304L Stainless Steel Plate

304L Stainless Steel Plate

304L stainless steel plate 304L stainless steel is a versatile stainless steel that is widely used in the production of equipment and parts requiring good comprehensive performance (corrosion resistance and formability). Name: 304L stainless steel sheet, 304L stainless steel 8K plate Chemical...
Product description

304L Stainless Steel Plate

304L stainless steel is a versatile stainless steel that is widely used in the production of equipment and parts requiring good comprehensive performance (corrosion resistance and formability).

Name: 304L stainless steel sheet, 304L stainless steel 8K plate


Chemical Composition(%)

P ≤ 0.035

S ≤ 0.03

Cr: 18.0 ~ 20.0

Ni: 8.0 ~ 10.0


Mechanical Properties

Yield Strength (N/mm2) ≥ 205

Tensile Strength ≥ 520

Elongation(%) ≥ 40

Hardness HB ≤ 187; HRB ≤ 90; HV ≤ 200

Density: 7.93 g·cm3

Specific Heat ℃(20℃):0.502 J·(g·C)-1

Thermal conductivity λ/W(m·℃)-1(at the following temperature/℃)

20 100 500

12.1 16.3 21.4

Coefficient α/(10-6/℃) (/℃ between the following temperatures)

20~100 20~200 20~300 20~400

16.0 16.8 17.5 18.1

Resistivity 0.73 Ω·mm2·m-1

Melting Point 1398~1420℃


Defect Category

Raw material Defects 28 metal ball marks, marble veins, longitudinal hair laceration, foreign body pressure, pollution, creases, coiling bad

Cold rolling defects 30 rollers printing, roller surface roughness, roller vibration marks, crow's feet, fine wrinkles, wave type defects, pad paper pressure

Annealing pickling 32 over pickling, annealing pickling, due to pickling, due to annealing, pitting, rust, brush roll marks, rubber residue, leukoplakia, pickling fluid residue, furnace stop

Finishing Defects 30 Poor degreasing, grinding unevenness, stripes, burrs

 

Now the two most commonly used stainless steel 304,316 (or the corresponding Ude/European standard 1.4308, 1.4408), 316 and 304 in the chemical composition of the most important difference is 316 contain MO, and generally recognized that 316 corrosion resistance is better, than 304 in the high-temperature environment more corrosion resistance. Therefore, in the high-temperature environment, engineers will generally choose 316 of the material components. But in the thick sulfuric acid environment, the high temperature also must not use 316! Otherwise it would have been a big deal. The mechanics have learned the thread, remember to prevent the thread from biting dead at high temperatures, a dark solid lubricant that needs to be smeared: molybdenum disulfide (MoS2), from which it came to 2 conclusions not: [1]mo is indeed a high-temperature-resistant substance (know what crucible is molten gold?) Molybdenum Crucible! )。 [2]: Molybdenum is very easy to react with high valence sulfur ions to generate sulfide. So no stainless steel is super resistant to corrosion. In the final analysis, stainless steel is a piece of impurities (but these impurities can be more corrosion-resistant than steel) More steel, is steel can and other material reaction.


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