描述

C&N HuiTong is specialized in manufacture A213 TP 347, SA213 TP 347H, ASTM A312 347 347H Stainless Steel Pipe, ASME SA 213 347H Stainless Steel Seamless Tubes, 347 SS Tube, 347H Tubes. 347 SMLS SS Pipes.

ASTM A213 TP 347, SA 213 TP 347H EN 10216-5 1.4550 Stainless Steel is a stabilized stainless steel which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperature in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 347 347H is austenitic chromium steel containing columbium stabilized by the addition of columbium and tantalum.

TP347H Stainless Steel Tubes Character

ASTM A213 TP347 stainless steel tubes is also advantageous for high temperature service because of its good mechanical properties. Alloy 347H stainless steel tube offers higher creep and stress rupture properties than Alloy 304 and particularly Alloy 304L, which might also be considered for exposures where sensitization and intergranular corrosion are concerned. The 347H stainless steel pipe has a high resistance to prolonged heat and corrosion making it well suited for engine, power generation, welded fabrications and other high heat applications. 347 stainless steel offers good mechanical properties with higher creep and stress rupture characteristics than other grades, such as 304. 347 stainless steel is also advantageous in applications that require omission of the annealing process after welding.

347 347H Stainless Steel Tubes are austenitic chromium steels containing columbium. 347 347H Stainless Steel are recommended for parts fabricated by welding which cannot be subsequently annealed. These types also are used for parts which are intermittently heated and cooled to temperatures between 800°F and 1600°F. The addition of columbium produces a stabilized type of stainless that eliminates carbide precipitation, and consequently, intergranular corrosion.

What does the H mean?

H-grades have 0.04 – 0.10% carbon content. H-grades are increased tensile strength and yield strength. H-grade often have slightly Higher (typically 30MPa less) minimum tensile strength and yield strength than standard stainless steel.

347/347H Stainless Steel Design Features

• Superior general corrosion resistance over Type 321 due to stabilization with columbium.
• Reduced tendencies to form continuous networks of chromium carbides at the grain boundaries.
• Better high temperature properties than 304 or 304L. Generally used for parts which are intermittently heated up to 1500 °F. For continuous service the maximum temperature is 1650°F.
• Type 347H has high carbon (0.04 – 0.10) for better high temperature creep properties.
• Improved intergranular corrosion resistance.

Benefits of 347 TP347H Stainless Steel

  • Higher creep stress and rupture properties when compared with 304
  • Ideal for high temperature service
  • Overcomes sensitization and intergranular corrosion concerns
  • Can be used in elevated temperature applications for ASME Boiler and Pressure Vessel Code applications
  • Due to stabilisation the material offers better overall corrosion resistance when compared to 304/304L
  • Excellent mechanical properties
  • A high carbon version (347H) is also available

ASTM A213 TP347 / TP347H / 347HFG Stainless Steel Tubes Chemical Composition

Grade347347H347HFG
UNS DesignationS34700S34709S34710
Carbon (C) Max.0.080.04–0.100.06–0.10
Manganese (Mn) Max.2.002.002.00
Phosphorous (P) Max.0.040.040.04
Sulphur (S) Max.0.030.030.03
Silicon (Si) Max.0.750.750.75
Chromium (Cr)17.0–20.017.0–20.017.0–20.0
Nickel (Ni)9.0–13.09.0–13.09.0–13.0
Molybdenum (Mo)
Nitrogen (N)
Iron (Fe)Bal.Bal.Bal.
Other ElementsCb+Ta=10xC-1.0Cb+Ta=8xC-1.0Nb+Ta=8xC-1.0

A213 TP347 TP347H 347HFG Stainless Steel Mechanical Properties

Tensile StrengthTensile StrengthYield StrengthYield Strength
AlloyUNSSpecMPaksiMPaksiElongation in 2 inches (min.) %Grain Size Req.Harndess
HBW
347S34700ASTM
A213
515752053035192
347HS34709ASME SA 2135157520530357 or coarser192
347HFGS347105508020530357 or coarser192

347 347H 347HFG Stainless Steel Physical Properties

AlloyUNS
Design
Density kgs/dm³Modulus of Elasticity
(x106 psi)
Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)Thermal Conductivity (BTU-in/ft2-h-°F)
347S347007.9829.09.2
347HS347097.9829.09.2
347HFGS3471029.09.2

TP347 TP347H Stainless Steel Tubes Applications

High temperature chemical process, Heat exchanger tubes
Refineries
High temperature steam service
Stainless Steel Reheater Tubes and Superheater Tubes for Boiler

Applications for 347 347H stainless steel include those for welded construction and parts subjected to heating in the carbide precipitation range, aircraft collector rings, aircraft exhaust stacks, boiler casings, cabin heaters, Stainless Steel Reheater Tubes and Superheater Tubes for Boiler, carburetor air intensifier tubes, exhaust manifolds, fasteners, fire walls, flash boilers, flexible couplings, furnace heating elements, jet engine parts, large mufflers for stationary diesel engines, pressure vessel, stack liners, all-welded tank car for carrying chemicals, annealing box inner covers, collector rings, expansion joints, heat resistors, heavy wall welded equipment, welded tanks for storing organic chemicals, wire cloth and screens (industrial).

TP347 / TP347H Stainless Steel Pipe Standard Specification

ASTM A312, A403, A182, A479, A276
ASME SA312, SA403, SA182, SA479, SA276

AMS 5646 ASTM A182 ASTM A213 ASTM A269 ASTM A276 ASTM A312 ASTM A314 ASTM A473 QQS 763 ASME SA182 EN10204 3.2

347/347H / 347HFG Stainless Steel Product Range

Standard Specification:EN 10216-5DIN 17456, DIN 17458, DIN 2462, DIN 17455
GB/T14975, T14976, T13296, GB5310
ASTM A213A269A312A511A789A790A928, A999, A1016, ASTM B161, ASTM B163, ASTM B165, ASTM B167, ASTM B338, ASTM B407, ASTM B423, ASTM B444,ASTM B619, ASTM B622, ASTM B626, ASTM B668, ASTM B677, ASTM B829
JIS G3459, JIS G3463, JIS G3446, JIS G3447, JIS G3448, JIS G3468
GOST 9940GOST 9941
AlloyUNS DesignationWerkstoff NR.Specifications*
347S347001.4550A269, A/SA249, A/SA312, A/SA213
347HS34709A/SA249, A/SA312, A/SA213, EN10216-5
347HFGS347101.4908A/SA249, A/SA312, A/SA213, EN10216-5

TP347 / TP347H Stainless Steel Heat Treatment

Annealing:Heat to 1850/2000°F (1010/1093°C) and quench in water. Brinell hardness approximately 150.

Hardening:Cannot be hardened by heat treatment, it can only be hardened through cold working.

Stabilizing:If temperature during use is expected up to 1600°C stabilizing between 1550/1650°F (843/899°C) can be used for optimum intergranular corrosion.

347/347H Stainless Steel Machinability: When machining 347 its chip is tough and stringy, use rigid tooling with heavy cuts to prevent work hardening.

TP347 / TP347H Stainless Steel Tubes Corrosion Resistance

The following table is for reference only, many factors can affect the corrosive resistance, a corrosion test for each application should be applied.

Phosphoric AcidModerateAcetic AcidModerate
Sodium HydroxideModerateSea WaterRestricted
Salt SprayGoodNitric AcidGood
Sulfuric AcidModerateHumidityExcellent
Sour Oil/GasModerate

Maximum internal pressure of TP347H Stainless Steel Tube

American standard for Process piping (ASME B31.3 : 2018)

Maximum internal pressure of ASTM A312 A376 347H Size: OD 25.4 mm WT 2.11mm Wall Thickness Tolerance: ± 10%

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347 347H219219219219219211205A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

Maximum internal pressure of ASTM A312 A376 347H Size: OD 25.4 mm WT 2.41mm Wall Thickness Tolerance: ± 10%

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347 347H252252252252252243236A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

Maximum internal pressure of ASTM A312 A376 347H Size: OD 25.4 mm WT 3.2mm Wall Thickness Tolerance: ± 10%

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347 347H343343343343343331321A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

Maximum internal pressure of ASTM A312 A376 347H Size: OD 48.26mm WT 2.77mm Wall Thickness Tolerance: ± 10%

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347 347H148148148148148143138A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

Maximum internal pressure of ASTM A312 A376 347H Size: OD 48.26mm WT 3.68mm Wall Thickness Tolerance: ± 10%

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347 347H200200200200200193187A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

Maximum internal pressure of ASTM A312 A376 347H Size: OD 48.26mm WT 5.08mm Wall Thickness Tolerance: ± 10%

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347 347H282282282282282272264A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

Maximum internal pressure of ASTM A312 A376 347H Size: OD 48.26mm WT 7.14mm Wall Thickness Tolerance: ± 10%

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347 347H411411411411411396384A312 and A376 Values according to ASME SA-240, plate, Table 1A in ASME BPVC 2004. See *1) regarding paragraph UG 15.

TP347H Stainless Steel Pipe Sizes

Size:1/4″ × 0.035″
Size:3/8″ × 0.035″
Size:1/2″ × 0.035″
Size:5/8″ × 0.035″
Size:3/4″ × 0.035″
Size:1″ × 0.035″
Size:5/16″ × 0.035″
Size:1/4″ × 0.049″
Size:3/8″ × 0.049″
Size:1/2″ × 0.049″
Size:5/8″ × 0.049″
Size:3/4″ × 0.049″
Size:1″ × 0.049″
Size:1/4″ × 0.065″
Size:3/8″ × 0.065″
Size:1/2″ × 0.065″
Size:5/8″ × 0.065″
Size:3/4″ × 0.065″
Size:1″ × 0.065″
Size:1″ × 0.120″

TP347 Stainless Steel Tubes Export Record

Export ASME SA213 TP347H Stainless Steel Seamless Tubes finished in Annealing and Pickling. Size with Outside Diameter in 63.5mm, Wall Thickness in 3.8mm Length in 6000mm. Total in 23000KGS.

347 Stainless Steel Tube TP347H Stainless Steel Export Countries

MIDDLE EAST
Saudi Arabia
Iran
Iraq
UAE
Qatar
Bahrain
Oman
Kuwait
Turkey
Yemen
Syria
Jordan
Cyprus
AFRICA
Nigeria
Algeria
Angola
South Africa
Libya
Egypt
Sudan
Equatorial Guinea
The Republic Of Congo
GabonNORTH AMERICA
USA
Canada
Mexico
Panama
Costa Rica
Puerto Rica
Trinidad And Tobago
Jamaica
Bahamas
Denmark
EUROPE
Russia
Norway
Germany
France
Italy
UK
Spain
Ukraine
Netherland
Belgium
Greece
Czech Republic
Portugal
Hungary
Albania
Austria
Switzerland
Slovakia
Finland
Ireland
Croatia
Slovenia
Malta
ASIA
India
Singapore
Malaysia
Indonesia
Thailand
Vietnam
South Korea
Japan
Sri Lanka
Maldives
Bangladesh
Mayanmar
Taiwan
Cambodia
SOUTH AMERICA
Argentina
Bolivia
Brazil
Chile
Venezuela
Colombia
Ecuador
Guyana
Paraguay
Uruguay

347 347H General Properties
347 347H Chemical Composition
347 347H Resistance to Corrosion
347 347H Physical Properties
347 347H Mechanical Properties
347 347H Elevated Temperature Oxidation Resistance
347 347H Heat Treatment
347 347H Fabrication