ASTM A608/A608M-06(2012)

Standard Specification for Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures

STANDARD published on 1.3.2012

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The information about the standard:

Designation standards: ASTM A608/A608M-06(2012)
Note: WITHDRAWN
Publication date standards: 1.3.2012
SKU: NS-3343
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM A608/A608M-06(2012) :

Keywords:

alloy, centrifugal casting, high temperatures, pressure containing parts, steel tube, temperature service applications, Centrifugal castings--specifications, Class codes (for metals/alloys), High-temperature service applications--steel tube, Iron-chromium castings--specifications, Pressure vessel steel tube--specifications, Steel tube--specifications, ICS Number Code 23.040.10 (Iron and steel pipes), 23.040.40 (Metal fittings)

Additional information

1. Scope

1.1 This specification covers iron-chromium-nickel, high-alloy tubes made by the centrifugal casting process intended for use under pressure at high temperatures.

1.2 The grades of high alloys detailed in Table 1 are intended for applications requiring strength and resistance to corrosion and scaling at high temperatures.

1.3 Optional Supplementary Requirements S1 to S11 are provided; these call for additional tests to be made if desired.

1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of each other. Combining values from the two systems may result in nonconformance with the specification.

TABLE 1 Chemical Requirements

Grade	Composition, %
Grade	Carbon	Manganese	Silicon	Chromium	Nickel	Phosphorus	Sulfur	Molybdenum
HC30	0.25–0.35	0.5–1.0	0.50–2.00	26–30	4.0 max	0.04 max	0.04 max	0.50 max
HD50	0.45–0.55	1.50 max	0.50–2.00	26–30	4–7	0.04 max	0.04 max	0.50 max
HE35	0.30–0.40	1.50 max	0.50–2.00	26–30	8–11	0.04 max	0.04 max	0.50 max
HF30	0.25–0.35	1.50 max	0.50–2.00	19–23	9–12	0.04 max	0.04 max	0.50 max
HH30	0.25–0.35	1.50 max	0.50–2.00	24–28	11–14	0.04 max	0.04 max	0.50 max
HH33^A	0.28–0.38	1.50 max	0.50–2.00	24–26	12–14	0.04 max	0.04 max	0.50 max
HI35	0.30–0.40	1.50 max	0.50–2.00	26–30	14–18	0.04 max	0.04 max	0.50 max
HK30	0.25–0.35	1.50 max	0.50–2.00	23–27	19–22	0.04 max	0.04 max	0.50 max
HK40	0.35–0.45	1.50 max	0.50–2.00	23–27	19–22	0.04 max	0.04 max	0.50 max
HL30	0.25–0.35	1.50 max	0.50–2.00	28–32	18–22	0.04 max	0.04 max	0.50 max
HL40	0.35–0.45	1.50 max	0.50–2.00	28–32	18–22	0.04 max	0.04 max	0.50 max
HN40	0.35–0.45	1.50 max	0.50–2.00	19–23	23–27	0.04 max	0.04 max	0.50 max
HT50	0.40–0.60	1.50 max	0.50–2.00	15–19	33–37	0.04 max	0.04 max	0.50 max
HU50	0.40–0.60	1.50 max	0.50–2.00	17–21	37–41	0.04 max	0.04 max	0.50 max
HW50	0.40–0.60	1.50 max	0.50–2.00	10–14	58–62	0.04 max	0.04 max	0.50 max
HX50	0.40–0.60	1.50 max	0.50–2.00	15–19	64–68	0.04 max	0.04 max	0.50 max

^A Manufacturing control should ensure that this composition contain a minimal amount of ferrite. See Supplementary Requirement S5.

2. Referenced Documents

E151-64 (1981)	Recommended Practice for Tension Tests of Metallic Materials at Elevated Temperatures With Rapid Heating and Conventional or Rapid Strain Rates (Withdrawn 1984)
E165-09	Standard Practice for Liquid Penetrant Examination for General Industry
E340-23	Standard Practice for Macroetching Metals and Alloys
A342/A342M-21	Standard Test Methods for Permeability of Weakly Magnetic Materials
A999/A999M-23	Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
A488/A488M-18e2	Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel (Includes all amendments and changes 2/12/2020).
E142-92	Method for Controlling Quality of Radiographic Testing (Withdrawn 2000)
E139-11(2018)	Standard Test Methods for Conducting Creep, Creep-Rupture, and Stress-Rupture Tests of Metallic Materials
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
E21-20	Standard Test Methods for Elevated Temperature Tension Tests of Metallic Materials
E94-04	Standard Guide for Radiographic Examination

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