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Phone: +86-577-85858287 丨 Email: sales@bstpsteel.com
1.4301,TP304L,UNS S30403
Material No.1.4306
EN symbol X2CrNi19-11
UNSS 30403
B.S.304 S11
StandardsEN 10088-3


Type 304L is an extra low-carbon variation of Type 304 with a 0.03% maximum carbon content that eliminates carbide precipitation due to welding. As a result, this alloy can be used in the ”as-welded“ condition, even in severe corrosive conditions. It often eliminates the necessity of annealing weldments except for applications specifying stress relief. It has slightly lower mechanical properties than Type 304.In addition ,low carbon version of TP 304 guaranteed no creep  resistance above 500°C. Good high temperatureoxidation resistance up to 900°C. General corrosion characteristics are similar to TP 304. Stability and toughness at cryogenic temperatures is high. 

Chemical composition (%)

TP304L0.035 2.000 0.045 0.030 1.00 8.0-11.018.0-20.0   
1.43060.030 2.000 0.045 0.030 1.00 8.0-11.018.0-19.0  0.11

Mechanical Properties:(%)

GradeTensile StrengthYield Strength 0.2%Elongation -% in  50 mm (min.)HardnessHardness
ksi (min.)Offset ksi (min.)(Brinell) MAX(Rockwell B) MAX

Convert ksi to Mpa Formula:  ksi/0.1450377


Welding filler for welded pipe & tube

AWS 5.4 AWS E308/308L-16   ASME SFA 5.4 UNSW30813
Excellent welding properties;Two important considerations in producing weld joints in the austenitic stainless steels are:preservation of corrosion resistance,avoidance of cracking

Main fields of application (depending on the specific conditions of use)
Alloy 304L Stainless Steel is used in a wide variety of home and commercial applications, including:
Food processing equipment, particularly in beer brewing, milk processing, and wine making
Kitchen benches, sinks, troughs, equipment, and appliances
Architectural trim and molding
Automotive and aerospace structural use
Construction material in large buildings
Chemical containers, including for transport
Heat exchangers