Alloy 20 (UNS N08020) is an austenitic, nickel-iron-chromium based super alloy with additions of Copper and Molybdenum which provide resistance to hostile environments, pitting, and crevice corrosion. It is also stabilized with Columbium to minimize carbide precipitation during welding. Alloy 20 appears to fall between both the stainless and nickel categories as it contains characteristics of both. It was designed for maximum resistance to acid attack and demonstrates superior resistance to stress-corrosion cracking in boiling 20% to 40% sulfuric acid, and also has excellent general corrosion resistance to sulfuric acid and to chloride stress corrosion cracking. Alloy 20 has good mechanical properties at both ambient and elevated temperatures, up to approximately
930°F (500°C) and is readily fabricated by usual industrial processes.

Specifications

	Standard	Alloy 20
1	UNS	N08020
2	Werkstoff Nr.	2.4660

Technical data

Chemical Properties:

TYPE	C	Cr	Cu	Fe	Mn	Mo	Ni	P	Si	S	Nb (Cb)
Alloy 20 UNS N08020	0.07 max	min: 19.00 max: 21.00	min: 3.00 max: 4.00	Balance	2.00 max	min: 2.00 max: 3.00	min: 32.00 max: 38.00	0.045 max	1.00 max	0.035 max	8 XC min 1.00 max

Mechanical Properties:

Stabilized-Annealed Condition
Product Form	Tensile Strength, ksi (min)	Yield Strength, 0.2% offset ksi (min)	Elongation % (min)	Reduction of Area % (min)	Hardness Brinell (max)	Hardness Rockwell B (max)
Plate, Sheet	80	35	30	—	217	95
Bar	80	35	30	50	—	—

Density	8.1 g/cm3
Melting Point	1443 °C (2430 °F)

Features

Superior corrosion, pitting and crevice resistance
Contains Niobium for stabilization against sensitization and resultant intergranular corrosion
Excellent mechanical properties and fabricability
Minimal carbide precipitation during welding

Applications
Due to its high resistance to corrosion, Alloy 20 is used in chemical processing, food production, pharmaceutical, power generation and plastics applications. Valves, pumps and pressure systems are some of the most popular components where Alloy 20 is employed.

FAQ

Q: What's your MOQ(minimum order quantity)?

A: 5 ton,mixed acceptable .

Q: What's your packing methods?

A: Packed in bundle or bulk .

Q: What's your payment terms?

A: 30% in advance by T/T ,70% will be before shipment or against the BL copy under FOB/CIF/CFR

Safe LC can be accept

Q: What's your delivery time?

A: 7-20 working days after received the advance payment .

CUSTOMER TRANSACTION

Always adhere to the tenet of high quality, low cost, fast pace and excellent service. Shandong Chengshun Metal Materials Co., Ltd. is willing to cooperate sincerely with friends from all walks of life at home and abroad for common development.

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Factory Appearance

Shandong Chengshun Metal Materials Co., Ltd. is located in Jinan City, Shandong Province. It is a comprehensive company dealing in high-quality steel products, with a superior geographical location and very convenient transportation. The company has a complete and scientific quality system, and has been recognized by the industry for its integrity, strength and product quality.

Packing and shipping

Mainly exported to Europe, Southeast Asia, South Africa, the Middle East, Latin America and other countries and regions, the products are favored by Chinese and foreign users.

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PRODUCTION WORKSHOP

Stainless Steel Plate