1.ASTM A213 TP304(1.4301) Stainless Steel Seamless Tube
TP304 (often referred to simply as 304 or 1.4301 according to the European EN standard) is a grade of austenitic stainless steel. Its defining characteristic is the balanced chromium (Cr) and nickel (Ni) content (18-20% Cr, 8-10.5% Ni), which grants it good general corrosion resistance and formability. It’s a widely used general-purpose stainless steel, favored for cost-effectiveness and versatility, filling the demand for reliable materials in conventional service conditions.
ASTM A213 TP304 Stainless Steel Seamless Tube is a versatile, cost-effective tubular product designed for general corrosive and moderate-temperature environments, commonly used in piping systems, heat exchangers, and structural components.
2.Chemical Composition(%)
|
Element
|
C
|
Si
|
Cr
|
Mn
|
P
|
S
|
Ni
|
|
Range
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≤0.080
|
≤0.75
|
18.00-20.00
|
≤2.00
|
≤0.045
|
≤0.030
|
8.00-11.00
|
3.Mechanical Properties
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Tensile Strength
|
Yield Strength
|
Hardness
|
Elongation
|
|
≥515 MPa
|
≥205 MPa
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≤ 192 HB
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≥40%
|
4.Equivalent Material of TP304
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ASTM/AISI
|
UNS NO
|
EN
|
ISO
|
JIS
|
GOST
|
|
TP304
|
S30400
|
1.4301
|
X5CrNi18-10
|
SUS304
|
08X18H10
|
5.TP304 vs. Similar Materials
1.TP304 vs. TP321: TP304 is more cost-effective and general-purpose, suitable for most conventional corrosive environments. But it’s not recommended for welded assemblies in the sensitization temperature range (450℃ to 850℃), where TP321 (titanium-stabilized) offers better intergranular corrosion resistance.
2.TP304 vs. TP304L: TP304L is the low-carbon (C ≤ 0.03%) version of TP304. The "L" boosts post-weld intergranular corrosion resistance, while TP304 has slightly higher strength and is preferred for non-welded/gently welded general service.
6.Application of ASTM A213 TP304 Stainless Steel Seamless Tube
1.Food & beverage industry: Storage tanks, piping, and processing equipment (valued for hygiene and resistance to food-grade media);
2.Chemical industry: Piping and heat exchanger tubes for non-severe corrosive fluids (e.g., neutral/weakly acidic solutions);
3.Construction industry: Decorative components, building piping, and exterior cladding (benefiting from aesthetic appeal and atmospheric corrosion resistance);
4.Others: Medical equipment parts, kitchenware, and general pressure piping components.
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