Precision CNC Machining

ENGINEERED
TO SPEC.
BUILT TO LAST.

Specialized CNC machining of WCB and CF8M castings for industrial valves, fittings, and precision components. ASTM certified. ISO 9001:2015 quality.

WCB
ASTM A216 Grade WCB
Cast Carbon Steel
Temp. Range
−29°C to 343°C
Pressure Class
150 to 2500 lbs
Applications
Oil & GasPower GenWater TreatmentPetrochemical
CF8M
ASTM A351 Grade CF8M
316 Cast Stainless
Corrosion Resistant
Temp. Range
−196°C to 538°C
Pressure Class
150 to 2500 lbs
Applications
Chemical ProcessingMarinePharmaceuticalFood Grade
25+Years Experience
50K+Parts Delivered
±0.01mmPrecision Tolerance
ISO 90012015 Certified
Material Specifications

THE RIGHT MATERIAL
FOR EVERY APPLICATION.

We specialize in machining both WCB and CF8M castings — each with distinct properties suited to demanding industrial environments.

WCB
ASTM A216 Grade WCB
Carbon Steel
Cast Carbon Steel
Chemical Composition
Carbon (C)0.30% max
Manganese (Mn)1.00% max
Silicon (Si)0.60% max
Sulfur (S)0.045% max
Phosphorus (P)0.040% max
Temperature Range
−29°C to 343°C
(−20°F to 650°F)
Pressure Class
150 to 2500 lbs
ANSI / ASME
Tensile Strength
70,000 psi min
(485 MPa)
Yield Strength
36,000 psi min
(250 MPa)
Typical Applications
Oil & Gas PipelinesPower GenerationWater TreatmentPetrochemical PlantsSteam SystemsRefineries
Key Advantages
  • Excellent weldability
  • High strength at elevated temps
  • Cost-effective for general service
  • Wide availability of fittings
CF8M
ASTM A351 Grade CF8M
Stainless Steel
316 Cast Stainless Steel
Chemical Composition
Carbon (C)0.08% max
Chromium (Cr)18.0–21.0%
Nickel (Ni)9.0–12.0%
Molybdenum (Mo)2.0–3.0%
Silicon (Si)1.50% max
Temperature Range
−196°C to 538°C
(−320°F to 1000°F)
Pressure Class
150 to 2500 lbs
ANSI / ASME
Tensile Strength
70,000 psi min
(485 MPa)
Yield Strength
30,000 psi min
(205 MPa)
Typical Applications
Chemical ProcessingMarine EnvironmentsPharmaceuticalFood & BeverageCryogenic ServiceCoastal Infrastructure
Key Advantages
  • Superior corrosion resistance
  • Excellent at cryogenic temps
  • Non-magnetic in most forms
  • Hygienic, easy to clean
CNC Capabilities

MACHINED WITH PRECISION.
EVERY TIME.

Our modern CNC facility handles the full machining workflow — from rough turning to final inspection — in-house, ensuring quality at every stage.

CNC Turning

Precision turning of valve bodies, flanges, and shaft components in WCB and CF8M materials.

Max Diameter600 mm
Max Length2,000 mm
Tolerance±0.01 mm
Surface FinishRa 1.6 μm

CNC Milling

Complex profile milling for valve bonnets, flanges, and custom casting geometries.

Axes3 / 4 / 5-axis
Table Size1,200 × 600 mm
Tolerance±0.01 mm
Surface FinishRa 1.6 μm

Precision Boring

Accurate bore finishing for valve seats, housing bores, and precision bearing fits.

Bore Range5 – 500 mm
Roundness±0.005 mm
ToleranceH7 / H8 grade
DepthUp to 800 mm

Threading

All industrial thread standards for valve ends, flanged connections, and pipe fittings.

StandardsNPT / BSP / BSPT
MetricM6 – M100
ImperialUNC / UNF
TypeInternal & External

Surface Grinding

Mirror-quality sealing surfaces for valve seats, gasket faces, and precision mating parts.

Surface FinishRa 0.4 μm
Flatness±0.005 mm
Parallelism±0.005 mm
Table Size600 × 300 mm

Pressure Testing

Full hydrostatic and pneumatic pressure testing with traceable documentation and material test reports.

HydrostaticPer ASME B16.34
PneumaticPer API 598
Test PressureUp to 420 bar
DocumentationFull MTR / cert
Our Products

VALVES, FITTINGS &
CUSTOM COMPONENTS.

Full range of CNC machined valve types and industrial castings in WCB and CF8M — engineered to ASME, API, and ASTM standards.

Gate Valves

GV-WCB/CF8M

Full-port and reduced-port gate valves for isolation service. Rising and non-rising stem options.

Size Range
DN15 – DN600
Pressure Class
ANSI 150 – 2500
WCBCF8MAPI 600API 602ASME B16.34
  • Bolted bonnet
  • OS&Y design
  • Solid and flexible wedge
  • RF / BW / SW ends
Request Quote

Globe Valves

GLV-WCB/CF8M

Y-pattern and T-pattern globe valves for throttling and flow regulation in demanding service.

Size Range
DN15 – DN300
Pressure Class
ANSI 150 – 2500
WCBCF8MASME B16.34API 623
  • Y-pattern & T-pattern
  • Renewable seats
  • Handwheel operated
  • Bellows seal option
Request Quote

Check Valves

CV-WCB/CF8M

Swing and tilting-disc check valves to prevent backflow in pipelines and process systems.

Size Range
DN15 – DN600
Pressure Class
ANSI 150 – 2500
WCBCF8MAPI 594ASME B16.34
  • Swing & tilting disc
  • Outside lever & weight
  • Horizontal / vertical
  • Low pressure drop
Request Quote

Ball Valves

BV-WCB/CF8M

Full bore and reduced bore trunnion ball valves for on/off service with low operating torque.

Size Range
DN15 – DN400
Pressure Class
ANSI 150 – 1500
WCBCF8MAPI 6DASME B16.34
  • Full & reduced bore
  • Trunnion mounted
  • Fire-safe design
  • Anti-static device
Request Quote

Flanges & Fittings

FL-WCB/CF8M

Weld neck, slip-on, socket weld, threaded, and blind flanges machined to ASME B16.5 dimensions.

Size Range
DN15 – DN600
Pressure Class
ANSI 150 – 2500
WCBCF8MASME B16.5ASME B16.47
  • Weld neck / Slip-on
  • Socket weld / Blind
  • RF / FF / RTJ face
  • Full dimensional cert
Request Quote

Custom Castings

CC-WCB/CF8M
Custom

CNC machined from customer drawings or samples. Pump bodies, impellers, manifolds, and special components.

Size Range
To specification
Pressure Class
Per drawing
WCBCF8MPer customer specASTM A216/A351
  • Drawing-to-part
  • Prototype & production
  • Material cert included
  • NDE testing available
Request Quote
Why Choose Us

THE PRECISION
DIFFERENCE.

When tolerances matter and downtime isn't an option, our clients choose PrecisionCast for consistent quality, deep material knowledge, and reliable delivery.

Start a Project

Precision Engineering

±0.01mm
Tolerance

Our CNC equipment is calibrated to deliver tolerances as tight as ±0.01mm. Every part is measured and documented before it leaves our facility.

01

Material Expertise

25+
Years Specializing

We are specialists in WCB and CF8M castings — understanding the unique machining challenges of both carbon steel and stainless steel grades.

02

Fast Turnaround

15 Days
Standard Lead Time

Standard orders shipped within 15 business days. Rush orders accommodated. We maintain stock of common sizes for immediate dispatch.

03

Quality Assured

ISO 9001
2015 Certified

ISO 9001:2015 certified quality management. Full material traceability, dimensional inspection reports, and material test reports with every order.

04

Custom Solutions

100%
In-House Machining

From customer drawing to finished part — all machining is done in-house. No subcontracting. Full process control from raw casting to final inspection.

05
Quality & Standards

CERTIFIED TO THE
HIGHEST STANDARDS.

Every part we machine is backed by traceable material certification, dimensional inspection, and internationally recognized quality standards.

ASTM A216
WCB
Carbon Steel Castings

Standard specification for steel castings suitable for fusion welding, for high-temperature service.

ASTM A351
CF8M
Austenitic Steel Castings

Specification for steel castings — austenitic stainless for general and corrosion-resistant service.

ASME B16.34
Valves — Flanged, Threaded & Welding End

Covers pressure-temperature ratings, dimensions, tolerances, materials, and testing for valves.

API 600
Bolted Bonnet Steel Gate Valves

Covers requirements for design, material, face-to-face dimensions, and testing of gate valves.

API 598
Valve Inspection & Testing

Defines inspection, examination, and pressure test requirements for each valve type.

ISO 9001
2015
Quality Management System

International standard for quality management — ensuring consistent processes and continual improvement.

Our QC Process
01
Raw Material Inspection

Every casting is verified against ASTM material certificates before machining begins.

02
In-Process Inspection

Dimensional checks at each machining stage with calibrated CMM and gauging equipment.

03
Final Dimensional Inspection

Full dimensional report per drawing. All critical dimensions recorded and documented.

04
Pressure Testing & Certification

Hydrostatic / pneumatic pressure test per API 598 / ASME B16.34. Full MTR supplied.

Get a Quote

READY TO START
YOUR PROJECT?

Tell us about your requirements and we'll get back to you within 24 hours with a detailed quote.

Contact Details
Phone
+1 (800) 123-4567
Email
sales@precisioncast.com
Location
Industrial District, Manufacturing Hub
Response Time

We respond to all quote requests within 24 business hours. Urgent requests can be flagged for same-day response.

Business Hours
Mon – Fri8:00 AM – 6:00 PM
Saturday9:00 AM – 1:00 PM
SundayClosed