Specifications
Brand Name :
YUHONG
Model Number :
ASTM A268 TP405 Stainless Steel Seamless Tube
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1000kgs
Payment Terms :
L/C,T/T
Delivery Time :
7 DAYS
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name :
Stainless Steel Tube
Standard :
ASTM A268, ASME SA268
Material :
TP405, UNS S40500
OD :
1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc.
Thickness :
BWG10-25
Length :
Single Random, Double Random & Cut Length
End :
Plain End, Beveled End
High Light :
ASTM A268 TP405 Stainless Steel Seamless Tube, Bright Annealed Heat Exchanger Tube
Description

ASTM A268 TP405 / UNS S40500 Stainless Steel Seamless Tube Heat Exchanger Tube

ASTM A268 TP405 is a low‑cost, SCC‑resistant ferritic tube ideal for moderate‑temperature heat exchangers and boilers where austenitic grades fail due to chloride cracking. Its key limitation is embrittlement at 475°C and poor low‑temperature toughness. For welded tube, post‑weld annealing is mandatory to achieve acceptable ductility.

Advantages of Grade 405 ferritic stainless steel

  1. Excellent chloride stress corrosion cracking (SCC) resistance

  2. Lower cost

  3. Lower thermal expansion

  4. Higher thermal conductivity

  5. Magnetic

  6. Good oxidation resistance

  7. Resists polythionic acid SCC

  8. No sensitization

  9. Good weldability (with PWHT)

  10. Good resistance to hydrogen attack

  11. Lower allowable stress at moderate temperatures

Chemical Composition % of STM A268 TP405 Ferritic Stainless Steel Seamless Tube

Grade C Mn Si P S Cr Ni Mo Cu N

TP405

0.08 max 1.00 max 1.00 max 0.045 max 0.030 max 11.0-13.0 0.50 max 0.60 max 0.25 max 0.10 max

Mechanical Properties of ASTM A268 TP405 Ferritic Stainless Steel Seamless Tube

Grade Tensile Strength Yield Strength Elongation Hardness
TP405

480 - 620 MPa (70 - 90 ksi)

205 MPa (30 ksi)

20-25%(acc. thickness)

160-190 HB

When to Specify TP405 vs. Austenitic (TP304/316)

Condition Recommendation
Chloride SCC risk (e.g., seawater, brine, caustic) TP405 (or other ferritic)
High temperature > 600°C (1112°F) Austenitic (e.g., TP304H)
Cryogenic or sub‑zero service Austenitic (TP304) – ferritic becomes brittle
High pressure steam (> 500 psi, > 400°C) Austenitic (creep strength)
Cost‑sensitive, moderate corrosion, no SCC risk TP405
Welding without PWHT possible Austenitic (ferritic requires PWHT)

Application

  • Heat exchanger bundles in hydrotreaters, catalytic reformers, and amine service (where chloride SCC is a concern).

  • Boiler feedwater heaters (low temperature end).

  • Condensers using brackish or chlorinated cooling water.

  • Refinery overhead condensers (wet H₂S / chloride environment).

  • Automotive exhaust heat exchangers (EGR coolers).

ASTM A268 TP405 / UNS S40500 Ferritic Stainless Steel Tube Boiler and Heat Exchanger Tube
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ASTM A268 TP405 / UNS S40500 Ferritic Stainless Steel Tube Boiler and Heat Exchanger Tube

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Brand Name :
YUHONG
Model Number :
ASTM A268 TP405 Stainless Steel Seamless Tube
Certification :
ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin :
CHINA
MOQ :
1000kgs
Payment Terms :
L/C,T/T
Contact Supplier
ASTM A268 TP405 / UNS S40500 Ferritic Stainless Steel Tube Boiler and Heat Exchanger Tube
ASTM A268 TP405 / UNS S40500 Ferritic Stainless Steel Tube Boiler and Heat Exchanger Tube
ASTM A268 TP405 / UNS S40500 Ferritic Stainless Steel Tube Boiler and Heat Exchanger Tube
ASTM A268 TP405 / UNS S40500 Ferritic Stainless Steel Tube Boiler and Heat Exchanger Tube

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
3 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
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