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T24 Ferrite Structure Alloy Steel Seamless Pipes , Vallourec Steel Boiler Tube
| Place of Origin | China/Japan |
|---|---|
| Brand Name | BEST |
| Certification | API, CE, PED, ISO |
| Model Number | 1/2''-48'' |
| Minimum Order Quantity | Negotiation |
| Price | Negotiation |
| Packaging Details | Pipes May be furnished bard or coated and with capped ends |
| Delivery Time | 5-8 working days |
| Payment Terms | L/C /TT |
| Supply Ability | 10000ton/Month |
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xProduct Details
| 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 |
| High Light | alloy steel pipe,seamless alloy steel tube |
||
Product Description
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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