316 / 316L Stainless Steel Seamless Tubing

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  • 316 / 316L Stainless Steel Seamless Tubing
  • 316 / 316L Stainless Steel Seamless Tubing

PRODUCTS DETAILS

Type 316/316L is a chromium nickel austenitic stainless steel containing molybdenum. The molybdenum addition enhances the corrosion resistance over that of 304/304L in halide environments as well as in reducing acids such as sulfuric and phosphoric acid. Type 316L can be dual certified as 316 when the composition meets the lower carbon limit of 316L and the slightly higher strength levels of 316. Type 316L should be specified for welded applications as the low carbon version eliminates chromium carbide precipitation and enhances the corrosion resistance in the as-welded condition. Type 316/316L resists atmospheric corrosion as well as in moderately oxidizing environments. It also resists corrosion in marine atmospheres and has excellent resistance to intergranular corrosion in the as-welded condition. Type 316/316L has excellent strength and toughness at cryogenic temperatures. Type 316/316L is non-magnetic in the annealed condition but may become slightly magnetic as a result of severe cold working. Grade 316L, the low carbon version of 316 and has very high immunity from sensitization (grain boundary carbide precipitation). It is extensively used in the oil and gas and chemical industries for its cost effective corrosion resistance and ease of fabrication. There is commonly no appreciable price difference between 316 and 316L stainless steel. The austenitic structure also gives these grades excellent toughness, even down to cryogenic temperatures. Compared to chromiumnickel austenitic stainless steels, 316L stainless steel offers higher creep, stress to rupture and tensile strength at elevated temperatures. ASTM A269, ASTM A213 / ASME SA213 (Seamless)
Code Standard CHBMICAL COMPOSITION
C Si Mn P S Ni Cr Mo OTHER
316 JIS  SUS 316 0.080 max 1.00 max 2.00 max 0.040 max 0.030 max 10.00-14.00 16.00-18.00 2.00-3.00 -
AISI  316 0.080 max 1.00 max 2.00 max 0.045 max 0.030 max 10,00-14.00 16,00-18.00 2.00-3.00 -
ASTM  TP 316 0.080 max 0.75 max 2.00 max 0.040 max 0.030 max 11,00-14.00 16.00-18.00 2,00-3.00 -
DIN X5CrNiMo1810  Nr.1,4301 0.070 max 1.00 max 2.00 max 0.045 max 0.030 max 10.50-13.50 16,50-18.50 2.00-2.50 -
316L JIS SUS 316L 0.030 max 1.00 max 2.00 max 0.040 max 0.030 max 12.00-16.00 16.00-18.00 2.00-3.00 -
AISI 316L 0.030 max 1.00 max 2.00 max 0.045 max 0.030 max 10,00-14.00 16,00-18.00 2.00-3.00 -
ASTM  TP 316L 0.035 max 0.75 max 2.00 max 0.040 max 0.030 max 10.00-15.00 16.00-18.00 2.00-3.00 -
DIN X2CrNiMo1810  Nr.1,4404 0.030 max 1.00 max 2.00 max 0.045 max 0.030 max 11.00-14.00 16,50-18,50 2.00-2.50 -
O.D O.D Toleracne W.T Tolerance
Inch mm %
1/8" +0.08/-0 +/-10
1/4" +/-0.10 +/-10
Up to 1/2" +/-0.13 +/-15
1/2" to 1-1/2" , excl +/-0.13 +/-10
1-1/2" to 3-1/2" , excl +/-0.25 +/-10
Note: The tolerance can be negotiated according to the customer's specific requirements
Mechanical Properties 
Yield Strength 30 Ksi min
Tensile Strength 75 Ksi min
Elongation(2" min) 35%
Hardness(Rockwell B Scale) 90 HRB max
Maximum allowable pressure(unit: BAR)
Wall Thickness(mm)
    0.89 1.24 1.65 2.11 2.77 3.96 4.78
O.D(mm) 6.35 387 562 770 995      
9.53 249 356 491 646 868    
12.7 183 261 356 468 636    
19.05   170 229 299 403    
25.4   126 169 219 294 436 540
31.8     134 173 231 340 418
38.1     111 143 190 279 342
50.8     83 106 141 205 251

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