how can you tell if stainless steel is 304

How Can You Tell if Stainless Steel is 304?

What is Stainless Steel 304?

Stainless steel 304 is an austenitic alloy with 18% chromium and 8% nickel, known for corrosion resistance and strength. To identify it, check for non-magnetic properties, as ss 304 non magnetic is a key trait. Use chemical tests or spark analysis for confirmation.

Chemical Testing for Stainless Steel 304

A molybdenum drop test can distinguish 304 from 316 (positive for 316). For sa-240-304 material, it should be negative. Nitric acid test shows no reaction for 304.

Magnet Test for Stainless Steel 304

Since 304 is non-magnetic, a magnet won't stick. If it does, it's not 304 (e.g., 430 is magnetic). Cold-worked sa240 304 stainless may show weak magnetism.

Spark Test for Stainless Steel 304

Grind the steel—304 produces few orange sparks. Ferritic steels have bushy sparks. This helps identify sa 240 gr 304 plate.

Density and Hardness Check for Stainless Steel 304

Ss 304 plate densityis 7.93 g/cm³. Hardness is around 201 HBW. Measure to confirm sa 240 304l density or sa 240 304 material.

Certification and Labeling for Stainless Steel 304

Look for stamps like AISI 304 or UNS S30400. Mill test certificates confirm specs for material sa 240 304.

Applications Where Identification Matters

For sa 240 gr 304 pipe or sa 240 type 304 304l, identification ensures corrosion resistance. Wrong grade like 201 (ss204 vs ss 304) can fail.

Price and Availability Considerations

Ss sheet 304 priceand ss 304 plate price range $1,820-$3,584/MT. Gangsteel offers competitive rates for sa240-304 material.

Comparing with Other Grades

Sa-240 type 304vs 316: 304 for general, 316 for chlorides. Sa240 grade 304 vs 430: 304 non-magnetic.

Why Choose Gangsteel for Stainless Steel 304?

Gangsteel provides certified 304 with quality assurance. Contact for ASME SA240 stainless steel plates.

FAQ

What is SA 240 304?

What is sa 240 304is ASME SA240 Grade 304 stainless steel.

What is 240 steel?

What is 240 steelis the SA240 specification for stainless steel.

What is SA304?

What is SA 304is likely SA240 Grade 304.

What is the density of SA 240 304L?

Sa 240 304l densityis 7.93 g/cm³.

What is SA240 material?

What is SA240is the ASME standard for stainless steel like SA240 material.

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