What is astm a240 type 321 stainless steel plate？

What is astm a240 type 321 stainless steel plate?

ASTM A240 Type 321 refers to a standard for chromium-nickel stainless steel plates, sheets, and strips, which are stabilized with titanium. This titanium content prevents intergranular corrosion and carbide precipitation during welding. Type 321 is an austenitic stainless steel with good resistance to oxidation and superior creep and rupture strength at high temperatures compared to alloys like 304/304L, making it suitable for high-temperature applications such as in aircraft exhaust systems and heat exchangers.

 

 

Stainless Steel 321 sheets Chemical Formula

Grade	Carbon	Manganese	Silicon	Phosphorous	Sulfur	Chromium	Nitrogen	Nickel	Titanium
321 stainless steel	0.08 maximum	2.0 maximum	1.0 maximum	0.045 maximum	0.030 maximum	17.00 – 19.00	0.10 maximum	9.00 – 12.00	5(C+N) – 0.70 maximum

 

SS UNS S32100 Plates Mechanical Behaviour

Melting Point	Density	Tensile Strength	Elongation	Yield Strength
1457°C	8.0 gram per CM	Psi=75000, MPa=515	35 %	Psi=30000, MPa=205

 

Physical properties of Stainless Steel 321 plate

Grade	Density Kg per meter	Elastic Modulus	Mean Co-eff of Thermal Expansion			Thermal Conductivity		Specific Heat 0 to 100°C	Elec Resistivity
			0 To 100°C	0 To 315°C	0 To 538°C	At 100°C	At 500°C
321 stainless steel	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

 

What's the difference between 321 stainless steel plate and 304?

The main difference is that 321 stainless steel contains titanium, which stabilizes it and provides superior resistance to intergranular corrosion and higher temperature strength compared to 304 stainless steel. 304 is a versatile, austenitic stainless steel suitable for general applications, while 321 is used in high-temperature environments, such as aircraft exhaust manifolds, due to its enhanced stability and resistance to heat-induced sensitization.

 

GNEE is a supplier of 321 stainless steel plate, stocking plate in a variety of finishes. 321 Austenitic Stainless Steel is dual certified and one supplier offers all grades in cut-to-length plates, saving you additional costs. It can be processed into a variety of practical product forms, including hot-rolled and cold-rolled. For detailed chemical composition and free samples, please contact our factory today. We provide competitive pricing and excellent service.

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Standard Specification Of Stainless Steel 321 Sheet

Specifications	ASTM A240 and ASME SA240
Thickness in Mm	4 To 100
Width in MM	1800, 3500, 1000, 1500, 2000, 3000, 2500, 1219
Form	Chequered Plate, Ring, Blank, Strip, Shim Sheet, Coils, Perforated Sheet, Rolls, Plain Sheet, Flats, Foils suppliers and Manufacturer
Length in Mm	2440, 2000, 5800, 6000, 3000,
Surface	BA, embossed, Brush, mirror, NO.8, checkered, 8K, NO.1, 2B, sand-blast, NO.4, hair-line, etching, 2D
Hardness	Soft, Spring Hard, Half Hard, Hard, Quarter Hard
Finish	Hot rolled, 2B, SATIN, 2D, Cold rolled, BA, NO(8)

 

Packing Details : Export standard package,bundled or be required.

The inner size of container is below:

20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high)

40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high)

40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high)

Delivery Details : 7-15 dyas,or according to the order quantity or upon negotiation