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Stainless Steel 321,321H
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Stainless Steel 321,321H
Product Introduction
Alloy 321 (UNS S32100) is a titanium stabilized austenitic stainless steel with good general corrosion resistance. It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also possesses good low temperature toughness.
Alloy 321H (UNS S 32109) is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.
Alloy 321 cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.
Common Applications
-
Aerospace – piston engine manifolds
-
Chemical Processing
-
Expansion Joints
-
Food Processing – equipment and storage
-
Petroleum Refining – polythionic acid service
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Waste Treatment – thermal oxidizers
Technical Data
Chemical Properties:
|
% |
Cr |
Ni |
C |
Si |
Mn |
P |
S |
N |
Ti |
Fe |
|
321 |
min:17.0 |
min: 9.0 |
max:0.08 |
max:0.75 |
max:2.0 |
max:0.045 |
max:0.03 |
max:0.10 |
min:5*(C+N) |
Balance |
|
321H |
min:17.0 |
min: 9.0 |
min:0.04 |
min:18.0 |
max:2.0 |
max:0.045 |
max:0.03 |
max:0.10 |
min:5*(C+N) |
Balance |
Mechanical Properties:
|
Grade |
Tensile Strength |
Yield Strength 0.2% |
Elongation - |
Hardness |
|
321 |
75 |
30 |
40 |
217 |
Physical Properties:
|
Denstiy |
Coefficient of |
Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F |
Specific Heat BTU/lbm -°F |
Modules of Elasticity (annealed)2-psi |
|
at 68 °F |
at 68 – 212°F |
at 68 – 1832°F |
at 200°F |
at 32 – 212°F |
in tension (E) |
|
0.286 |
9.2 |
20.5 |
9.3 |
0.12 |
28 x 106 |
Factory video
Shandong Mingding Supply Chain Management Service Co., Ltd. was established in 2013, focusing on the production, processing and trade of metal materials. We have a professional team to provide quality service, we sincerely welcome customers at home and abroad to visit our company for guidance and long-term cooperation.
Warehouse storage
The company has the most advanced production equipment and automatic control system, to ensure the most reliable product quality. In addition, we also have a professional international trade and logistics team. With quality products and excellent service, we have established a large number of long-term customers all over the world.
Packing and delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Production Technology
Our main products include high quality carbon steel, stainless steel products,galvanized steel products, aluminum and copper. We can also provide cutting, punching, bending, polishing, shearing, wire drawing and other related service.
Honor
Application
Our company is set production processing and trade as one. The company has the most advanced production equipment and automatic control system, to ensure reliable product quality and sufficient supply capacity. Our main products are stainless steel, silicon steel, galvanized steel, carbon steel, aluminum products and other series. Applicable to engineering, coal mining, shipping, aviation, boiler, machinery, military and other fields. We sincerely welcome customers from all over the world to visit our company to discuss long-term cooperation.
Architectural field
Architectural field
Automotive field
Automotive field
Aviation field
Aviation field
Chemical industry field
Chemical industry field
FAQ
How do you package the product?
The inner layer is covered with waterproof paper, packed in iron and secured by fumigated wooden brackets. It can effectively protect products from corrosion in the process of sea sample transportation.
Are the products inspected before shipment?
Of course. All our products go through strict quality tests before they are packed. Those that fail will be destroyed.
Can I visit your factory?
Of course. We welcome customers from all over the world to visit our factory.
What certifications have your products passed?
We have ISO 9001, SGS, EWC and other certifications.
Can you provide samples?
Of course, we can send samples all over the world. Our samples are free of charge, but the customer needs to bear the Courier charge
What is the loading port?
Normally, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. You can choose other ports according to your needs.
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Message
Add：Shan Gang Building, 61-11 South Gongye Road, Jinan Area, China (Shandong) Pilot Free Trade Zone
MD Steel
Message
info@mingdingsteel.com
+8615553113555