20 resists pitting and chloride ion corrosion and its copper content protects it from sulfuric acid. Alloy 20 is not a stainless steel but a nickel alloy (ASTM). Alloy 20 is often chosen to solve stress corrosion cracking problems, which may occur with 316L stainless. It is also known as Carpenter 20. Cast versions are designated CN7M.

Please note: we may supply special diameters in small quantities at request

Alloy 20 Forgings Manufacturer & Industrial Suppliers


UNS NICKEL MATERIAL GRADES
Nickel grade UNS Werkstoff DIN
CARPENTER or INCOLOY 20
or ALLOY 20
UNS N08020 24,660 Ni Cr 20 Cu Mo

Ni 35, Fe 37, Cr 20, Cu 3.5, Mo 2.5 Mn 2.00 C 0.07 Si 1.00 Cu 3.5 S 0.035 P 0.045

High Performance Alloys stocks and produces this grade in the following forms: Bar, wire, sheet, plate, coil, fasteners and forgings. Request quote on this grade. 

Overview

Alloy 20 is a highly alloyed iron-base nickel-chromium-molybdenum stainless steel developed primarily for use in the sulfuric acid related processes. Besides sulfuric acid related processes, some typical corrosion resistant applications for the alloy include chemical, pharmaceutical, food, plastics, synthetic fibers, pickling and FGD systems plus many others.

Although normally considered a stainless steel, it has been classified as a nickel base. 

Specifications

Form

Standard

Metal Type

UNS N08020

Bar

ASTM B473

Wire

ASTM B471

Sheet

ASTM B463

Plate

ASTM B463

Fitting

ASTM B366

Forging

ASTM B462

Weld Wire

ER320LR

Weld Electrode

E320LR


Chemistry

Chemical Requirements

Ni

Cr

Mo

Mn

C

Si

Fe

Max

38.00

21.00

3.00

2.00

0.07

1.00

Bal.

Min

32.00

19.00

2.00


Tensile Data

Mechanical Property Requirements

Ultimate Tensile, min.

Yield Strength,min. (0.2% OS)

Elong. in 2 in. ( 50.8 mm), min.%

R/A min.

Hardness

Cold Finished/Annealed

Min

80 KSi

35 KSi

30.0

50.0

Max

Min

551 Mpa

241 MPa

Max

Hot Finished/Annealed

Min

80 KSi

35 KSi

30.0

50.0

Max

Min

551 MPa

241 MPa

Max


Machining

MACHINING DATA
Carbide tools are suggested 
for rates better than 50% of Type 304.
Machining Type Suggested starting rates are:
Single Point turning : Roughing - 0.15" depth, 0.015"/rev feed -175 SFM 
Finishing - 0.025" depth, 0.007"/rev feed - 200 SFM
Drilling : 1/4" Dia hole - 0.004"/rev feed - 60 SFM 
1/2" Dia hole - 0.007"/rev feed - 60 SFM 
3/4" Dia hole - 0.010"/rev feed - 60 SFM
Reaming : Feed - same as drilling - 100 SFM
Side and Slot Milling : Roughing - 0.25" depth - 0.007"/tooth feed - 125SFM 
Finishing - 0.050" depth - 0.009"/tooth feed - 140SFM
These rates are for carbide tools, 
Type C-2 for roughing, drilling and reaming. 
Type C-3 for finishing.

CARPENTER® and 20Cb-3® are registered trademarks of Carpenter Technology


Alloy 20 Forgings Application
Alloy 20 Forgings Uses
  • Architecture and construction
  • Aerospace
  • Nuclear Power
  • Fertilizers
  • Valve & Pumps
  • Petrochemical
  • Motor industry
  • Food and drink
  • Electronics
  • Transport and traffic
  • Pulp and paper industry
  • Medicine
  • Energy industry
  • Chemicals industry
  • Nickel Alloy in Pulp and Paper
Alloy 20 Forgings Order & Packing Information
  Min. Order: 10 Pieces (or please enquire for your customized order)
Trade Terms: FOB, CIF
Payment Terms: L/C, T/T
Packing: as per requirement
Place of Origin: Mumbai, India
Means of Transport: Land, Ocean
Delivery Date: one or two week
Price: click here to check price
Package:
in wooden crate with plastic caps on each end.

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Available Stock at Kalikund Steel & Engineering Co.

Incoloy 20 - Alloy 20 Fittings Stock At a Glance:-

Incoloy 20 - Alloy 20 Flange Stock At a Glance:-

Incoloy 20 - Alloy 20 Fasteners Stock At a Glance:-

Incoloy 20 - Alloy 20 Butt- Welding Fittings Stock At a Glance:-

Incoloy 20 - Alloy 20 Forged Fittings - Type Thread Fittings Stock At a Glance:-

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Incoloy 20 - Alloy 20 OtherProduct Stock At a Glance:-

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More useful information

Incoloy 20 - Alloy 20 Composition

Nickel, 32.5-35%
Chromium, 19-21%
Carbon, 0.06% maximum
Copper, 3-4%
Molybdenum, 2-3%
Manganese, 2% maximum
Silicon, 1% maximum
Columbium, 1% maximum
Iron, 31-44% (balance)

Other Names

UNS N08020
DIN 2.4660
CN7M
Carpenter 20 CB 3TM
AL 20TM
Carlson Alloy C20TM
Nickelvac 23TM
Nicrofer 3620 NbTM

Specifications

ASTM B729, B464, B366, B463, B473, B462
ASME SB729, SB464, SB366, SB473, SB462
ANSI / ASTM A555-79
EN 2.4660
UNS N08020
Werkstoff 2.4660

     
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