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Stainless Seamless Steel Boiler Tube

Payment Type:
L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm:
FOB,CFR,FCA,CPT
Min. Order:
1 Ton
Transportation:
Ocean,Land,Air
Port:
Ningbo,Shanghai
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  • Product Description
Overview
Product Attributes

Model No.ASTM A213

BrandTORICH

TypeStraight And U Bend

CertificationUL

ApplicationBoiler And Heat Exchanger

Section ShapeRound

Surface TreatmentPolished

UsageThermal Equipment

TechniqueCold Drawn

MaterialStainless Steel

StandardASTM A213

ProductionCold Drawn

Grade316L 314L

Delivery ConditionPickled And Annealed

Supply Ability & Additional Information

PackagingIn bundles In wooden boxes

Productivity60000 Tons per Year

TransportationOcean,Land,Air

Place of OriginChina

Supply Ability60000 Tons per Year

CertificateISO 9001 ISO 14001 TS 16949 EN 10204.3.1 LR KR

HS Code7304419000

PortNingbo,Shanghai

Payment TypeL/C,T/T,D/P,Paypal,Money Gram,Western Union

IncotermFOB,CFR,FCA,CPT

Packaging & Delivery
Selling Units:
Ton
Package Type:
In bundles In wooden boxes

Stainless Seamless Steel Boiler Tube


Product Name ASTM A213 316Ti stainless steel seamless tube
Material stainless steel 316Ti
Process cold drawn, cold rolling
Standard A213, A312, A269, A511
Grade 304, 304L, 316L, 321, 347H, S31803, 904L
Size 6 - 610 mm
Length 800mm - 20000 mm
Used bolier, heat exchanger


Tolerance for seamless stainless boiler tube:

Production Method Size(mm) Tolerance
Hot Rolling(Extrusion) OD ≤140 ±1.25%
>140 ±1.0%
WT ≤10 ±12.5%
>10 ±15%
Cold Drawn(Cold Rolled) OD 8~30 ±0.20mm
>30~50 ±0.30mm
>50 ±0.8%
WT 1.0~3

+12%

-10%

>3.0

±10%


Standard ASME SA213/ASTM A213, ASTM A269/ASME SA269, ASME SA312/ASTM A312, ASME249/ASTM A249, ASME SA511/ASTM A511, ASTM A270/ASME SA270, EN10216-5,EN10305-1, EN10217-5, DIN 17175, DIN 2448, DIN 6258, GOST 8731, JIS G3463, JIS G3462, JIS G3455, JIS G3459 etc.
Material TP304, TP304L, TP304H, TP304LN, TP314, TP316, TP316L, TP316LN, TP321, TP321H, TP310, TP310S, TP317, TP317L, TP347, TP347H, N08904, 904l, 253MA(S30815), 254SMO(S31254).
Type Seamless / SML
O.D 6-530mm
W.T 0.7-50mm
Length 0-38000mm
Technique Cold Finished (Cold Drawing and Cold Rolling), Hot Finished (Hot Extrusion)
Ends PE/Plain Ends, BE/Beveled Ends

Composition

Composition ranges for grade 316 stainless steel.

Grade
C Mn Si P S Cr Mo Ni N
316 Min - - - 0 - 16.0 2.00 10.0 -
Max 0.08 2.0 0.75 0.045 0.03 18.0 3.00 14.0 0.10
316L Min - - - - - 16.0 2.00 10.0 -
Max 0.03 2.0 0.75 0.045 0.03 18.0 3.00 14.0 0.10
316H Min 0.04 0.04 0 - - 16.0 2.00 10.0 -
max 0.10 0.10 0.75 0.045 0.03 18.0 3.00 14.0 -


Mechanical Properties

Mechanical properties of grade 316 stainless steel.

Grade Tensile Str (MPa) min Yield Str 0.2% Proof (MPa) min Elong (% in 50 mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
316 515 205 40 95 217
316L 485 170 40 95 217
316H 515 205 40 95 217


Physical Properties

Typical physical properties for grade 316 stainless steel.

Grade Density(kg/m3) Elastic Modulus (GPa) Mean Co-eff of Thermal Expansion (µm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100 °C (J/kg.K) Elec Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C At 100 °C At 500 °C
316/L/H 8000 193 15.9 16.2 17.5 16.3 21.5 500 740


Grade Specification Comparison

Grade specifications for grade 316 stainless steel.

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 - - -


Mechanical property

Heat treatment of longitudinal mechanical properties of steel pipe shall according to the standard.

Material

Tensile strength MPa

Yield Strength MPa

Elongation

%

0Cr18Ni9 520 205 35
1Cr19Ni9 520 205 35
0Cr19Ni10 480 175 35
1Cr18Ni9Ti 550 205 40
0Cr18Ni12Mo2Ti 530 205 35
0Cr26Ni5Mo2 590 390 18
1Cr17 410 245 20
00Cr27Mo 410 245 20
1Cr25Ti 440 245 17


Hardness:

For the tubes which W.T. ≥2 mm, Rockwell hardness tests should be taken.


Tests of the seamless boiler tubes:

1.Bending Test:

The tubes should take the bending test when OD ≤22mm. The bending angle is 90 degrees, and the bending radius is 6 times the outer diameter of the steel tube.


2. Hydraulic test;

Eddy current testing, ultrasonic testing can be used instead of hydraulic tests. When eddy current testing, GB/T 7735-1995 Gr. A should be followed; when ultrasonic testing, GB/T 5777-1996 Gr. C8 should be followed.

3. Flattening test

4. Flanging test

5. Expand test



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Product Categories : Seamless Steel Tubes

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