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316L is a stainless steel grades, said the main containing Cr, Ni, Mo digital percentage probably contains (not accurate, probably only), 316L is the material corresponding US label, Sus 316L is corresponding to the Japanese label. Standard of our country as 022Cr17Ni12Mo2. (new standard) of old brand 00Cr17Ni14Mo2
316L - C: chemical composition of carbon less than 0.030 silicon Si: less than or equal to 1
Manganese: less than 2 Mn
316L S: less than 0.030 sulfur
P: less than 0.035 P
Chrome Cr:16.00 ~ 18
Ni Ni:12.00 ~ 16
Mo Mo:2.00 ~ 3
316L because of its excellent corrosion resistance is widely used in chemical industry, 316L is belong to 18-8 type austenitic stainless steel are derived, add the Mo element 2 ~ 3%. On the basis of 316L, and derived a lot of steel, such as adding a small amount of Ti derived after 316Ti, add a small amount of N derived after 316N, increased Ni, Mo content derived 317L.
The market of the existing 316L most is in accordance with the American Standard to production. Because of cost considerations, steel mills generally the Ni content of the products as much as possible to lower limit on. American standard regulation, Ni of 316L content for 10 ~ 14% day marks the regulation, Ni of 316L content for 12 ~ 15%. According to the minimum standard, American Standard and Japanese standard 2% of the difference in the Ni content, reflected in the price is quite huge, so customers in the purchase of 316L products still need to see, the product is according to ASTM or JIS standard.
Mo 316L content makes this kind of steel has excellent resistance to pitting corrosion, can be safely used in containing Cl - and halogen ion environment. As the main application of 316L is its chemical properties, surface inspection of steel on the requirements of 316L was slightly lower (relative to 304), higher on the surface of the customer must strengthen the surface inspection dynamics.
316L - Mechanical Properties of tensile strength B (MPa): 480
The yield strength of sigma 0.2 (MPa): 177
Elongation of 5 (%): 40
Section shrinkage (%): = 60 PSI
Hardness: = 187HB; = 90HRB; = 200HV
Hardness is less than or equal to 187HB = 90HRB = 200HV
Specific heat ratio (20 DEG C): 0.502J/ (g*K)
Thermal conductivity (W/ (m*K))
100 C 300 C 500 C
15.1 18.4 20.9
316L - heat treatment solution 1010 ~ 1150 DEG C fast cooling.
316L - metallographic organization characteristics for austenitic.
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