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Grade T23 P23 Alloy Steel Seamless Pipes , High-temperature Strength Steam Boiler Tubes

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Grade T23 P23 Alloy Steel Seamless Pipes , High-temperature Strength Steam Boiler Tubes

Brand Name : BEST

Model Number : 1/2''-48''

Certification : API, CE, PED, ISO

Place of Origin : China/Japan

MOQ : Negotiation

Price : Negotiation

Payment Terms : L/C /TT

Supply Ability : 10000ton/Month

Delivery Time : 5-8 working days

Packaging Details : Pipes May be furnished bard or coated and with capped ends

OD Tolerance : ±1% or ±0.5mm , Whichever is the greater

Standard : API / GB / DIN/ ASTM /EN

Certificate : EN10204 -3.1 /3.2

Packing : Pipes May be furnished bard or coated and with capped ends

Specific Qualification : TUV:AD WO-TRD100 / PED97/23/EC /IBR

Test : Heat Analysis/Tensile Test/Impact Test /NDE/PMI

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Name : T23/P23 (7CrWVMoNb9-6) ferritic/bainitic-martensitic Seamless hot finished tubes and pipes

These Pipes Can be used for: Boiler superheater and reheater tubes and water wall panels in complex fossil-fuelled power plants and HRSG (Heat Recovery Steam Generators)

DEFINITION

Grade T/P23 is a ferritic/bainitic-martensitic (2.25 % chromium, 1.6 % tungsten, 0.2 % molybdenum) steel, micro-alloyed with vanadium and niobium and having controlled boron and nitrogen contents according to ASTM A 335, A 213 or to EN 10216-2 standard under the designation 7CrWVMoNb9-6. It was introduced into the ASME Code with Code Case 2199 in 1995.

APPLICATION

This grade can be used for:

  • Boiler superheater and reheater tubes and water wall panels in complex fossil-fuelled power plants and HRSG (Heat Recovery Steam Generators)
  • Headers and steam piping in fossil-fuelled power plants
  • Repair and revamping projects involving the replacement of steels such as ASTM T/P22 (EN10216-2 10CrMo9-10), T/P12 (13CrMo4-5) or 14MoV6-3.

CHALLENGES

Grade T/P23 exhibits superior high-temperature strength and creep behavior compared to other low-alloy ferritic steels.

Accordingly, the weight of boiler and piping components in this steel can be reduced and they possess increased resistance to thermal fatigue. Compared with austenitic steels, grade T/P23 has higher heat transfer and lower thermal expansion coefficients. Low tube hardness in the as-welded condition cuts out the need for preheating and post-weld heat treatment.

Chemical Composition - ASTM A213 T23 Tubes

  • UNS
    K40712
  • C
  • Mn
  • P
  • S
  • Si
  • Ni
  • Cr
  • Mo
  • V
  • B
  • Nb
  • N
  • Al
  • Tu
  • Ti
  • Ti/N
  • 0.04 - 0.10
  • 0.10 - 0.60
  • 0.030
  • 0.010
  • 0.50
  • 0.40
  • 1.90 - 2.60
  • 0.05 - 0.30
  • 0.20 - 0.30
  • 0.0010 - 0.006
  • 0.02-0.08
  • 0.015
  • 0.030
  • 1.45-1.75
  • 0.005-0.060
  • 3.5
  • Physical Properties - ASTM A213 T23 Tubes
  • UNS K40712
  • Tensile Strength,
    min, ksi(MPa)
  • Yield Strength,
    min, ksi(MPa)
  • Elongation in 2 in.
    or 50 mm, min %
  • Hardness
  • Brinell
  • Rockwell
  • 74 (510)
  • 58 (400)
  • 20
  • 220 HBW / 230 HV
  • 97 HRB
  • ASTM A213/ASME SA213 T23 Tubes Specification
  • Port: Tianjin, Qingdao , Shanghai
    Payment Terms: L/C, T/T, Western Union
    Standard: ASTM A213, ASME SA213
    Equivalent Standards: EN 10216-2, ASTM A213, GOST 550-75
    Material: T23, K41650
    Equivalent Material: P23,K41650
  • SPECIAL NOTICE
  • To the Users of ASME Boiler and Pressure Vessel Code
  • Code Case 2199, 2199-1, 2199-2, and 2199-3
    2.25Cr-1.6W-V-Cb Material (Section I)
  • Other Available Products of Alloy Steel ASTM A213 T23 Tube

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Product Tags:

alloy steel seamless tubes

      

seamless alloy steel tube

      
Grade T23 P23 Alloy Steel Seamless Pipes , High-temperature Strength Steam Boiler Tubes Manufactures

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