Austenitic steels

TP 316Ti • UNS S31635 • 1.4571 • TPS-INOX 4571-316Ti

Datasheet

This is one of the family of 17%Cr12-13%Ni steels containing Mo of 2,0-2,4% stabilized with Ti which minimizes chromium carbide precipitation and improves resistance to intergranular corrosion. In the damp industrial or coastal 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 long-time properties at elevated temperatures are also superior to those of comparable TP 304/304L grades.

Chemical composition • mass in %

Material grade Norm C
max.
Si
max.
Mn
max.
P
max.
S
max.
Cr Ni Mo Ti others
1.4571 EN 10216-5 0,080 1,00 2,00 0,040 0,015 16,50 - 18,50 10,50 - 13,50 2,00 - 2,50 5x% C max. 0,70
TP316Ti ASME SA / ASTM A 213 0,080 0,75 2,00 0,045 0,030 16,00 - 18,00 10,00 - 14,00 2,00 - 3,00 5x% C max. 0,70 N 0,10 max.

Mechanical properties and heat treatment

Material grade Norm Rp 0,2 MPa
min.
Rp 1,0 MPa
min.
Rm MPa
min. max.
A
min.%
Hardness
HRB max.
Heat treatment
1.4571 EN 10216-5 210 245 500 - 730 35 solution annealed
TP316Ti ASME SA / ASTM A 213 205 515 35 90 solution annealed

Rp 0,2 = Rotation

Rp 1,0 = Yield Strength

Rm = Tensile Strength

A = Elongation

Tolerances

OD - Tube OD WT special WT ID
ab Ø4,55 mm ±0,050 mm ±0,150 mm ±0,100 mm X
ab Ø9,53 mm ±0,050 mm ±0,100 mm ±0,080 mm ±0,050 mm
ab Ø30,00 mm ±0,100 mm ±0,150 mm ±0,050 mm

Scope of dimensions*

* Dimensions not shown on request

WD [mm] 0,89 1,00 1,20 1,24 1,65 1,82 2,00 2,11 2,30 2,35 2,50 2,60 2,64 2,77 2,87 3,00 3,20 3,25 3,60 3,85 3,91 4,00 4,40 5,50 6,35 7,00
AD [inch] 0,035 0,048 0,065 0,072 0,083 0,093 0,104 0,109 0,113 0,126 0,128 0,154 0,250
[mm] [inch]
6,00
6,35 0,250
7,00
7,50
8,00
9,00
9,53 0,375
10,00
11,00
12,70 0,500
13,00
15,00
15,88 0,625
16,00
16,80
17,15 0,675
18,00
19,00
19,05 0,750
20,00
21,34 0,840
22,00
22,23 0,875
23,00
25,00
25,40 1,000
26,00
26,67 1,050
28,00
30,00
31,75 1,250
32,00
33,40 1,315
36,00
38,10 1,500
42,00
44,50 1,750

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