{"id":2167,"date":"2025-08-21T18:04:05","date_gmt":"2025-08-21T10:04:05","guid":{"rendered":"https:\/\/jblstainless.com\/?post_type=product&p=2167"},"modified":"2025-08-21T18:08:38","modified_gmt":"2025-08-21T10:08:38","slug":"304l-stainless-steel-seamless-pipe","status":"publish","type":"product","link":"https:\/\/jblstainless.com\/am\/304l-stainless-steel-seamless-pipe\/","title":{"rendered":"304L Stainless Steel Seamless Pipe"},"content":{"rendered":"
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304L stainless steel seamless pipe is a low-carbon (C\u22640.03%) austenitic stainless steel pipe, which helps to minimize the risk of intergranular corrosion during welding, manufactured through a seamless process, avoiding welding defects.<\/p>

304L stainless steel is a low-carbon variant of 304<\/span> <\/a>(carbon content \u2264 0.03%),the low-carbon design reduces chromium carbide precipitation,minimize the risk of intergranular corrosion during welding, significantly improves resistance to intergranular corrosion, especially in welded areas.<\/p>

304L Seamless Pipe is available in a variety of sizes and specifications that can be customized to meet customer needs, including different diameters, wall thicknesses and lengths. The surface treatments include annealed, pickled, polished and plated to meet different application requirements.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\"201<\/figure><\/div>
\"201<\/figure><\/div>
\"321<\/figure><\/div>
\"317<\/figure><\/div>
\"317<\/figure><\/div>
\"304L<\/figure><\/div>\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t
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304L Stainless Steel Seamless Pipe Specification<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Standard: ASTM A312<\/p>

Outdoor Diameter: 6.00 mm – 914.4 mm<\/p>

Wall Thickness: 1mm – 150mm<\/p>

Schedule: SCH5S, SCH10S, SCH40S, SCH80S, SCH160S, XS,SCH120,SCH160,etc<\/p>

Length: Single Random, Double Random & Required Length<\/p>

Type: Hot rolled, Cold rolled<\/p>

Surface: Polishing,annealing,pickling,bright; 2B, No.4, No.1, No.8, 8K, HL, Mirror<\/p>

End Finish: Plain End, Beveled End, Treaded<\/p>

Additional Service:\u00a0Custom cutting & beveling to spec lengths;\u00a0Size and Specifications can be manufactured as clients’ requirements<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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304L Stainless Steel Chemical Composition <\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Grade<\/td>C<\/td>Mn<\/td>Si<\/td>P<\/td>S<\/td>Cr<\/td>Mo<\/td>Ni<\/td>N<\/td><\/tr>
304L<\/td>min.<\/td>\u2013<\/td>\u2013<\/td>\u2013<\/td>\u2013<\/td>\u2013<\/td>18.0<\/td>\u2013<\/td>8.0<\/td>\u2013<\/td><\/tr>
max.<\/td>0.03<\/td>2.0<\/td>1.00<\/td>0.045<\/td>0.03<\/td>20.0<\/td>12.0<\/td>\u2013<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Mechanical Properties<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Grade<\/td>

Tensile Strength<\/p>

(MPa) min<\/p><\/td>

Yield Strength<\/p>

0.2% Proof (MPa) min<\/p><\/td>

Elongation<\/p>

(% in 50mm) min<\/p><\/td>

Hardness<\/td><\/tr>
Rockwell B (HR B) max<\/td>Brinell (HB) max<\/td><\/tr>
304L<\/td>485<\/td>170<\/td>40<\/td>92<\/td>201<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Physical Properties\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Grade<\/td>Density (kg\/m3<\/sup>)<\/td>Elastic Modulus (GPa)<\/td>Mean Coefficient of Thermal Expansion (m\/m\/\u2103)<\/td>Thermal Conductivity (W\/m.K)<\/td>Specific Heat
0-100\u2103 (J\/kg.K)<\/td>		Electrical Resistivity
(n.m)<\/td><\/tr>
0-100\u2103<\/td>0-315\u2103<\/td>0-538\u2103<\/td>at 100\u2103<\/td>at 500\u2103<\/td><\/tr>
304L<\/td>8000<\/td>193<\/td>17.2<\/td>17.8<\/td>18.4<\/td>16.2<\/td>21.5<\/td>500<\/td>720<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Manufacturing Process \n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  • Formed from a single billet of cold-drawn or hot-rolled steel, has a uniform, dense structure without welded seams.<\/li>
  • Conforms to ASTM A312\/A249 standards, suitable for high pressure and high temperature environments.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    Advantages over welded pipe \n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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    • Higher strength: seamless structure to withstand higher pressure, suitable for boilers and chemical equipment.<\/li>
    • Better precision: smooth inner wall, small dimensional tolerance, suitable for precision fluid transportation.<\/li>
    • Corrosion resistance: no welding defects, more uniform corrosion resistance.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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      Excellent corrosion resistance and weldability\n<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Low-carbon design reduces the risk of intergranular corrosion during welding and meets ASTM A312 standards. Maintains integrity over long periods, even in wet or chemical environments.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      High strength and durability<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Composed of 18-20% chromium and 8-12% nickel, it ensures stable performance under high temperature and high pressure, reducing the frequency of maintenance to save long-term cost.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Seamless reliability<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      Seamless design enhances the pipe’s ability to withstand pressure and avoid leakage, which is suitable for industries with strict hygiene and safety requirements, such as pharmaceutical and food industries.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Customization support<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      A wide range of sizes (OD DN6-DN600, wall thickness 0.5mm-50mm) and surface treatments (pickled, polished), available to meet the demand for non-standard sizes.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      304L Seamless Pipe Application<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      304L stainless steel seamless pipe is a widely used material in industry for its excellent corrosion resistance and mechanical properties.<\/p>

      • Chemical and Pharmaceutical: Acid-alkali transport pipelinesto ensure safety and no leakage.<\/li>
      • Food Processing: Sanitary pipelines meeting FDA standards for food safety.<\/li>
      • Energy Sector: High-temperature boilers and heat exchangers for stable performance.<\/li>
      • Construction and Marine: Structural supports resisting moisture corrosion.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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        304L Stainless Steel VS. 304 Stainless Steel<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        Feature<\/td>304L<\/b><\/td>304<\/b><\/td><\/tr>
        carbon centent<\/td>\u22640.03%<\/td>\u22640.08%<\/td><\/tr>
        welding performance<\/td>

        Resistant to carbide precipitation,<\/p>

        no annealing required<\/p><\/td>

        		Annealing required after welding<\/td><\/tr>
        Corrosion resistance<\/td>

        More resistant to intergranular corrosion<\/p>

        (especially in welds)<\/p><\/td>

        		Weaker<\/td><\/tr>
        Low temperature toughness<\/td>Better (for -196\u00b0C)<\/td>Limited<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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        How to choose 304L or 304 Stainless Steel<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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        • Welding or corrosive environments: 304L is required (to avoid weld failure)<\/li>
        • Non-welded structural parts: 304 is more economical (as architectural trim)<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

          304L stainless steel is the low carbon variant of 304, maximum carbon content is 0.03%, which reduces chromium carbide precipitation and significantly improves resistance to intergranular corrosion, especially in welded areas.<\/p>\n

          304L Stainless Steel Seamless Pipe are available in a variety of sizes and specifications that can be customized to meet customer needs, including different diameters, wall thicknesses and lengths.<\/p>","protected":false},"featured_media":1309,"template":"","meta":{"_eb_attr":""},"product_brand":[],"product_cat":[30],"product_tag":[],"class_list":["post-2167","product","type-product","status-publish","has-post-thumbnail","product_cat-stainless-steel-seamless-pipe","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product\/2167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":8,"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product\/2167\/revisions"}],"predecessor-version":[{"id":2175,"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product\/2167\/revisions\/2175"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/media\/1309"}],"wp:attachment":[{"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/media?parent=2167"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product_brand?post=2167"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product_cat?post=2167"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/jblstainless.com\/am\/wp-json\/wp\/v2\/product_tag?post=2167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}