Active Member
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[China]
Address: No.5, Taiwan Road, Zhangjiagang Bonded Area, Zhangjiagang City, Jiangsu Province, China
Contact name:John Chen
Zhangjiagang Bonded Area Henglong Steel Tube Co., Ltd. |
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High Temperature Alloy Steel Seamless Pipe ASTM A335
Specifications:
Surface Treatment: Oiling/Black painting/Varnish/Passivation/Phosphating/Pickling
Ends: BE/PE, ends caps
Marking: as per requirement
Delivery Condition: Annealed/Normalized/Tempered
Size:(mm)
As per standard or as per customer’s requirement
Length: ≤16m. Fixed Length (6m,9m,12m, 16m or as per requirement)
or random length
Package: Hexagonal Bundles with steel strips and plastic wrapping outside/Wooden box/Wooden crate/Steel frame/As per customer’s requirement
CHEMICAL COMPOSITION (%):
| Grade | UNS | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| 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 | 0.30~0.60 | 0.025 | 0.025 | ≤0.50 | 4.00~6.00 | 0.45~0.65 |
| P9 | S50400 | ≤0.15 | 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 | 0.80~1.25 | 0.44~0.65 |
| P22 | K21590 | 0.05~0.15 | 0.30~0.60 | 0.025 | 0.025 | ≤0.50 | 1.90~2.60 | 0.87~1.13 |
| ⋮ | ⋮ | ⋮ | ⋮ | ⋮ | ⋮ | ⋮ | ⋮ | ⋮ |
MECHNICAL PROPERTIES:
| Grade | Tensile Strength σb(Mpa) | Yield Strength σs(Mpa) | Elongation δ(%) |
| P1 | ≥380 | ≥205 | ≥20 |
| P2 | ≥380 | ≥205 | ≥20 |
| P5 | ≥415 | ≥205 | ≥20 |
| P9 | ≥415 | ≥205 | ≥20 |
| P11 | ≥415 | ≥205 | ≥20 |
| P12 | ≥415 | ≥220 | ≥20 |
| P22 | ≥415 | ≥205 | ≥20 |
| ⋮ | ⋮ | ⋮ | ⋮ |
INSPECTION AND TEST:
CHEMICAL COMPOSTION TEST. MECHANICAL PROPERTIES TEST(tensile strength, yield strength, elongation, flaring, flattening,hardness, etc). SURFACE AND DIMENSION CHECK. NON-DESTRUCTIVE TEST(eddy current test/ultrasonic test), HYDRAULIC TEST.
Description:
ASTM A335(ASME SA335/335M) SEAMLESS FERRITIC ALLOY-STEEL PIPE FOR HIGH TEMPERATURE SERVICE
This specification covers seamless ferritic alloy-steel pipe (nominal wall and minimum wall) for high-temperature service. The pipe shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding. Selection will depend upon design, service conditions, mechanical properties, and high-temperature characteristics. Grade P2 and P12 steel pipes shall be made by coarse-grain melting practice. The steel material shall conform to chemical composition, tensile property, and hardness requirements. Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices. The range of pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practices. The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.
Top quality products
Applications:
High-temperature service. Superheater. Heat-exchanger and other heat supply/heat transfer equipment, etc.
Competitive Advantage:
Advanced equipments. Serious attitude on quaity control. Sincere and truth attitude to customers. Always put customer's benefit on first consideration make us set up good long-term relationships with cusomters.
