P11 P91 P22 Seamless Boiler Tubes , Alloy Steel Seamless Tube A335 Standard

Product Description

Alloy Seamless Steel Pipe Seamless Alloy Steel Pipe A335 Standard P2 P5 P9 P11 P91 P22 Boiler Tube

ASTM A335 P92 is the part of ASTM A335, The pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding. The steel material shall conform to chemical composition, tensile property, and hardness requirements.

ASTM A335 P92 high pressure semaless boiler pipe, The range of ASTM A335 P92 seamless alloy steel pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.

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 ASTM A335 P92 pipe sizes that may be examined by each method shall be subjected to the limitations in the scope of the respective practice.

The different mechanical test requirements for pipes, namely, transverse or longitudinal tension test, flattening test, and hardness or bend test are presented.Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

• Outer Dimensions: 19.05mm – 114.3mm

• Wall Thickness: 2.0mm – 14 mm

• Length: max 16000mm

Steel grade: ASTM A335 P92

Packing:

Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.

Inspection and Test:

Chemical Composition Inspection, Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test), Surface and Dimension Test,No-destructive Test, Hydrostatic Test.

Surface treatment:

Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Chemical Requirements of ASTM A335 P92

Mechanical Properties of ASTM A335 P92

Material & Manufacture

Pipe may be either hot finished or cold drawn with the finishing heat treatment noted below.

Heat Treatment

• A / N+T

• N+T / Q+T

• N+T

Mechanical Tests Specified

• Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test

• For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested.

• For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe.

Notes for Bend Test:

• For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test.

• Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser.

• The bend test specimens shall be bent at room temperature through 180 without cracking on the outside of the bent portion.

• FAQ
  
  Q1: What is your terms of payment?
  A: 30% T/T in advance, the balance 70% before delivery. We will show you the photos of products and package before you pay the balance.
  Q2: what is the terms of delivery?
  A: EXW, FOB, CIF, CFR, DDU
  Q3: What is the terms of packing?
  A: generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.
  Q4: What is your delivery time?
  A: For stocks, we could transport the goods to loading port within 7 days after we received your deposit.
  For production period, it usually takes about 15 days-30 days after receiving the deposit.
  Q5: Could you produce according to the samples?
  A : Yes, we could customer-made by your samples or technique drawings, we could build the mold and fixtures.
  Q6: Could you provide the samples?
  A: yes, we could provide the free samples on conditons it is available in stocks, however, the the transportation fee is borne by buyer.
  Q7: How could you guarantee your products?
  A: Each piece of products is manufactured by certified workshops, inspected by Lenser piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.