Grados equivalentes del acero inoxidable S31608
Composición química (fracción en masa, % en peso) del acero S31608
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Propiedades mecánicas del grado de acero S31608
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Propiedades físicas del grado de acero S31608
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Diferencia entre S31608 y 316L
La principal diferencia entre 316L (UNS S31603) y 316 (UNS S31600) es el contenido de carbono; el 316L tiene menor carbono (máx. 0.03 %) que el 316 (máx. 0.08 %), lo que hace que el 316L sea superior para soldadura, ya que resiste mejor la "corrosión en la zona afectada por el calor" (corrosión intergranular), mientras que el 316 ofrece ligeramente mayor resistencia y dureza, pero a menudo necesita tratamiento posterior a la soldadura, por lo que el 316L es preferido para aplicaciones soldadas o sanitarias.
S31608 es la designación del grado para el acero inoxidable 316 en el estándar nacional chino (GB/T 20878). El rango de composición del ASTM 316 (UNS S31600) bajo la norma ASTM A240/A312 es esencialmente el mismo que el de S31608, pero el límite superior de carbono es ligeramente más amplio (también ≤ 0.08 %). La norma ASTM especifica contenido de azufre ≤ 0.030–0.035 % según la forma del producto. Ambas normas especifican una resistencia mínima a la tracción de 515 MPa, un límite elástico de 205 MPa y un alargamiento de 40 %. Son intercambiables en la mayoría de aplicaciones. Las principales diferencias radican en los sistemas de normas y requisitos de certificación regionales, más que en las propiedades intrínsecas del material.
Si tienes requisitos de proyecto para barras de acero inoxidable S31608, te invitamos a realizar tu pedido. GNEE cuenta con un gran inventario de productos populares para que elijas. Puede procesarse en diversas formas prácticas de producto, incluyendo placas, bobinas, tubos, barras y alambres. Para obtener información detallada de composición química y muestras gratuitas, por favor contacta inmediatamente a nuestra fábrica. Ofrecemos precios competitivos y un excelente servicio.
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What is material code S31608?
Dec 11, 2025
View: 105
What is S31608 material?
S31608 is an austenitic stainless steel grade, essentially the Chinese standard (GB/T 20878) designation for AISI 316 or European EN 1.4401, known for excellent corrosion resistance, especially against chlorides, due to added molybdenum; it offers good high-temperature strength and is used in various forms like pipes, sheets, and bars for demanding applications, particularly where pitting and crevice corrosion are concerns.
S31608 stainless steel equivalent grades
S31608 is the UNS number for Type 316H Stainless Steel, a higher carbon version of 316, with key equivalents being ASTM 316H, EN 1.4401/1.4919, and often associated with DIN X5CrNiMo17-12-2 (which is closer to standard 316/1.4401), with JIS SUS 316 as a general counterpart, all offering excellent corrosion resistance due to Molybdenum.
Chemical composition (mass fraction, wt.%) of S31608
| C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Ni(%) | Mo(%) |
|---|---|---|---|---|---|---|---|
| 0.08 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
Mechanical Properties of steel grade S31608
| Yield Rₚ₀.₂ (MPa) | Tensile Rₘ (MPa) | Impact KV/Ku (J) | Elongation A(%) | Reduction in cross section on fracture Z(%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 812 (≥) | 417 (≥) | 34 | 33 | 24 |
Physical Properties of steel grade S31608
| Temperature (℃) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10⁻⁶/(℃) between 20(℃) and | Thermal conductivity (W/m·℃) | Specific thermal capacity (J/kg·℃) | Specific electrical resistivity (Ω·mm²/m) | Density (kg/dm³) | Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 32 | - | - | - | 0.12 | - | - | - |
| 916 | 634 | - | 14.3 | 212 | - | - | - |
| 272 | - | 24 | 42.2 |
S31608 vs 316L difference
The main difference between 316L (UNS S31603) and 316 (UNS S31600) is carbon content; 316L has lower carbon (max 0.03%) than 316 (max 0.08%), making 316L superior for welding as it resists "weld decay" (intergranular corrosion) better, while 316 offers slightly higher strength and hardness, but often needs post-weld treatment, making 316L the go-to for welded or sanitary applications.
S31608 vs ASTM 316 difference
S31608 is the grade designation for 316 stainless steel in the Chinese national standard (GB/T 20878). The compositional range of ASTM 316 (UNS S31600) under the ASTM A240/A312 standard is essentially the same as S31608, but the upper limit for carbon content is slightly wider (also ≤0.08%). The ASTM standard specifies sulfur content as ≤0.030–0.035% depending on the product form. Both standards specify a minimum tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. They are interchangeable in most applications. The main differences lie in the standard systems and regional certification requirements, rather than in the inherent properties of the material itself.
If you have project requirements for S31608 stainless steel bars, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, and wires. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.
