Austenitic Stainless Steel Pipe

The nickel content is higher in austenitic than ferritic and martensitic stainless steels. The steel is non-magnetic, is hardened significantly by cold-working and is known for its high corrosion resistance, formability, weldability, and other fine mechanical properties.

Description

A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred - the niobium performs the same carbide stabilization task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.

Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.

Chemical Composition

Grade

C

Mn

Si

P

S

Cr

Mo

Ni

N

Other

321

min.
max

-
0.08

2.00

0.75

0.045

0.030

17.0
19.0

-

9.0
12.0

0.10

Ti=5(C+N)
0.70

321H

min.
max

0.04
0.10

2.00

0.75

0.045

0.030

17.0
19.0

-

9.0
12.0

-

Ti=4(C+N)
0.70

347

min.
max

0.08

2.00

0.75

0.045

0.030

17.0
19.0

-

9.0
13.0

-

Nb=10(C+N)
1.0

 

Mechanical Properties

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B) max

Brinell (HB) max

321

515

205

40

95

217

321H

515

205

40

95

217

347

515

205

40

92

201

 

 

Additional information
Keywords

Stainless Steel Pipe, Stainless Steel Tube, Stainless Steel Tubing

Size

Outside Diameter: 1/8''~24''; Wall Thickness: SCH 5 ~ Double Extra Heavy

Standard & Grade

ASTM A213/213M(ASME SA213/SA213M),ASTM A312/312M(ASME SA312/SA312M),ASTM A789/789M(ASME SA789/SA789M),ASTM A790/790M(ASME SA790/SA790M)

Ends

Plain end/Beveled, grooved, threaded and coupling, etc.

Delivery

Within 30 days and Depends on your order quantity

Payment

D/P

,

LC

,

OA

,

TT

Usage

In Chemical Industry, Coal, Oil Field Open Machine, Building Materials Heat-resistant Parts.

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Shipping & Delivery

Uses of packaging in the steel industry

Protective function

 - Prevent steel products from physical damage, such as collision, scratching and extrusion, during transport, storage and handling to avoid affecting the quality and appearance of the products.

- Insulate from external environmental factors, such as humid air, rain, dust, etc., to reduce the risk of rust and corrosion of steel and ensure the performance and service life of the products.

Wooden box packaging

- Use: Mainly used to protect some irregular shape, easy to damage or high requirements for packaging of steel products, such as precision parts and components.

- Specific description: the wooden box is made of thick wooden boards, and cushioning materials, such as foam, air cushion, etc., may be added inside to reduce the impact of vibration and collision on the product.

Anti-rust paper packaging

- Purpose: To prevent rust and corrosion of steel products, especially suitable for storage or transportation in a humid environment.

- Specific description: anti-rust paper usually contains rust inhibitors, can be in contact with the metal surface to form a protective film, blocking the erosion of moisture and oxygen.

Plastic film packaging

- Purpose: To provide basic protection against dust and moisture, commonly used for small steel products.

- Specific description: plastic film has a certain degree of flexibility and sealing, can be tightly wrapped in the product surface, effectively isolate the external environment.

Pallet packaging

- Purpose: To facilitate the stacking and handling of steel products, and improve logistics efficiency.

- Specific description: The pallet is usually made of wood or plastic, the steel products are placed on the pallet, and then the forklift and other tools can be used for handling and loading and unloading.

Factory container packing

- Purpose: It is used for mass transportation of iron and steel products, to protect the products and improve the utilization rate of transportation space.

- Specific description: Containers have a strong structure and good sealing, and can adapt to long-distance transportation and the conversion of multiple modes of transportation.

Anti-rust oil coating packaging

- Purpose: To form a layer of antirust oil film on the surface of steel and enhance the antirust ability.

- Specific description: evenly cover the steel surface with anti-rust oil by brushing or soaking to form a durable protective layer.

Metal Corner Protection Packaging

- Purpose: To protect the corners and edges of steel products from damage during handling and transportation.

- Specific description: Metal corner guards are usually installed on the corners of products, using welding, bolting and other methods to increase the strength and impact resistance of the corners.

Baling Steel's packaging will surely convey to you our dedication to quality. We understand the importance of packaging to the quality of steel products and transportation safety, so we strive for excellence in the selection of packaging materials, so that you do not have to worry about the loss of transportation, and fully feel our professionalism and dedication!