Yuhong Group Co.,Ltd |
Verified Suppliers
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YUHONG GROUP deal with stainless steel pipe and tube already more than 10
years, every year sold more than 80000 tons of stainless steel
pipe and tube. Our client already cover more than 50 countries
so far.
Standard Specification for Welded Austenitic Steel Boiler,
Superheater, Heat-Exchanger and Condenser Tubes oF A249 / SA249
Chemical Composition
Grade | C | Si | Mn | Cr | Ni | S | P | Fe |
---|---|---|---|---|---|---|---|---|
TP304 | 0.08 | 1.0 | 2 | 18 – 20 | 8 – 11 | 0.03 | 0.045 | Bal. |
Mechanical Properties
Grade | Tensile Strength (Mpa) | Yield Point (Mpa) | Elongation (%) |
---|---|---|---|
TP304 | 515 | 205 | 35 |
APPLICATION:
Quality Control:
Corrosion Test | Conducted only when specially requested by the client |
Chemical Analysis | Test done as per required quality standards |
Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end |
Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s . |
Air Under Pressure Test | To check any evidence of air leakage |
Visual Inspection | After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |