Shandong Kuaima  Steel Co., Ltd.

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321stainless steel coil

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Product introduction

Product characteristics

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.

APPLICATIONS:

· Aerospace – piston engine manifolds

· Chemical Processing

· Expansion Joints

· Food Processing – equipment and storage

· Petroleum Refining – polythionic acid service

· Waste Treatment – thermal oxidizers

CORROSION RESISTANCE:

· exhibits good general corrosion resistance that is comparable to 304.

· developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) .

· can be used in most diluted organic acids at moderate temperatures .

· can be used in pure phosphoric acid at lower temperatures.

· can be used in up to 10% diluted solutions at elevated temperatures.

· resists polythionic acid stress corrosion cracking in hydrocarbon service.

· utilized in chloride or fluoride free caustic solutions at moderate temperatures.

· does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service.

COIL HOT FORMING:

· Working temperatures of 2100 – 2300°F (1149 – 1260°C) are recommended for forging, upsetting and other hot working processes.

· Alloy not suitable for work at temperatures below 1700°F (927°C).

· Material must be water quenched or fully annealed after working to re-attain maximum corrosion resistance.

COLD FORMING:

· Quite ductile and forms easily.

WELDING:

· Readily welded by most standard processes.

· Post weld heat treatment is not necessary

MACHINING:

· Hardening rate of 321 makes it less machinable than 410 stainless steel, but similar to 304



Place of Origin shandong, China
Brand Name kuaima
Application Building or structual steel
Type Steel Coil, Austenitic,Martenstic, Ferritic, Duplex,, stainless steel Steel Sheet
Standard AiSi, ASTM, bs, DIN, GB, JIS
Width 600mm-1250mm, 600mm-1500mm as required
Length Customers' Requirement, 1-12M as required
Grade 201,304,316 stainless steel, 200 series, 300 series, 400 series 904,duplex2205/2507
Surface Treatment Coated
Tolerance ±1%
Processing Service Bending, Welding, Decoiling, Cutting, Punching
Keyword Ss coil
Thickness 0.25-3mm as required
Surface No.1,No.4, BA, 2B, 8K, HL etc.
Use Metal Roofing Building Steel Material
Delivery time 15 Days
MOQ 1 Ton
Technique Cold Rolled
Special Use High-strength Steel Plate
Model Number 304 316 304L 316L etc.
Packaging Details Tied up with steel strips and wrapped with water proof paper<br><br>thick plates are packed separately, thin plate are packed in bundles
Port Tianjin Port/Shanghai Port

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  • Address:Liaocheng Economic and Technological Development Zone, Shandong Province, China

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