Stainless steel tube library: What is the difference between 022Cr17Ni12Mo2 and TP316L
Hit：652026-09-02 10:45:03
Stainless steel tube library: What is the difference between 022Cr17Ni12Mo2 and TP316L
022Cr17Ni12Mo2: It is commonly used in domestic projects such as chemical, pharmaceutical, and marine engineering, and meets the material admission requirements for special equipment and pressure pipelines in China.
TP316L: Commonly used for export projects, foreign-related offshore platforms, international oil and gas engineering, meeting the material certification requirements of international engineering systems such as ASME.
The mechanical properties of the two are completely consistent: tensile strength ≥ 480MPa, yield strength ≥ 177MPa, elongation ≥ 40%, hardness ≤ 187HB, both have excellent resistance to intergranular corrosion, pitting corrosion, and welding performance, and can be equivalently exchanged in most non severe foreign-related scenarios.
022Cr17Ni12Mo2: The national standard specifies that carbon content is ≤ 0.022%, nickel content is 10.00%~14.00%, and molybdenum content is 2.00%~3.00%.
TP316L: American standard carbon content ≤ 0.03%, nickel content 10.00%~14.00%, molybdenum content 2.00%~3.00%, carbon content limit slightly wider than the national standard requirements.
022Cr17Ni12Mo2: It can cover all forms of products such as round steel, steel plates, and steel pipes, and complies with domestic stainless steel universal standards such as GB/T 14976 and GB/T 9948.
TP316L: Only applicable to seamless/welded austenitic steel pipes, implementing international pipe specific standards such as ASME SA-312 and ASTM A312, with stricter requirements for non-destructive testing and dimensional tolerances of pipes.
022Cr17Ni12Mo2: The official grade under the Chinese national standard GB/T 20878 system, which directly reflects the upper limit/average content of carbon, chromium, nickel, and molybdenum. It is the legal identification for material selection in China.
TP316L: a pipe specific grade under the ASME/ASTM standard system in the United States. "TP" specifically refers to Tube/Pipe pipes, and "L" represents ultra-low carbon properties. It is a commonly used pipe identification in international engineering.
022Cr17Ni12Mo2 is essentially the same ultra-low carbon austenitic stainless steel named under different standard systems as TP316L. Its core components and properties are highly equivalent, with only differences in the execution of standards and application scenario details.
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