Yuhong Holding Group Co.,LTD
|Place of Origin:||CHINA|
|Certification:||ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015|
|Model Number:||ASTM A249 , TP304L , TP310S, TP316L , TP321, TP347H ,TP321H|
|Minimum Order Quantity:||100KGS|
|Packaging Details:||Ply-wooden Case /Iron Case/ Bundle with plastic Cap|
|Payment Terms:||L/C, T/T|
|Standard:||ASTM A249 ASME SA249 , ASTM A688, ASTM A789||OD:||25.4mm (1"), 31.75mm(1-1/4"), 38.1mm (1-1/2"), 44.45mm(1-3/4"), 50.8mm(2"), 63.5mm(2-1/2"), 76.2mm(3"), 101.6mm (4|
|Surface:||Bright Annealed (BA), Pickled And Annlealed , Polished||WT:||0.89,1,1.2,1.5,1.65,2,2.11MM...|
stainless steel welded tubing,
stainless steel coiled tubing
Bright Annealed Stainless Steel Welded Tube A249 / SA249 TP321 1.4541 TP304 TP316L BA
YUHONG GROUP deal with Stainless steel pipe and tube already more than 10 years, every year sell more than 80000 tons of stainless steel seamless pipe and tube. Our client already cover more than 45 countries.
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes oF A 249 / SA 249
1.1 This specification covers nominal-wall-thickness welded tubes made from the austenitic steels listed in Table 1, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
1.2 Grades TP304H, TP309H, TP309HCb, TP310H, TO310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended for high-temperature service such as for superheaters and reheaters.
1.3 The tubing sizes and thicknesses usually furnished to this specification are 1/8 in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1 mm], inclusive, in wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
1.4 Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.
1.5 Optional supplementary requirements are provided and, when one or more of these are desired, each shall be so stated in the order.
1.6 The values stated in either inch-pound units or SI units are to be regarded separately as standard. (A combination of values from the two systems may result in nonconformance with the specification.) The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.
APPLICATIONS FIELD :
1. Pipe and Tubes for petrochemical industry
2. Pharmaceutical industry
3. Food industry
4. Aviation and aerospace industry
5. Architectural decoration industry
Quality Control in our group :
|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|
After passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections
Contact Person: Candy