01 / 10Material and service selection

Grey Iron Castings for Housings and Machine Bases

Relia supplies drawing-based grey-iron housings, bases and machinery components with CNC finishing agreed for the working contacts. We review the actual grade, wall and rib sections, bore axis and mounting pads together. Your equipment duty determines the material and acceptance checks; weight or appearance alone does not establish load or damping performance.

Review your grey-iron component
Ribbed housing geometry with a main opening and side region.
Ribbed housing geometry with a main opening and side region.
  1. MaterialThe actual grey-iron specification.
  2. Cast formWalls, ribs, bosses and internal access.
  3. Working fitFinished bores, faces and mounting references.
02 / 10Relia · Manufacturing in China

The Component Duty Leads the Grade Selection

Relia reviews grey-iron components from the controlled drawing and operating brief. The catalogue includes a ribbed cylindrical housing, iron valve-body enquiries and an HT150 base reference. Their jobs differ: a base supports equipment, a housing locates adjoining parts and a fluid body adds an internal boundary. Selecting one of these families does not make its load, pressure or service requirements interchangeable with the others.

  1. BaseSupport footprint, mounting and equipment duty.
  2. HousingBore, wall sections and seating references.
  3. Fluid bodyPassage, connections and actual service conditions.
03 / 10Material and service selection

Graphite Form Helps Explain the Material Choice

Grey iron contains graphite in flake form. Its material characteristics can make it useful for machinable housings and vibration-damping bases, but the actual grade and section remain important. A thicker local region cools differently from a thin rib. Specify the properties needed by the design rather than assuming that all iron parts have one hardness or that a heavy casting automatically carries a particular load.

Angled flanged form with separate connection ends.
Angled flanged form with separate connection ends.
  1. GradeThe ordered material and property requirement.
  2. SectionThe wall and junction being manufactured.
  3. DutyThe reason the designer selected grey iron.
04 / 10Material and service selection

Rib and Boss Junctions Need a Casting Review

The housing reference joins narrow exterior ribs with a larger cylindrical wall and side region. The useful section view shows where those features meet. Avoid treating a large mass at every junction as the default way to strengthen the shape: the local solidification and later machined wall also need review. Proposed changes preserve your functional envelope and require the appropriate drawing release.

  1. RibSupport and thickness at the junction.
  2. BossLocal mass and nearby finished feature.
  3. WallMaterial remaining after the required cut.
05 / 10Material and service selection

The Bore and Mounting Face Locate the Assembly Together

For an iron housing, the primary functional relationship may run from the bore axis to the seating plane. Establish the face and its supports before finishing the related bore and fixing pattern. On a broad base, specify which pads actually contact the machine foundation or frame. A correct overall thickness alone does not show whether the supported assembly will align.

Compartmented housing showing internal access and a mounting boundary.
Compartmented housing showing internal access and a mounting boundary.
BORE AXISPosition the adjoining component

Define size and orientation from the installed reference.

SEATING PLANELocate the actual support contacts

Identify the machined pads that meet the machine frame or foundation.

Fixing patternRelate hole positions and required clearances to the same datum scheme.
06 / 10Material and service selection

Cleaning Access Belongs in the Internal Geometry

A cavity needs a practical route for mold or core material removal before delivery. Mark accessible openings and the regions that become harder to reach after machining or assembly. For a hydraulic or pump-related body, add the actual residue and internal acceptance requirements. Exterior shot-cleaning or paint cannot stand in for an internal cleanliness requirement.

  1. AccessOpenings used to reach the internal regions.
  2. SequenceCasting cleanup and affected CNC intersections.
  3. AcceptanceThe specified internal condition for the actual duty.
07 / 10Material and service selection

Surface Protection Preserves the Working Contacts

Paint, powder coating or a plated condition may be discussed for a particular iron component, with compatibility and specifications agreed for that order. A seating pad, fitted bore or sealing face may need masking or protection. Identify whether final dimensions are accepted before or after the surface operation, and keep packed parts from marking the contacts that have already been checked.

Ribbed circular cover with central and outer references.
Ribbed circular cover with central and outer references.
  1. ProtectExterior surfaces needing the selected system.
  2. Keep clearFitted and seating regions defined by the drawing.
  3. DeliverThe accepted condition protected through packing.
08 / 10Material and service selection

The Sample Separates Material, Shape and Function

Confirm the ordered grey-iron grade and the required material evidence separately from the dimensional report. For a base or housing, the sample should demonstrate the critical seating and bore relationships. Where fluid duty or another operating requirement applies, define its test separately. Relia can provide agreed key-dimensional records, with checks and sampling stated for the order.

  1. MaterialThe actual grade and supplied condition.
  2. GeometryThe useful contacts and their relationships.
  3. FunctionOnly the duty tests specified for this component.
09 / 10Material and service selection

Continue with the Component You Need to Buy

This page explains the material direction. The housing, base and valve-body procurement pages develop their distinct manufacturing and acceptance scopes. Use those pages for a complete component brief rather than repeating a general grey-iron description in every enquiry.

Grey-iron housing and pump-body enquiriesRelated component reference · the order defines its material, dimensions and supplied condition.
HT150 base casting and CNC enquiriesRelated component reference · the order defines its material, dimensions and supplied condition.
Cast-iron valve-body enquiriesRelated component reference · the order defines its material, dimensions and supplied condition.
10 / 10Material and service selection

Contact the Casting Team

Send the actual grey-iron grade, component sections and finished drawing. Identify the seating pads, bore relationship and any internal cleaning or duty requirements.

Qingdao Reliacasting Co., Ltd.

Drawing-based metal castings and CNC-finished OEM components from China.

Qingdao office
No. 96 Shuyuan Road
Qingdao, Shandong, China

Arrange a project visit with us before travelling.

About the manufacturer · Production workflow

Email · drawings and project files[email protected]WhatsApp · initial discussion+1 404 203 0971Phone+86 185 6176 2631Open the project enquiry form

The released drawing, selected material and agreed order define the supplied component and required acceptance evidence.