Stainless Machined Parts

sa 240 304 tensile strength

 

 

 

Tensile Strength of SA 240 GR 304

The tensile strength of SA 240 GR 304, as specified by ASME SA 240 for annealed plates (8-75 mm thick), is the maximum stress the material can withstand before fracturing. The minimum tensile strength is:

  • Tensile Strength: ≥515 MPa (74.7 ksi)

This value ensures SA 240 GR 304 can handle significant loads, making it suitable for structural applications like pressure vessels, architectural panels, and plat SS 304 3mm. Cold-working (e.g., rolling) can significantly increase tensile strength (up to 900-1000 MPa in heavily cold-worked conditions), but it reduces ductility and may slightly affect SA 240 304 non magnetic properties. For detailed specifications, refer to our SS 304 data sheet.

 

Mechanical Properties Context

The tensile strength is part of SA 240 GR 304’s broader mechanical properties (annealed condition):

Property

Value (Minimum)

Notes

Tensile Strength

515 MPa (74.7 ksi)

Strength before fracture

Yield Strength (0.2% Offset)

205 MPa (29.7 ksi)

Stress at plastic deformation onset

Elongation (A5, 50 mm)

40%

High ductility for forming

Hardness (Brinell)

≤ 201 HB

Supports machinability

Hardness (Rockwell B)

≤ 92 HRB

Alternative hardness metric

*Source: ASME SA 240 and ASTM A240 standards, as of October 14, 2025.

  • Tensile Strength Significance: The ≥515 MPa tensile strength ensures SA 240 GR 304 can withstand pulling forces in applications like plat stainless 304, plate 2 mm SUS 304, or SA 240 GR 304 pipe, while its high elongation (≥40%) supports forming without cracking.

 

Factors Affecting Tensile Strength

  • Annealing vs. Cold-Working: Annealed SA 240 GR 304 has a minimum tensile strength of 515 MPa. Cold-working (e.g., for thin sheets or drawn wire) can increase tensile strength significantly, but it reduces ductility.
  • Temperature: Tensile strength decreases at high temperatures (e.g., ~400 MPa at 600°C), making sa 240 gr 304h better for elevated temperatures due to its higher carbon content.
  • Thickness: Thinner plates (e.g., plat SS 304 3mm) in cold-rolled forms may exhibit higher tensile strength due to work hardening compared to thicker plates.

 

Comparison with Other Grades

  • Vs. SA 240 GR 304L: Lower tensile strength (≥485 MPa) due to reduced carbon (≤0.03%), but better weldability. See sa 240 gr 304l.
  • Vs. SA 240 GR 316/316L: Similar tensile strength (≥515 MPa for 316, ≥485 MPa for 316L), but 316’s molybdenum enhances corrosion resistance, not strength. Explore sa 240 gr 316l.
  • Vs. SS204: SA 240 GR 304 outperforms SS204 vs SS 304 in tensile strength and corrosion resistance due to higher nickel content.
  • Vs. SA 240 GR 409: 409 (ferritic) has slightly lower tensile strength (~450-550 MPa) and poorer corrosion resistance.

For harsher environments, consider sa 240 gr 317l or sa 240 gr 321 for high-temperature stability.

 

Applications Leveraging SA 240 GR 304 Tensile Strength

The ≥515 MPa tensile strength supports SA 240 GR 304 in:

  • Structural Components: Pressure vessels and frameworks requiring robust load-bearing capacity.
  • Food Processing: Tanks and equipment (e.g., plat stainless 304) needing strength and hygiene.
  • Chemical Industry: Vessels and SA 240 GR 304 pipe for mild corrosives.
  • Architecture: Decorative panels with aesthetic and structural integrity.

Gangsteel offers competitive SS 304 plate price options for these applications, ensuring cost-effective solutions.

 

Pricing and Availability

As of October 14, 2025, SA 240 GR 304 plate prices (2B finish, 3-6mm thick) range from $1.55-$3.50/kg globally, influenced by nickel prices (~$15,325/t). Gangsteel offers competitive pricing at $1.60/kg FOB (MOQ 1 ton) for sa 240 gr 304 plates, including custom sizes like plate 2 mm SUS 304, with finishes like 2B, No.1, and polished.

 

Why Choose Gangsteel?

Gangsteel provides certified SA 240 GR 304 plates with reliable tensile strength and competitive SS 304 plate price. Our inventory includes SA 240 TP 304/304L dual-certified plates for versatility and supports global delivery for applications from plat stainless 304 to heavy plates. For quotes or to learn what is SA 240 304, visit our astm a 240 stainless plate page or email admin@gangsteel.com.

 

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