Valve Parts Casting butterfly valve Cast stainless steel

Product Details

Valve Parts Casting description 

Material: low alloy steel (WC6)

Standard: ASTM A217M

Casting process:  alkaline phenolic resins

Weight: 650KGS

Nominal pressure:PN2.5~PN25

Heat treatment method: NBK and tempering

Surface treatments:  shot blasting and polishing

Chemical Composition:

C:0.12  

Si:0.4

Mn:0.65

S:0.011

P:0.024

Cr:1.2

Ni:0.5

 Mechanical property:

Tensile strength: 540MPa

Yield strength: 325MPa

Elongation: 25%

Reduction of area:44%

Tolerance grade: CT10

Application: pump, valve, impeller, power facilities, Construction Tools, Oil and gas system, Agriculture Machinery, Firefighting Equipment, Metallurgical Equipment, Shipyard, mining equipment parts.


Technical key points

Ø In order to get a better slagging effect, set larger risers and increase pouring temperature appropriately. In normal situation, WCB carbon steel at 1570 ℃ -1580 ℃, stainless steel at 1580 ℃ -1590 ℃.

Ø  pouring speed: in the case of ensuring smooth gas discharge from the cavity, higher pouring speed can be used;pouring operation requirements: after casting, as soon as the castings solidified, remove the pressure iron and box, to reduce the casting shrinkage resistance and avoid cracks and flaws.

 

QUALITY ASSURANCCE

Ø Strict contract auditing invloved all departments to assure the feasibility of each order.

Ø Process design and validation before bulk production.

Ø Strictly control on all raw and auxiliary materials, All raw materials reach the world advanced level.

Ø On-site inspection to all processes, inspection record keep traceable for 3 years.

Ø All inspectors are skilled with international certificates.

Ø Qualified WPS and professional welders guarantee welding quality.

Ø 100% inspection of finished sprouts before shipment.

Ø Advanced and complete testing and inspection equipment: NDT, metal Microscope, impact tester, hardness tester...

Ø Regular training for inspection staff

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OUR SERVICE

Ø We provide free technical service about casting parts and application issues.

Ø Free on-site touring and introduction of our factory

Ø We provide process design and validation for free

Ø We can guarantee on-time delivery of samples and goods

Ø Close follow-up of all orders by special person and keep customers informed timely

Ø All after-sale request will be responded in 24 hours

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FAQ

1. What is the delivery time of pattern, casting parts and machining finished parts?

  A: In general, pattern making time is 20-40 days base on the design of the parts, sample making time is 20-30 days, machining finished parts lead time is 40-60 days. The lead time will vary base one different design and weight of the parts, please contact us for details.

2. What’s the minimum wall thickness of the castings you produce?

  A: The minimum wall thickness of the castings we produce is 8mm.

3. Which kinds of NDT methods that your company can provide?

  A: The NDT we provide are PT, MT, UT and RT.

4. Which welding equipment do you have?

  A: We mainly use SMAW, MAG, TIG, CW according to the material and characteristic of the casting

5. What equipment does your company use when you examine the chemical composition?

  A: We use Spark Spectrometer, testing result are printed automatically

6. What equipment do you have for NDT inspection?

  A: We have ultrasonic flaw detector, av miniature magnetic yoke detector, magnetic detector and penetration detector.

 

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