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Phone: +86-577-85858287 丨 Email: sales@bstpsteel.com
TP316/TP316L, UNS S31600/31603, 1.4401/1.4404, X5CrNiMo17-12-2 /X2CrNiMo17-12-2

Material No.

1.4401/1.4404
EN symbol 

X5CrNiMo17-12-2

X2CrNiMo17-12-2

AISI/SAE316/316L
UNSS31600/S31609
AFNOR

Z6CND 17-11/ Z2CND 17-12

B.S.

316 S 31/ 316 S 11

Standards----

Description

These grades belong to the family of 17%Cr12-13%Ni steels containing 2,0-3,0% Mo. This standard grade is used where specific attributes of other members of the family are not necessary - eg. no likelihood of intercrystalline corrosion caused by welding. Special for TP 316L, low carbon content, minimizes chromium carbide preciptation and improves resistance to intercrystalline corrosion. After TP 304/304L type steels, these TP 316/316L grades are the most widely used austenitics. Good high temperature oxidation resistance up to 900°C. In the damp industrial or onshore atmospheres of Europe, they perform better than TP 304/304L and ferritic grades. In low temperature seawater they offer limited resistance to pitting
but are susceptible to crevice attack. Their short- and longtime properties at elevated temperatures are also superior to those of comparable TP 304/304L grades. Main applications: Pipe and heat exchanger tubes in chemical and petrochemical plant, in boilers and food industry.

 Chemical composition (%)

 CMnPSSiNiCrMoTiNNb
316L0.035 2.000 0.045 0.030 1.00 10.0-14.016.0 -18.02.0-3.0   
1.44010.070 2.000 0.040 0.015 1.00 10.0-13.016.5-18.52.0-2.5 0.11 
1.44040.030 2.000 0.040 0.015 1.00 10.0-13.016.5-18.52.0-2.5 0.11 
3160.080 2.000 0.045 0.015 1.00 11.0-14.016.0-18.02.0-3.0 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
316    (S31600)75304021795
316L (S31603)70254021795

Convert ksi to Mpa Formula:  ksi/0.1450377

Welding filler for welded pipe & tube

AWS 5.4 AWS E316/316L-16    ASME SFA 5.4 UNS W31613

Excellent weldability by all standard fusion methods, both with and without filler metals.

 

Main fields of application (depending on the specific conditions of use)

Alloy 316/ 316L provides excellent elevated temperature tensile, creep and stress-rupture strengths, as well as outstanding formability and weldability. 316L is the lower carbon version of 316 and is immune from sensitization; therefore, it is very frequently used in heavy gauge welded components,Main application include:

Food preparation equipment, especially in chloride environments
Chemical processing, equipment
Laboratory benches and equipment
Rubber, plastics, pulp & paper machinery
Pollution control equipment
Boat fittings, value and pump trim
Heat exchangers
Pharmaceutical and textile industries
Condensers, evaporators and tanks