TP316LN/S31653/1.4429 Seamless Stainless Steel Pipe

TP316LN/S31653/1.4429 Chemical Composition

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	–

TP316LN/S31653/1.4429 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

TP316LN/S31653/1.4429 Applications

316LN stainless steel pipes, also known as UNS S31653, find applications in various industries due to their unique properties. Let’s explore where they are commonly used:

Food Processing Equipment:

316LN stainless steel pipes are often employed in the food processing industry.
Their superior corrosion resistance ensures safe handling of food products.

Chemical Plants:

In chemical plants, 316LN pipes are used for conveying corrosive chemicals, acids, and alkalis.
Their resistance to corrosion is crucial in aggressive environments.

Medical Instruments:

316LN stainless steel is suitable for manufacturing medical instruments and devices.
Its hygienic properties and durability meet stringent standards.

Marine Environments:

Shipbuilding and offshore platforms benefit from 316LN pipes.
The material withstands saltwater exposure and prevents rapid corrosion.

Oil & Petroleum Refining Equipment:

316LN pipes find use in oil refineries and petroleum processing.
Their resistance to aggressive media ensures reliable performance.

Remember that 316LN stainless steel combines strength, corrosion resistance, and versatility, making it valuable across diverse sectors!

One of our Services--Testing

EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
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Surface roughness and size measurement
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......

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One of our Services--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

TP316LN/S31653/1.4429 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.