Product Name | Seamless carbon steel pipe |
Application | For High Temperature Service, High Temperature Fluids Transmission (oil, gas, water, steam etc.) |
Size |
OD: 1/8'' ~ 48'' (10.3 ~ 1219mm) WT: SCH 10 ~ 160, SCH STD, SCH XS, SCH XXS LENGTH: Fixed Length (5.8/6/11.8/12mtr), SRL, DRL |
Standard |
ASTM
A53/ASTM A106: GR A, GR B, GR CASME ASME A500: GR.A, GR.B, GR.C, GR.D |
Surface | Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating |
End | Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends |
Test Required | Chemical Analysis, Mechanical Test, Visusal Inspection , Tension Test, Dimension Check, Bend Test , Flattenting Test, Impact Test, DWT Test, NDT Test, Hydrostatic Test, Hardness Test |
Packing | Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped |
1.1 this specification covers nominal (average) wall seamless and welded carbon and alloy steel pipes used at low temperatures. Table 1 lists several grades of iron and steel. Some sizes of products may not be available under this specification because the thicker wall thickness will adversely affect the low-temperature impact performance.
1.3 values expressed in inch pound units or SI units shall be considered standard values separately. In the text, SI units are shown in parentheses. The value specified in each system is not an exact equivalent; Therefore, each system must be used independently. Merging the values of the two systems may result in non-compliance with the specifications. Inch pound units shall apply unless the "m" designation of this specification is specified in the order.
In the Plug Mill Process, a solid round (billet) is used. It is uniformly heated in the rotary hearth heating furnace and then pierced by a Mannesmann piercer. The pierced billet or hollow shell is rollreduced in outside diameter and wall thickness. The rolled tube simultaneously burnished inside and outside by a reeling machine. The reeled tube is then sized by a sizing mill to the specified dimensions. From this step the tube goes through the straightener. This process completes the hot working of the tube. The tube (referred to as a mother tube) after finishing and inspection, becomes a finished product.