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T24 Ferrite Structure Alloy Steel Seamless Pipes , Vallourec Steel Boiler Tube

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T24 Ferrite Structure Alloy Steel Seamless Pipes , Vallourec Steel Boiler Tube

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

Standard : NFA/BS/UNI/ISO/GOST/JIS /GB5310

Material : Alloy Steel

Specific Qualification : Specific Qualification

Grade : P91, T91 , 15CrMo

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

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

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Name : T24 (7CrMoVTiB10-10) ferritic/bainitic-martensitic steel developed by Vallourec This alloy Seamless Tubes for bolier



DEFINITION


T24 is a 2.4Cr-1Mo-1.5W ferritic/bainitic-martensitic steel developed by Vallourec. It is micro-alloyed with vanadium and titanium and has controlled boron and nitrogen contents

CHALLENGES

Grade 24 exhibits superior high-temperature strength and creep behavior compared to other low-alloy ferritic steels. The maximum permissible temperature is 575 °C according to ASME Code Case 2540 and 600 °C according to VdTÜV 533/2. Seamless tubes in T24 are manufactured at Vallourec’s European mandrel mills in the normalized and tempered condition with wall thicknesses of up to 12 mm.

W Chemical Composition - ASTM A213 T24 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 T24 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

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seamless alloy steel tube

      
Quality T24 Ferrite Structure Alloy Steel Seamless Pipes , Vallourec Steel Boiler Tube for sale

T24 Ferrite Structure Alloy Steel Seamless Pipes , Vallourec Steel Boiler Tube Images

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