ASTM A312 TP316L Seamless Pipe 1.4404 Stainless Steel Pipe
Product Overview
ASTM A312 316/316L stainless steel round pipe pickled for marine applications, manufactured to meet rigorous industry standards including ASTM A249, ASTM A268, ASTM A269, and ASTM A312.
Product Specifications
- Material: 316 / 316L Stainless Steel
- Outer Diameter: 1.0-1220mm (1/8"-48")
- Wall Thickness: 0.1-150mm (SCH 5S-XXS)
- Length: 3m, 5.8m, 6m, 11.8m, or custom lengths as requested
- Surface Finish: Pickled, annealed, polished, bright, sand blast, hair line
316 vs 316L Stainless Steel Comparison
316 and 316L stainless steels are molybdenum-containing alloys with superior performance characteristics compared to 310 and 304 stainless steels. The molybdenum content in 316L is slightly higher, providing enhanced corrosion resistance. 316 stainless steel offers excellent resistance to chloride attack, making it ideal for marine environments. 316L stainless steel features a maximum carbon content of 0.03%, making it suitable for applications requiring maximum corrosion resistance without post-weld annealing.
Chemical Composition Comparison
| Material |
C |
Si |
Mn |
P |
S |
Ni |
Cr |
Mo |
N |
| 316 |
≤0.08 |
≤1.00 |
≤2.00 |
≤0.035 |
≤0.03 |
10.0~14.0 |
16.0~18.5 |
2.00~3.00 |
≤0.10 |
| 316L |
≤0.03 |
≤1.00 |
≤2.00 |
≤0.045 |
≤0.03 |
10.0~14.0 |
16.0~18.0 |
2.00~3.00 |
≤0.10 |
Mechanical Properties Comparison
| Grade |
UNS |
Tensile Strength (MPa) min |
Yield Strength (MPa) min |
Elongation (%) min |
Brinell Hardness (HB) max |
Rockwell Hardness (HRB) max |
| 316 |
S31600 |
515 |
205 |
40 |
217 |
95 |
| 316L |
S31603 |
485 |
170 |
40 |
217 |
95 |
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