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Yuhong Group Co.,Ltd

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City:ningbo

Province/State:zhejiang

Country/Region:china

Contact Person:MrJikin Cai

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China ASTM B729 N08020/2.4660/Alloy20 Hastelloy Steel Semaless Pipe 100%ET UT HT wholesale

Alloy20 Hastelloy Steel Semaless Pipe 100%ET UT HT

Name: ASTM B729 N0802024660Alloy20 Hastelloy Steel Semaless Pipe 100ET UT HT
Brand: YUHONG
Price: 1 USD

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Brand Name :YUHONG

Model Number :ASTM B729 ALLOY20 (NO8020 / 2.4660 )

Certification :ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Place of Origin :CHINA

MOQ :100KGS

Payment Terms :L/C, T/T

Delivery Time :Depends on quantity

Packaging Details :Ply-wooden Case /Iron Case/ Bundle with plastic Cap

Price :NEGOTIABLE

Supply Ability :ACCORDING TO CLIENT'S REQUIREMENT

Grade :ALLOY20 (NO8020 / 2.4660 )

Standard :ASTM B729/ASME SB729

Surface :Pickled And Annealed, Bright Annealed, Polished

End :Plain End, Bevelled End, Threaded

Type :Seamless

Inspection :ET, HT, UT , PMI

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Hastelloy Pipe ASTM B729 ALLOY20 ( NO8020 / 2.4660 ) 2" SCH40S 6M 100% ET / HT/ UT

Alloy 20 Pipe ASTM B729 N08020 DIN 17751 2.4660 is a high-corrosion resistant alloy, which shows very good resistance to phosphoric acid, nitric acid, sulfuric acid in chloric media. DIN 17751 2.4660 Alloy 20 is chiefly used in the chemical industry, apparatus engineering and heat exchanger.

Alloy 20 was designed specifically to withstand sulfuric acid. Its nickel, chromium, molybdenum and copper levels all provide excellent general corrosion resistance. Restricted carbon plus columbium stabilization permits welded fabrications to be used in corrosive environments, normally without post-weld heat treatment. At 33% nickel, Alloy 20 has practical immunity to chloride stress corrosion cracking. This alloy is often chosen to solve SCC problems, which may occur with 316L stainless.

Chemistry

ASME SB 729 N08020 Alloy 20 Pipe Chemical Composition

Alloy

Nb+Ta

ASME SB 729 N08020

min.

–

32.00

19.00

2.00

3.00

8×C

Rest

max.

0.07

2.00

0.045

0.035

1.00

38.00

21.00

3.00

4.00

1.00

DIN 17744 2.4660 Alloy 20 Tube Chemical Composition

Alloy

Nb+Ta

DIN 17751 2.4660

min.

32.0

–

19.0

3.0

Rest

–

2.0

8×C

–

max.

38.0

0.07

1.5

21.0

4.0

–

2.0

3.0

1.00

0.025

0.015

1.00

ASME SB 729 N08020 Alloy 20 Pipe Mechanical Properties

Alloy	Tensile strength Rm N/mm² ksi (MPa) min	Yield strength Rp0. 2N/mm² ksi (MPa) min	Elongation in 2in. (50.8mm) or 4D min, %
ASME SB 729 N08020	80 (550)	35 (240)	30.0

Specifications

ASME SA 240, ASME SB 366, ASME SB 463
ASTM A 240, ASTM B 366
ASTM B 463
ASTM B 473
EN 2.4660
UNS N08020
Werkstoff 2.4660

Inventory

Alloy 20 Coil, Alloy 20 Plate, Alloy 20 Sheet, Alloy 20 Weld Wire, Alloy20 Pipe , Alloy20 Tube , Alloy 20 Flange , Alloy20 Fitting

Features

Excellent resistance to hot sulfuric acid
Resistant to intergranular corrosion in the as-welded condition
Chloride stress corrosion cracking resistance

Applications

Sulfuric acid pickling tanks, racks and heating coils
Phosphate coating drums and racks
Heat exchangers
Bubble caps
Process piping
Mixing tanks
Chemical and petroleum process equipment

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