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ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers

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ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers

Brand Name : Torich

Model Number : ASTM A213

Certification : ISO9001

Place of Origin : China

MOQ : 1ton

Price : $1200-$1500

Payment Terms : L/C, D/A, D/P, T/T, Western Union

Supply Ability : 5000tons per year

Delivery Time : 30-40 days

Packaging Details : In seaworthy package or wooden cases or customer requirement

Standard : ASTM A213

Grade : T11, T22

Type : Seamless

Delivery Condition : Pickled and Annealed

Application : Boiler and Heat Exchanger

Length : 5.8m or 6m or 11.8 or customer's requirement

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ASTM A213 Boiler / Heat Exchangers Annealed Pickled Stainless Seamless Steel Tube

Product Name
 Boiler steel tube
Material
 304 316 T11 T22
Type

 Seamelss
Standard
 ASTM A213
Grade
304, 304L, 316L, 321, 347, 904L
Size
5-420 mm
Length
800mm - 11800 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

316 stainless steel.Composition

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

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

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

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

ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat ExchangersASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers

ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers ASTM A213 Pickled Cold Rolled Annealed Tube Boiler / Heat Exchangers


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