Name: ASTM B729 N08020/2.4660/Alloy20 Hastelloy Steel Semaless Pipe 100%ET UT HT
Brand: YUHONG
SKU: ASTM B729 ALLOY20 (NO8020 / 2.4660 )
Rating: 4.5 (135 reviews)

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

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	ASTM B729 ALLOY20 (NO8020 / 2.4660 )

Payment & Shipping Terms:

Minimum Order Quantity:	100KGS
Price:	NEGOTIABLE
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time:	Depends on quantity
Payment Terms:	L/C, T/T
Supply Ability:	ACCORDING TO CLIENT'S REQUIREMENT

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Detailed Product Description

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
High Light:	2.4660 Hastelloy Pipe , ASTM B729 Hastelloy Pipe , 100% UT Hastelloy Tube

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