Categories | Alloy Steel Seamless Pipes |
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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 |
Company Info. |
BEST PIPELINE EQUIPMENT CO.,LTD |
Verified Supplier |
View Contact Details |
Product List |
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:
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
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