Body Casting: Temperature Range -29°C to 593°C

Component Specifications

Definition

A body casting is the primary structural component of a forged steel valve, manufactured through precision casting processes to create complex internal passages and mounting surfaces that direct, control, or regulate fluid flow in industrial piping systems. This component withstands high pressures, temperatures, and corrosive environments while maintaining dimensional stability and leak-proof performance.

Working Principle

The body casting serves as the pressure-retaining envelope that houses internal valve components (disc, seat, stem). It directs fluid through designed flow paths while withstanding system pressure through its structural design and material strength. The casting's geometry determines flow characteristics, pressure drop, and connection interfaces with piping systems.

Materials

ASTM A216 WCB (Carbon Steel), ASTM A217 WC6/WC9 (Chrome-Moly Steel), ASTM A351 CF8/CF8M (Stainless Steel), ASTM A494 (Nickel Alloys). Typical composition includes controlled carbon content (0.25-0.30% for WCB), manganese, silicon, and alloying elements for specific service conditions.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Size Range	DN15 to DN600 (1/2" to 24")
Surface Finish	Ra 3.2-6.3 μm
Wall Thickness	ASME B16.34 compliant
Casting Quality	Radiographic testing per MSS SP-55
Pressure Rating	Class 150-2500
Temperature Range	-29°C to 593°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 17292, API 600, ASME B16.34, MSS SP-55, DIN EN 12516

Parent Products

This component is used in the following industrial products

Forged Steel Valve Body

A forged steel valve body is the primary pressure-retaining component in industrial valve assemblies, manufactured through hot forging processes for superior structural integrity.

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Engineering Analysis

Risks & Mitigation

Casting defects (porosity, inclusions)
Dimensional inaccuracies
Material inconsistencies
Corrosion in aggressive environments
Thermal stress cracking
Pressure boundary failure

FMEA Triads

Trigger: Improper heat treatment
Failure: Reduced mechanical strength and premature cracking
Mitigation: Implement controlled furnace processes with temperature recording and material certification

Trigger: Casting mold misalignment
Failure: Wall thickness variations leading to pressure containment failure
Mitigation: Use precision tooling with regular inspection and implement statistical process control

Trigger: Inadequate cleaning of casting sand
Failure: Internal surface defects causing erosion and leakage
Mitigation: Establish rigorous cleaning procedures with visual and borescope inspection

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Dimensional tolerances per ASME B16.34: ±1.5mm on flange faces, ±0.8mm on bore diameter. Pressure testing: 1.5 times rated pressure for shell test, 1.1 times for seat test.

Test Method

Hydrostatic pressure testing per API 598/ISO 5208, radiographic examination per ASME Section V, material verification per ASTM standards, dimensional inspection per ASME B16.34.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Body Casting

Manufacturer profiles associated with Body Casting.

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Frequently Asked Questions

What is the difference between cast and forged valve bodies?

Cast bodies are formed by pouring molten metal into molds, allowing complex internal geometries, while forged bodies are shaped by hammering/pressing solid metal, offering superior grain structure for high-pressure applications. Forged steel valve bodies typically refer to valves made from forged steel materials, though the body itself is often cast.

How are body castings tested for quality?

Body castings undergo non-destructive testing including radiographic examination (RT), liquid penetrant testing (PT), ultrasonic testing (UT), and pressure testing per API 598. Material certification and heat treatment verification are also required.

What factors determine material selection for body castings?

Material selection depends on service temperature, pressure, fluid corrosivity, and industry standards. Carbon steel (WCB) is common for general service, while stainless steels (CF8/CF8M) handle corrosive fluids, and alloy steels (WC6/WC9) suit high-temperature applications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Body Casting