TP 316TI

TP316Ti stainless steel seamless pipe, also known as 1.4571 stainless steel seamless pipe, is a austenitic chromium-nickel stainless tube, stabilized with titanium.

With good corrosion resistance to low content of hydrochloric and organic acids, 316Ti stainless steel seamless pipes are widely used in chemical industry, textile industry, cellulose industry, etc.

All TP316Ti stainless steel seamless pipe we manufacture are free from external and internal surface defects that can be detected by visual examination.

All 1.4571 stainless seamless pipes can be cut to size according to client’s requirement. TP316Ti pipes shall be delivered with square cut ends, and the ends shall be free from excessive burrs.

When the wall thickness of these tubes is over 3.2mm, it shall be delivered with beveled ends.

We can supply 316Ti pipes with polished finish, which are inventoried in diameter from 21.3mm to 323.9mm.

We have rich experiences in manufacturing TP316Ti stainless steel seamless pipe in strict accordance with EN10216-5 or ASTM A312/A213, DIN 17456, 17458 and JIS G3459/3463.

Specification

Size OD: 21.3 ~ 323.9mm; WT: 2 ~ 30mm;OD:1/2”-12” ;WT:SCH 10(S)-XXS

Length: 5.8m, 6m, 11.8m, Max.11.8m

Process Seamless, Cold Drawn, Cold Rolled
Different Name 1.4571 Seamless Stainless Steel Pipe
X6CrNiMoTi17-12-2 Seamless Stainless Steel Pipe
UNS S31635 Seamless Stainless Steel Pipe
End PE(Plain End), BE(Beveled End),
Surface Aid Pickling, Polishing
Standard ASTM A312, ASTM A213, EN10216-5, DIN 17456, DIN 17458, JIS G3459, JIS G3463
Theoretical Weight(kg/m) Weight/meter = (OD-WT)*WT*0.02507 Both OD and WT in mm.

 

Note:
OD is the specified outside diameter.
WT is the specified wall thickness
Stainless steel pipes shall be pickled free of scale. When bright annealing is used, pickling is not necessary.
Plain ends cut and deburred will be furnished. If threaded ends or ends beveled for welding are desired, give details.

Chemical Composition

Element

UNS S31635(316Ti)
%

Tolerances, %

C, max

0.08

±0.01

Mn, max

2.00

±0.04

P, max

0.040

±0.005

S, max

0.015

±0.003

Si, max

1.00

±0.05

Ni

10.50 to 13.50

±0.15

Cr

16.5 to 18.5

±0.20

Mo

2.00 to 2.50

±0.10

Ti

5Xc to 0.70

±0.05

Mechanical Properties

Alloy

Temper

Tensile Strength
Min, MPa

Yield Strength, 0.2%
Offset, min, MPa

Elongation in2 in. or
50mm (or 4D), min, %

UNS S31635

Solution Annealed

515

205

35

Tolerances for Outside Diameter (D) and Wall Thickness (T)

Tolerances on D≤219.1mm

Tolerances on T

Tolerance Class

Permissible Deviation

Tolerance Class

Permissible Deviation

D 3

±0.75% or ±0.3mm whichever is the greater

T 3

±10% or ±0.2mm whichever is the greater

D 4 a

±0.5% or ±0.1mm whichever is the greater

T 4 a

±7.5 % or ±0.15mm whichever is the greater

Note a : Tolerance class D 4 and T 4 is specified for tubes ordered cold finished

Tolerances for Outside Diameter (D) and Wall Thickness (T)

Outside Diameter D

Tolerances on D

Tolerances on T

mm

Tolerance Class

Permissible Deviation

Tolerance Class

Permissible Deviation

30 ≤ D ≤ 219.1

D 2

±1.0% or ±0.5mm whichever is the greater

T 1

±15% or ±0.6mm whichever is the greater b

T 2

±12.5% or ±0.4mm whichever is the greater

219.1 ≤ D ≤ 610

D 1

±1.5% or ±0.75mm whichever is the greater a

22.5% -15% C

T 1

±15% or ±0.6mm whichever is the greater d

T 2

±12.5% or ±0.4mm whichever is the greater e

Note a : The tubes shall be ordered with size ends. In the case a permissible deviation of the outside diameter of ±0.6% applied to the tube ends over a length of approx. 100mm.
Note b : Applies to tubes with wall thickness T≤0.01 D and T≤4mm.
Note c : Applies to tubes with wall thickness T≤0.05D
Note d : Applies to tubes with wall thickness T:0.05D T≤0.09D
Note e : Applies to tubes with wall thickness T0.09D

Tolerance on Exact Lengths

Length L

Tolerance on exact length

L ≤ 6000

+ 5
0

6000 L ≤ 12000

+ 10
0

Tests of 316Ti Stainless Steel Seamless Pipe
1.Chemical Analysis (ASTM E345)
2.Mechanical Properties (Tension: ASTM E8)
3.Nondestructive Test
3.1: 100% Hydrostatic Test
3.2: According to ASTM A450/A450M

 


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