What is ASTM a 249?

ASTM A249 Tube is one such grade of a tube that is a nominal wall thickness welded tube. ASTM A249 Stainless Steel Tube is usually supplied in heat treated condition in accordance with the required solution temperature.

What is SA 249 material?

stainless steel

SA 249 Tp 304l is a low carbon austenitic popular grade of stainless steel. Typically the alloy Sa-249 Tp304l is considered to be a versatile one, with many advantageous properties.

What is the difference between A249 and A269?

A249 is intended for critical environments in boilers or heat exchangers, and hence extensive mechanical testing is required. Full tensile and hardness testing is standard, as are flattening, flange and reverse bend. A269 requires no tensile testing, but does require hardness tests, plus flange, reverse flattening.

What is ASTM A554?

ASTM A554 Square Tube is part of the A554 specification. This specification covers pipes that require mechanical properties, corrosion resistance and appearance characteristics. The specification can have any material grade made tubes.

What is ASTM standard for pipes?

ASTM standards define the specific manufacturing process of the material and determine the exact chemical composition of pipes, fittings and flanges, through percentages of the permitted quantities of carbon, magnesium, nickel, etc., and are indicated by “Grade”.

What is ASME sa240?

Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications.

What is SA 240 stainless steel?

What is SA 240 type 304? It is a standard specification for chromium and chromium-nickel stainless steel plate, sheet and strip for general and pressure vessels application. It contains both chromium 18% to 20% and nickel 8% to 10.5% as the main non-iron constituents.

What is ASTM A269?

A269 specification for seamless and welded Austenitic stainless steel tubing for general service. This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service.

What is the pressure rating for stainless steel tubing?

The allowable working pressure at –20 to 100°F (–28 to 37°C) is 2600 psig (Fractional Sizes, page 3) .

What is ASTM a276?

This specification covers hot-finished or cold-finished bars except bars for reforging. 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.

What is A554 tubing?

ASTM A554 specification covers ferritic, welded austenitic and austenitic-ferritic duplex stainless steel mechanical tubing intended for use in structural, ornamental, exhaust and other applications where mechanical properties, appearance, or corrosion resistance is needed.

What is an ASTM standard for steel pipe?

ASTM A234 is Standard Specification for steel pipe fittings includes carbon and alloy steel material for moderate and high temperature services. It covers steel fittings of seamless and welded types. Steel Pipe fittings are applied in pressure pipelines and in pressure vessel fabrications.

What are ASTM codes?

ASTM is an organization that defines and publishes technical standards related to the quality of materials that can be used in the manufacturing of various products and pieces of equipment. ASTM code is made up of the standards that have been developed by committees within ASTM.

What ASTM is 316L?

Specifications of 316 and 316L Stainless Steel Plate

UNS S31600 UNS S31603
ASTM A240 ASTM 240
ASME 240 ASME 240

What is the difference between A36 and SA36 steel?

The tensile strength for A36 steel measures between 400-550 MPa (58,000-79,800 psi). SA36 steel measures a tensile strength of 400-650 MPa.

What does SA 240 mean?

SA 240 deals with the auditor’s responsibilities towards frauds in the financial statement audits. It explains how the material misstatements in the financials due to fraud can be identified, assessed and appropriate procedures to detect can be implemented.

Is 304 or 316 stainless steel stronger?

There is little difference between alloys when it comes to strength, but corrosion resistance is where the 316 truly surpasses the 304.

What is the difference between A269 and A270?

✓ A270 raw material and finished product is inspected to surface finish requirements, whereas A269 is not. A269 requires only a workmanlike finish, and minor surface imperfections are acceptable for A269 service. Often these imperfections are too deep for removal by mechanical polishing.

What is A269 stainless steel?

ASTM A269 Seamless Stainless Steel Tubing is used for low temperature and high temperature services. These pipes could be made from austenitic steel types under electric resistant weld, electric fusion weld or seamless cold drawing mechanisms. The SA269 Tubing can also have different finishes and can be heat treated.

How do you calculate tubing pressure?


  1. “t” = Wall – (Wall x 0.1)
  2. Outside Diameter (inches)*
  3. Wall Thickness (inches)*
  4. “D”/6.
  5. Y=0.4 or Y=D-(2xt)/D+(D-2xt)
  6. Max Working Pressure (psi)
  7. Max Working Pressure (MPa)

What is Schedule 40 pipe pressure rating?

This makes it ideal for industrial and chemical applications. To give you an idea of the size difference, 1” schedule 40 PVC pipe has a . 133” minimum wall and 450 PSI, while schedule 80 has a . 179” minimum wall and 630 PSI.

What is the difference between ASTM A276 and ASTM A479?

A479 specifically refers to use in boiler and pressure vessel applications. A276 specifically defers bars for reforging and free machining grades to other ASTM standards (A314 and A582/A582M) while A479 is silent on those items and they are presumed to not be covered.

What is ASTM a351 Gr CF8M?

Stainless steel SA-351 CF8M is a molybdenum bearing modification of CF8 austenitic steel alloy and is the cast equivalent of wrought AISI 316 stainless steel. The presence of molybdenum increases the general corrosion resistance and the resistance to pitting by chlorides.

What does ASTM mean on pipe?

Advertisement. Americal Society for Testing and Materials (ASTM) has researched and defined various material standards for oil and gas industry. Properties of these materials depend on chemical properties of fluids to be handled, design temperatures and pressure as well of method of manufacture of pipe fittings.

What is ASTM for stainless steel pipe?

ASTM A312 pipe is the general use stainless steel pipe applied in different industries. It covers diameters from 1/8” to 30” and thickness from SCH 10S to SCH 80S. Common use material grades are TP304/304L, TP316/316L.