ASTM A335M/ASME SA335M seamless steel pipe is a kind of alloy steel pipe.
Grades are mainly P1, P2, P5, P9, P11, P12, P15, P21, P22. OD is 21.3mm-508mm, 1/2’’-20’’ with its WT 2.11mm-40mm. Delivery: Within 30 Days. Payment terms: L/C, T/T. Supply ability: 500 MT/month. We can satisfy your various requirements.
A335 seamless steel pipe
Chemical Composition(%)：
Grade | UNS Designation | Composition, % |
|
| Carbon | Manganese | Phosphorus, | Sulfur | Silicon |
|
|
|
|
P1 | K11522 | 0.10–0.20 | 0.30–0.80 | 0.025 | 0.025 | 0.10–0.50 | — | 0.44–0.65 |
P2 | K11547 | 0.10–0.20 | 0.30–0.61 | 0.025 | 0.025 | 0.10–0.30 | 0.50–0.81 | 0.44–0.65 |
P5 | K41545 | 0.15 max | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 4.00–6.00 | 0.45–0.65 |
P9 | S50400 | 0.15 max | 0.30–0.60 | 0.025 | 0.025 | 0.25–1.00 | 8.00–10.00 | 0.90–1.10 |
P11 | K11597 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50–1.00 | 1.00–1.50 | 0.44–0.65 |
P12 | K11562 | 0.05–0.15 | 0.30–0.61 | 0.025 | 0.025 | 0.50 max | 0.80–1.25 | 0.44–0.65 |
P15 | K11578 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 1.15–1.65 | — | 0.44–0.65 |
P21 | K31545 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 2.65–3.35 | 0.80–1.06 |
P22 | K21590 | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50 max | 1.90–2.60 | 0.87–1.13 |
Mechanical Properties:
Standard | Grade | Tensile strength | Yield strength (MPa) | Elongation (%) | Impact (J) |
not less than | not less than | not less than |
ASTM A 335M/ ASME SA-335M | P1-P11 | ≥380 | 205 |
| – |
P12-P21 | ≥415 | 220 |
| – |
P23 | ≥515 | 100 |
| – |
Grade: P1, P2, P5, P9, P11, P12, P15, P21, P22
OD: 21.3mm-508mm, 1/2’’-20’’
WT: 2.11mm-40mm
Port Form: PE BE
Packaging
ASTM A335 Grade P22 Alloy Steel Seamless Pipes are bundled as standard, with steel straps into hexagonal bundles with one end flush.Length sorting can be carried out on request. Tubes can also be bundled in multiples. Bundle weights are adjusted as requested by the customer. Each bundle contains tubes from a single cast/heat only.
Marking
ASTM A335 Grade P22 Alloy Steel Seamless Pipes is marked with tube type, heat number, steel grade and size. Information is repeated along the whole length of the tube. Other markings, such as stamping, can be made on request. Bundles are also labeled with a tag having info both alphanumeric and by bar code.
Labelling
ASTM A335 Grade P22 Alloy Steel Seamless Pipes delivered direct from our mill is labeled in accordance with automotive standard, ie with both alphanumeric and bar code information. Customer specific data can be added on request.
Delivery Executions of ASTM A335 Grade P22 Alloy Steel Seamless Pipes
Tube Ends： All tubes are supplied with clean, square cut ends.Deburring and/or chamfering can be carried out on request.
Tube surface： Tubes are supplied normally without anti-corrosive treatment, but anti-corrosive treatment is available and is carried out on request.
Protection
Black and Bare： External Varnished with Black or Clear LAcquer
Mill test certificate： MTC is issued in accordance with EN 10204.
Quality Control
Whilst providing a quality, trusted service, we also place a high premium on quality craftsmanship. Our steel products are long-lasting, and always meet our clients exact specifications.
The purpose of this section is to display the general parameters and guidelines for the quality control of products manufactured on a day to day basis at the manufacturing facilities of Sunny Steel.
It is the intent of Sunny Steel to furnish products of the highest quality, using the best materials and workmanship available. All personnel involved in the quality control process, whether they are the location manager, or their designee, will conduct themselves in a professional manner, with the best interests of Sunny Steel Enterprise, and the customer in mind.
Testing:
The production and inspection technological process of our company is arranged according to production standards, and we also establishes professional inspection organization which takes charge of the quality inspection of all process from raw material into the company to the final product store up. Inspections including destructive testing and non-destructive testing.
Our range of steel pipe testing equipment is among the most expansive in the seamless tube manufacturing industry. This equipment is essential for testing both the chemical and physical properties of each seamless pipe and the material used to make it. It also allows us to detect hidden steel tube defects, ensuring the pipe quality. Listed below is our primary range of testing equipment currently in operation.
1. Eddy current flaw detector
2. Ultrasonic flaw detector
3. Optical spectrum analyzer
4. Universal testing machine
5. Tensile strength tester, impact tester, hydrostatic test equipment, length measuring and weighing instruments.