|
Grade |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
N |
Other |
|
316 |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.00 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
– |
– |
|
316L |
≤0.035 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.00 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
– |
– |
|
316H |
0.04-0.10 |
≤2.00 |
≤0.045 |
≤0.03 |
≤1.00 |
16.00-18.00 |
11.00-14.00 |
2.00-3.00 |
– |
– |
|
316Ti |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.015 |
≤0.75 |
16.00-18.00 |
10.00-14.00 |
2.00-3.00 |
≤0.10 |
Ti:5×(C%+N)-0.7 |
|
316N |
≤0.08 |
≤2.00 |
≤0.045 |
≤0.03 |
≤2.00 |
16.00-18.00 |
10.00-13.00 |
2.00-3.00 |
0.10-0.16 |
– |
|
316LN |
≤0.035 |
≤2.00 |
≤0.045 |
≤0.015 |
≤0.015 |
16.00-18.00 |
10.00-13.00 |
2.00-2.50 |
0.10-0.16 |
– |
Chemical Composition
Mechanical Properties
|
Grade |
Tensile Strength ksi(MPa) |
Yield Strength ksi(MPa) |
Elongation,% |
Hardness |
|
|
Rockwell B (HRB) |
Brinell (HB) |
||||
|
316LN |
≥75(515) |
≥30(205) |
≥35 |
≤95 |
≤217 |
Applications
- Orthopaedic implants
- Chemical pipelines
- Pharmaceutical applications
- Chemical and cryogenic tanks
- Surgical instruments
Testing
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% Radiography Test Report
- 100% PMI
- Heat Treatment Charts
- Third Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate( Impact Testing, Flatten, Spin,Curve, Hardness, Intergranular ,Point corrosions, Grain size, ET,UT, HT...)
- Laboratory Test Certificate from Govt. Approved Lab
- ......
End of Pipe and Tube
- BE : Beveled end
- BBE : Bevel both ends
- BLE : Bevel large end
- BSE : Bevel small end
- TOE / POE = Treaded One End / Plain One End
- TOE / BOE = Treaded One End / Beveled One End
- POE / BOE = Plain One End / Beveled One End
- TBE = Treaded Both Ends
- PBE = Plain Both Ends
Packing
- Ply Wooden Boxes
- PE Fabric Bundles
- Standard seaworthy export packing
- Plastic Bags, or as required
Marking
- Supplier / Manufacturer Name or Custom Logo - on request
- Specification
- Material Grade
- Nominal Size
- Schedule or Wall Thickness
- Method of Manufacturing (Seamless or Welded)
- Heat Number
Marked Pipe Sample: XTD ASTM A312 UNS31635 SEAMLESS 42.2x 3.56*6000MM HEAT NO. 2023121205A15
Material Summary
316LN (UNS S31653) is a low-carbon, nitrogen-enhanced version of Type 316 molybdenum-bearing austenitic stainless steel. The Type 316 alloys are more resistant to general corrosion and pitting/crevice corrosion than the conventional chromium-nickel austenitic stainless steels such as Type 304. They also offer higher creep, stress-rupture and tensile strength at elevated temperature. The nitrogen in Type 316LN adds additional resistance to sensitization in some circumstances.
The nitrogen content of Type 316LN stainless steel also provides some solid solution hardening, raising its minimum specified yield strength compared to Type 316L stainless steel. Like Types 316 and 316L, the Type 316LN alloy also offers good resistance to general corrosion and pitting/crevice corrosion.
Main properties of 316LN are: high ductility, good weldability. Typical applications are food and beverage processing industry, chemical industry and chemical tankers.
