ASME SA266 GR 2 Carbon Steel Disk And Ring For Heat Exchanger
Brand Name:YUHONG
Certification:ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015
Model Number:ASME SA266
Minimum Order Quantity:500KGS
Delivery Time:10-90 Days
Payment Terms:L/C, T/T
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ASME SA266 GR.2 Disk And Ring
ASME SA266 is a specification that defines the requirements for carbon steel magnetic particle inspected forged steel disks and rings. This specification is often used in industrial applications where high-quality, durable components are required.
The material covered by this specification is carbon steel. It is designed to be suitable for use in environments where magnetic particle inspection (MPI) is necessary to ensure there are no surface or near-surface defects.
The parts must be forged and then machined to achieve the final dimensions and shape. The forging process helps to develop the grain structure and mechanical properties of the steel.
ASTM A266 Grade 2 Chemical Composition Requirements
| Item | Chemical Requirements for ASTM A266 Flanges, % | ||
| Gr. 1 & 2 | Gr. 3 | Gr. 4 | |
| P | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| S | ≤ 0.025 | ≤ 0.025 | ≤ 0.025 |
| C | ≤ 0.30 | ≤ 0.35 | ≤ 0.30 |
| Mn | 0.40~1.05 | 0.80~1.35 | 0.80~1.35 |
| Si | 0.15~0.35 | 0.15~0.35 | 0.15~0.35 |
ASTM A266 Grade 4 Flanges Mechanical Properties
| Tensile Requirements | Gr. 1 | Gr. 2 & 4 | Gr. 3 |
|---|---|---|---|
| EL. in 2" or [62.5 mm] minimum % | 23 [21] | 20 [18] | 19 [17] |
| R.o.A minimum % | 38 | 33 | 30 |
| T.S minimum ksi [Mpa] | 60~85 [415~585] | 70~95 [485~655] | 75~100 [515~690] |
| Y.S minimum ksi [Mpa] | 30 [205] | 36 [250] | 37.5 [260] |
ASTM A266 Flanges Material Standard
| ASTM A266/ASME SA266 | Specification for Carbon Steel Forgings for Pressure Vessel Components | |||
|---|---|---|---|---|
| Material Grade | Grade 1 | Grade 2 | Grade 3 | Grade 4 |
ASME SA266 Flanges Hardness
| ASTM A266 | Brinell Hardness HBW |
|---|---|
| Grade 1 | 121~170 |
| Grade 2 | 137~197 |
| Grade 3 | 156~207 |
| Grade 4 | 137~197 |
These disks and rings are commonly used in applications such as:
- Industrial machinery
- Power generation equipment
- Pumps and compressors
- Anywhere where high-strength, reliable components are needed
ASME SA266 GR 2 Carbon Steel Disk And Ring For Heat Exchanger
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