| Place of Origin: | China |
| Brand Name: | Torich |
| Certification: | ISO9001,ISO14001,TS16949 |
| Model Number: | A333/A333M |
| Minimum Order Quantity: | 5tons |
|---|---|
| Price: | Negotiation |
| Packaging Details: | IN BUNDLES OR WOODEN BOX |
| Delivery Time: | 30-60DAYS |
| Payment Terms: | T/T L/C |
| Supply Ability: | 50000 TONS PER YEAR |
A333/A333M Seamless and Welded Steel Pipe for Low-Temperature Service
Material:
Carbon and Alloy Steel, ferritic steel
Grade 1A, Grade3, Grade 4, Grade 6A, Grade 7A
Manufacture:
The pipes are made by seamless and welding process with the addition of no filler metal in the welding operation.
Grade 4 is manufactured by seamless process
Heat treatment:
All seamless and welded pipes, other than Grades 8 and 11, are heat treated to control their microstructure in accordance with methods of:
TABLE 1 Chemical Requirements
|
Element |
Composition,% |
||||
|
Grade 1A |
Grade 3 |
Grade 4 |
Grade 6A |
Grade 7A |
|
|
Carbon, max |
0.30 |
0.19 |
0.12 |
0.30 |
0.19 |
|
Manganese |
0.40-1.06 |
0.31-0.64 |
0.50-1.05 |
0.29-1.06 |
0.90max |
|
Phosphorus,max |
0.025 |
0.025 |
0.025 |
0.025 |
0.025 |
|
Sulfur,max |
0.025 |
0.025 |
0.025 |
0.025 |
0.025 |
|
Silicon |
… |
0.18-0.37 |
0.18-0.37 |
0.10min |
0.13-0.32 |
|
Nickel |
… |
3.18-3.82 |
0.47-0.98 |
… |
2.03-2.57 |
|
Chromium |
… |
… |
0.44-1.01 |
… |
… |
|
Copper |
… |
… |
0.40-0.75 |
… |
… |
|
Aluminum |
… |
… |
0.04-0.30 |
… |
… |
|
Vanadium,max |
… |
… |
… |
… |
… |
|
Columbium,max |
… |
… |
… |
… |
… |
|
Molybdenum,max |
… |
… |
… |
… |
… |
|
Cobalt |
… |
… |
… |
… |
… |
A For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be pemitted to a maximum of 1.35% manganese.
TABLE 2 Impact Temperature
|
Grade |
Minimum Impact Test Temperature |
|
|
°F |
°C |
|
|
1 |
-50 |
-45 |
|
3 |
-150 |
-100 |
|
4 |
-150 |
-100 |
|
6 |
-50 |
-45 |
|
7 |
-100 |
-75 |
|
8 |
-320 |
-195 |
|
9 |
-100 |
-75 |
|
10 |
-75 |
-60 |
|
11 |
-320 |
-195 |
Tests and Inspection:
Tensile Requirements
Impact Requirements
Mechanical Teing
- Sampling
- Transverse or Longitudinal Tensile Test and Flattening Test
- Hydrostatic Test
- Impact Test
![]()
![]()