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ASTM A269 Tp316L is a grade of seamless and welded austenitic steel with nominal wall thickness that is designed with 316 austenitic stainless steel. The ASTM A269 TP316L Tube is composed of an outstanding content of chromium, nickel, and molybdenum.
Characteristics
ASTM A269 tubing, made of grades TP304 and TP316 as well as their low carbon version TP304L and TP316L, exhibits good corrosion resistance in atmospheric industrial and marine environments as well as some oxidizing chemical environments. Especially, TP316 & TP316L offer enhanced resistance to pitting corrosion in chloride solution. The low carbon version TP304L or TP316L reduces sensitization significantly and provides much better welding performance. The tubing has outstanding impact toughness at low or cryogenic temperatures. It maintains long life span at elevated temperatures and under other severe conditions.
Chemical Composition
Grade
C
Mn
Si
P
S
Cr
Mo
Ni
N
316L
min.
–
–
–
–
–
16.0
2.0-3.0
10.0
–
max.
0.035
2.0
0.75
0.045
0.030
18.0
14.0
–
Mechanical Properties
Grade
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Hardness
Rockwell B (HR B) max
Brinell (HB) max
316L
485
170
40
95
217
Physical Properties
Grade
Density (kg/m3)
Elastic Modulus (GPa)
Mean Co-eff of Thermal Expansion (m/m/0C)
Thermal Conductivity (W/m.K)
Specific Heat 0-1000C (J/kg.K)
Elec Resistivity (nΩ.m)
0-1000C
0-3150C
0-5380C
At 1000C
At 5000C
316/L/H
8000
193
15.9
16.2
17.5
16.3
21.5
500
740
Grade Specification Comparison
Grade
UNS No
Old British
Euronorm
Swedish SS
Japanese JIS
BS
En
No
Name
316
S31600
316S31
58H, 58J
1.4401
X5CrNiMo17-12-2
2347
SUS 316
316L
S31603
316S11
-
1.4404
X2CrNiMo17-12-2
2348
SUS 316L
316H
S31609
316S51
-
-
-
-
-
Applications
The ASTM A269 tubing are widely used in instrumentation piping to connect various piping, valves, instruments and apparatuses, or to measuring equipment. They may be used for high purity gas piping, fine chemical engineering, sampling & analysis system, hydraulic line, chemical and petrochemical process control, coal processing, as well as automotive engineering. Especially, grades TP304, TP304L, TP316 and TP316L of ASTM A269 are listed and endorsed by ASME B31.3 – process piping.
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
