A213 T21 T22 Alloy Steel Round pipes
SA213 T22 seamless steel pipe is a special alloy steel pipe whose chemical composition contains carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, nickel and other elements. The tensile strength of A213 T22 seamless alloy steel pipe is not less than 415MPa, the yield strength is not less than 205MPa, and the elongation is not less than 30%. In addition, its hardness value should not be greater than 163HBW.
ASTM A213 T21 grade alloy steel seamless pipe has a typical chemical composition with the addition of 2.65-3.35 chromium and 0.80-1.06 molybdenum. The minimum tensile strength of the bearing is 415 Mpa. The minimum yield strength of ASTM A213 T21 grade pipe is 205 Mpa.
In GNEE's manufacturing process, steel pipes are produced by hot rolling or cold drawing, and are delivered after heat treatment. Its outer diameter ranges from 19.05mm to 762mm, and its wall thickness ranges from 2mm to 140mm. ASTM A213 Grade T21 specifications have an inside diameter of 1-8 inches [3.2 mm], an outside diameter of 5 inches [127 mm], and a minimum wall thickness of 0.015 to 0.500 inches [0.4 to 12.7 mm].
| A213 T21 T22 Seamless Alloy Tube | |
| Outside Diameter | 6-89mm |
| Wall Thickness | 0.5-9mm |
| Length | Up to 25m |
| Standard | ASTM A213, A334, A335, etc. |
| Grade | T1, T1a, T2, T5, T9, T11, T12, T17, T21, T22, T23, T24, T36, T122, P12, P5, P91, 15Mo3, 12CrMo, 15CrMoG,etc. |
| Delivery Condition | Pickled, Polished, Bright Annealed |
| Technique | Seamless |
| Application | Boiler, Pipeline Transport, Machinery Industry, Special Purpose |
| Marking | LOGO, Standard, Grade, Size, Heat Number. |
| Package | Woven bag, wooden case, or as per customer's requirement. |
| Quality Requirement | Mill Test Certificate (EN 10204/3.1); Third Part Inspection is acceptable. |
Grade and Chemical Composition(％):
|
Grade |
C |
Mn |
P≤ |
S≤ |
Si |
Cr |
Mo |
V≥ |
|
T22 |
0.05-0.15 |
0.30-0.60 |
0.025 |
0.025 |
≤0.50 |
1.90-2.60 |
0.87-1.13 |
|
|
T92 |
0.07-0.13 |
0.30-0.60 |
0.020 |
0.010 |
≤0.50 |
8-9.50 |
0.3-0.60 |
0.15-0.25 |
Mechanical Properties:
|
Standard |
Tensile(MPa) |
Yield(MPa) |
Elongate(%) |
Hardenss |
|
SA213 T22 |
≥415 |
≥205 |
≥30 |
≤163HB |
|
SA213 T21 |
≥510 |
≥400 |
≥20 |
≤220HB |
Alloy thick wall seamless pipe
GNEE company has two cold-drawn seamless pipe production lines, three hot-rolled production lines and four thermal expansion production units. It can produce seamless steel pipes with an outer diameter of 20mm-426mm and a wall thickness of 2mm-50mm. The thermal expansion diameter is 219mm-920mm according to customer requirements. Various sizes of large-diameter wall-thickness seamless steel pipes and high-pressure alloy pipes with wall thicknesses within 6mm-50mm: diameter 32mm-630mm and wall thickness 3mm-50mm.
Gnee Factory environment
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