High-pressure alloy pipe implementation standard ASTM A210-----American Society for Testing and Materials standard ASME SA210---American Society of Mechanical Engineers standard.
High pressure alloy tubes are suitable for boiler tubes and boiler flue tubes, including safety ends, vaults and support tubes, and minimum wall thickness seamless medium carbon steel tubes for superheater tubes.
Mainly produces high-pressure alloy pipe grades: A210A1, A210C, etc.
| Alloy pipe standards |
|
Tensile strength (MPA | Yield strength (MPA) | Elongation(%) |
|
ASTMA210ASME SA210 |
A1 |
≥415 |
≥255 |
≥30 |
|
C |
≥485 |
≥275 |
≥30 |
chemical composition
| Alloy pipe standards |
|
Chemical composition of SA210 high pressure alloy pipe | |||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V |
||
|
ASTM A210ASME SA210 |
A210C |
≤0.35 |
≥0.10 |
0.29～1.06 |
≤0.035 |
≤0.035 |
/ |
/ |
/ |
/ |
/ |
|
A210A1 |
≤0.27 |
≥0.10 |
≤0.93 |
≤ 0.035 |
≤0.035 |
/ |
/ |
/ |
/ |
- |
|
Note: ① means that for every 0.01% reduction in carbon content below the specified maximum carbon content, the manganese content is allowed to increase by 0.06% from the specified maximum content until it does not exceed 1.35%
Hardness requirements: SA-210A1≤79HRB/143HB, SA-210C ≤89HRB/179HB
Dimensional tolerance
| Alloy tube types | SA210 high pressure alloy pipe outer diameter (D) | SA210 high pressure alloy pipe wall thickness (S) | ||
| Outer diameter size (mm) | Allowable deviation (mm) |
Outer diameter size (mm) |
Allowable deviation (mm) | |
| Hot rolled high pressure alloy pipe |
≤101.6 |
+0.4～-0.8 |
76～168.3 |
+28%～0 |
|
>101.6～168.3 |
+0.4～-1.2 |
|||
| Cold drawn high pressure alloy pipe |
<25.4 |
+0.10 |
≤38.1 |
+20%～0 |
|
25.4～38.1 |
+0.15 |
|||
|
>38.1～<50.8 |
+0.20 |
>38.1 |
+22%～0 |
|
|
50.8～<63.5 |
+0.25 |
|||
|
63.5～<76.2 |
+0.30 |
|||
|
76.2～101.6 |
+0.38 |
|||
|
>101.6～190.5 |
+0.38～-0.64 |
|||
|
>190.5～228.6 |
+0.38～-1.14 |
|||
