Orders for material under this specification should include the following, as required, to describe the desired material adequately:1 Quantity (feet, metres), or number of lengths),2 Name of material (ferritic/austenitic steel pipe),3 Process (seamless or welded),4 Grade,5 Size (NPS designator or outside diameter and schedule number of average wall thickness),6 Length (specific or random) (see Section…
ASTM A815 Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings Class WP fittings are subdivided into four subclasses: Class WP-S fittings are those manufactured form seamless product by a seamless method of manufacture;Class WP-W fittings are those which contain welds where the fitting fabrication or construction welds have been radiographed;Calss WP-WX fittings are those…
We normally use A240 S32205 or S32750 steel plates to manufacture welded pipe fittings, and the thickness of the steel plates needs to be checked when purchasing. Then what is the thickness tolerance of the above two kinds of steel plates? This tolerance is derived from ASTM A480, see figure below: Inch Size Metric Size
ASTM A480/A480M General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip Ordering InformationIt is the responsibility of the purchaser to specify all requirements that are necessary for material ordered under this specification. Such requirements may include, but are not limited to, the following:
Product Name: Welded duplex stainless steel pipeMaterial: ASTM A928M-UNS S31803Size: 24″Thickness: SCH10SEnds: BWHeat Treatment: SolutionManufacture Standard: ASME A928MRaw Material: ASTM A240 S31803Inspection: X-ray + Hydrostatic testMarking: Manufacturer’s trade mark, material, NPS, pipe sch, heat number, standardPacking: Plastic woven bag packing with plastic caps at both endsHS Code: 730531
S32205 of ASTM A276 – Stainless Steel Bars and Shapes Scope of ASTM A276This specification covers hot-finished or cold-finished bars except bars for reforging (Note 1). It includes rounds,squares, and hexagons, and hot-rolled or extruded shapes, such as angles, tees, and channels in the more commonly used types of stainless steels. The free-machining types (Note…
The customer’s drawing is a welded part, we think it is better to make an integral flange, no weld, but also save the cost of secondary heat treatment. After communication with the customer, the customer changed the drawing and changed the duplex stainless steel welding part into an integral forged long weld neck flange. Customer’s…
ASTM A182 – Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service Grade: F44 (austenitic stainless steel)UNS number： S31254 Chemical Requirements, %C: ≤0.020Mn: ≤1.00P: ≤0.030S: ≤0.010Si: ≤0.80Ni: 17.5-18.5Cr: 19.5-20.5Mo: 6.0-6.5Cu: 0.50-1.00N: 0.18-0.22 Heat treatmentSolution treat and quench, ≥1150°CCooling media, liquidQuenching cool below 260℃ Tensile RequirementsTensile…
ASTM A182 – Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service Grade: F53 (ferritic-austenitic stainless steel)UNS number: S32750 Chemical Requirements, %C: ≤0.030Mn: ≤1.20P: ≤0.035S: ≤0.020Si: ≤0.80Cr: 24.0-26.0Ni: 6.0-8.0Mo: 3.0-5.0N: 0.24-0.32Cu: ≤0.50 Heat treatmentSolution treat and quench, ≥1025 °CCooling media, liquidQuenching cool below 260℃ Tensile…
MPS = Manufacturing procedure specification ( For the following information, refer to ISO 15590-2 Petroleum and natural gas industries — Factory bends, fittings and flanges for pipeline transportation systems — Part 2: Fittings ) Fittings shall be manufactured in accordance with a documented MPS. If specified by the purchaser, manufacturing shall not proceed until the…