Welcome to our websites!

304LN stainless steel coiled tube chemical composistion

stainless steel coil tubes(6)(1)

Stainless Steel – Grade 304LN (UNS S30453)

Introduction

Stainless steel grade 304 is the most commonly used stainless steel. Stainless steel grade 304LN is a nitrogen-strengthened version of stainless steel grade 304.

The following datasheet provides an overview of grade 304LN stainless steel.

Chemical Composition

304LN stainless steel coiled tube chemical composistion

The chemical composition of grade 304LN stainless steel is outlined in the following table.

Element

Content (%)

Chromium, Cr

18-20

Nickel, Ni

8-12

Manganese, Mn

2 max

Silicon, Si

1 max

Nitrogen, N

0.1-0.16

Phosphorous, P

0.045 max

Carbon, C

0.03 max

Sulfur, S

0.03 max

Iron, Fe

Remainder

Mechanical Properties

304LN stainless steel coiled tube chemical composistion

The mechanical properties of grade 304LN stainless steel are displayed in the following table.

Properties

Metric

Imperial

Tensile strength

515 MPa

74694 psi

Yield strength

205 MPa

29732 psi

Elongation at break (in 50 mm)

40%

40%

Hardness, Brinell

217

217

Hardness, Rockwell B

95

95

Other Designations

Equivalent materials to grade 304LN stainless steel are given below.

ASTM A182

ASTM A213

ASTM A269

ASTM A312

ASTM A376

ASTM A240

ASTM A249

ASTM A276

ASTM A336

ASTM A403

ASTM A193 (B8LN, B8LNA)

ASTM A194 (8LN, 8LNA)

ASTM A320 (B8LN, B8LNA)

ASTM A479

ASTM A666

ASTM A688


 

ASTM A813


 

ASTM A814


 

DIN 1.4311


 


 

Applications

Grade 304LN stainless steel is widely used in the following applications:

  • Heat exchangers
  • Chemical industry
  • Food industry
  • Petroleum industry
  • Fabrication industry
  • Nuclear industry

Post time: Feb-10-2023