ASTM A788 PDF

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ASTM A Standard Specification for Steel Forgings, General Requirements. to steel forgings under any of the following specifications issued by ASTM. This standard is issued under the fixed designation A/AM; the number . 1 ASTM Standards:3 A/AM Specification for Alloy Steel Forgings for. ASTM A/AMb. Standard Specification for Steel Forgings, General Requirements. standard by ASTM International, 11/01/ View all product details.

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Required information including test temperature, conditioning, environment, and acceptance criteria shall be provided as necessary. In order for primary deoxidation to occur during vacuum treatment, deoxidizing agents such as aluminum or silicon are not to be added to the melt in any signi?

Originally approved in The listed variation value is subtracted from the minimum speci? Heat Analysis for Remelted Ingots S The results of the method used shall conform to the requirements of the product speci? We have a large inventory of Stainless Steel Forged Fittings which have high tensile strength and provide excellent resistant to corrosion.

Vacuum Carbon Deoxidation S9. These and other limitations or tests may be performed by agreement between the supplier and purchaser. The resultant chemical analysis of each zone shall conform to the requirements of the product x788 The following items shall be reported: Historical Version s – view previous versions of standard.

ASTM A – 02 Standard Specification for Steel Forgings, General Requirements NO_PDF

Forgings of large size are commonly used by industrial equipment and machinery such as steel, textile, paper, power generation and transmission, chemical and refinery industries.

The acceptance criteria for the examination shall be speci? A minimum test temperature may be set by agreement instead of establishing the lower shelf temperature. The purchaser may specify in the order a speci? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.

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An example of the determination of a weighted average analysis for an ingot made from a three-heat combination pour with varying weights and chemistry involved in each heat is shown below: The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order. Straightening of Forgings S5.

The longitudinal axis of the specimen shall be parallel to the length of the hub, as shown in Fig.

ASTM A788 Stainless Steel Forged Fittings Suppliers

Details of heat and product analyses for the evaluation of chemical composition are thoroughly discussed with the expertise. Each of the retested specimens must exhibit an energy value equal to or greater than the minimum average value required astn the product speci? Level S—Shear Wave S Intercritical Heat 7a88 S4. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.

Cooling Prior to Heat Treatment 7. In modern times, industrial forging is done either with presses or with hammers powered by compressed air, electricity, hydraulics or steam. Such requirements to be considered include, but are not restricted to, the following: Permission rights to photocopy the standard may also be secured from the ASTM website www. Fracture Toughness Test S7. These elements are considered as incidental and may be present to the following maximum amounts: The penetrant system to be used shall be agreed upon between the manufacturer and purchaser.

The plastic working may be performed by a hammer, press, forging machine, or ring rolling machine, and must deform the material to produce an essentially wrought structure. Ultrasonic Examination from Bore Surface S It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

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If the choice of test track is not made in the ordering information then the default ASTM track shall be used as noted in Test Methods A This analysis shall be made from a test sample preferably taken during the pouring of the heat and shall conform to the requirements of the product speci?

Additional terms and wording more applicable to forgings are as noted in this section. Test each specimen at a different temperature such that the percentage of shear fracture will be both above and below the value of n, but within a range of The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order. Bar coding is an acceptable supplemental identi? Charpy Impact Tests S The capacity of the system must also be sufficiently high to reduce the initial surge pressure at the start of the pour to a low level within 2 min.

The reference blocks shall be fabricated in accordance with the procedures of Practice E Such cycles shall be followed by tempering within the temperature limits required by the material speci? Level A P S Heat 0. Siddhagiri Metals and Tubes Manufacturer: The evacuation system shall be capable of reducing the pressure surges, which occur each time a new portion of steel is admitted to the vessel to increasingly lower levels, until a blank-off pressure usually less than ?