This standard has been approved for use by agencies of the Department of Defense. 2. Referenced Documents ASTM Standards: 2. A Specification for. ASTM A – Download as PDF File .pdf), Text File .txt) or read online. ASTM A Standard Practice for Steel Bars, Selection Guide, Composition, and Mechanical Properties.

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The criteria for placing a steel composition in one of the three general class designations, Classes P, Q, and R described in Section 4 are as follows: Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here Join Us! Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. If the desired mechanical properties are as set forth in 4. Note 3—An H-steel with the same grade designation as a standard SAE-AISI steel astk capable of meeting the same section and strength requirements as the standard steel see Specification Aand is the preferred method of specification.

Per the stated strength levels, I see that HT per A could work, but I can’t be sure without more info.

ASTM A Class Q2 – Metal and Metallurgy engineering – Eng-Tips

Test specimens immersed in solution in storage tank. Alloy can be welded to itself or dissimilar metals by utilizing conventional welding processes. However, under stagnant conditions, the alloy can encounter crevice and pitting corrosion.

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The criteria for placing a steel composition in one of the three general class designations, Classes P, Q, and R described in Section 4 are as follows:. Heavier than normal drafts may be required. The locations for obtaining tension tests are described in 6. Hot-rolled series steels with a maximum carbon content of 0.

This is not a specification for the procurement of steel. Alloy is readily cold worked by virtually all cold fabrication methods. Are you an Engineering professional?

Alloy 400/400AR

Physical Properties Density 0. Thickness of Flat Sections, in. The choice of welding product adtm dependent upon the materials being welded and the environment in which it occurs. Note 1—Steels listed as approved for heavier section or higher strengths may be used in the same conditions for lighter sections and lower strengths.

Only cold-drawn series steels used in the strength level and q400 thickness for which hot-rolled steels of the same composition are approved may be welded, and in this case caution should be exercised to see that excessive grain growth does not occur in the heat-affected zone.

The alloy has been found to offer exceptional resistance to hydrofluoric acid in all concentrations up to the boiling point.

Close this window and log in. This is not a specification for the procurement of steel. Aatm plus Cobalt Equivalent Tensile Strength, psi A. Fabrication Data Alloy is readily fabricated by conventional processing operations. Steels with lower alloy contents are often satisfactory through the use of special processing techniques.

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Alloy Technical Information

The applicable section sizes, identified as Classes Q-1 through Q-7, are shown in Table 7. Hot Working Alloy is a relatively soft material that is receptive to hot forming into almost any shape. A hardness indicated by tests made at a location shown in Fig.

Alloy is a very versatile corrosion resistant material. Red Flag This Post Please let us know here why this post is inappropriate. It has outstanding resistance to neutral and alkaline salts and has been utilized for many years as a material of construction for salt plants.

Welding Alloy can be welded to itself or dissimilar metals by utilizing conventional welding processes. The locations for obtaining tension tests are described in 6. Alloy is a relatively soft material that is receptive to hot forming into almost any shape.

It is resistant to chloride stress corrosion cracking and has high strength and toughness over a wide range of temperatures. The alloy is most frequently specified in environments ranging from mildly oxidizing through neutral and in moderately reducing conditions.

The alloy has a somewhat higher work hardening rate than carbon steel, but not as high as stainless steel. Join your peers on the Internet’s largest technical engineering professional community. I would not have asked the question if I had the spec.