High Hardness Alloy Valve Seat

Description

Product:high hardness, corrosion & wear resistant long service life Valve seat

MOQ: 1 pieces

Model NO: Customized

Size: as Drawing

Machining tolerance: +/-0.01mm

Application: Industrial Valve, Pump, Pipeline Equipment Use

Material: Cr Mo alloy Steel, Cast Stainless Steel, High Manganese Steel, High Chromium Cast Iron, Nickel Hard Alloy, Stellite Alloy

Surface Treatment: Plain Machined / Polished / Anti-corrosion Coating Optional

Manufacturing Process: Precision Casting + CNC Finish Machining

Plant: We Have Our Own Integrated Casting & Machining Factory

After-sales Service: 24h Online Technical Support

Warranty: Quality Warranty Offered

Certification: CE, ISO 9001:2000, Material SGS Test Certificate

Standard: ASME, JIS, GB, API Valve Component Standards

Inspection: UT ultrasonic test, metallographic inspection, hardness test, dimensional tolerance check, corrosion resistance test, spectrum analysis etc

Application: used in metallurgy, mining, chemical industry, cement plant, oil & gas pipeline, sewage treatment, high-pressure crushing equipment valves, power station fluid control valves, etc.

Color: to Order (Metallic silver machined finish / Custom anti-rust black coating)

Delivery Time: 7 – 30 days/ negotiable based on order quantity

Transport Package: Steel Frame, Plywood Wooden Cases, Anti-collision Protective Wrapping

Advantage: 20+ Years Alloy Casting Production Experience, One-stop Custom Machining Service, Best After-sale Service, Professional R&D & QC Team.

Our Photos Valve seat:

Alloy Valve Seat Material Composition

We supply multiple mainstream valve seat alloy grades:

High Manganese Steel (ZGMn13CrMo): 10%-14% Mn, 1.0%-1.4% C, austenitic wear-resistant steel;
High Chromium Cast Iron: 11%-13% Cr, 0.8%-1.3% C, martensitic anti-abrasion alloy;
Cr-Mo Alloy Cast Steel: 1.7%-6.0% Cr, 0.2%-1.2% Mo, excellent high temperature & pressure resistance;
Nickel Hard Cast Iron (Ni-Hard 1/4): 3.0%-6.5% Ni + 3.0%-7.0% Cr, superior anti-corrosion & fine particle wear resistance;
Stellite Cobalt Alloy: Ultra high hardness for severe corrosive & high-temperature valve working conditions.

Core Features of Alloy Valve Seat

Excellent comprehensive hardness & abrasion resistance: Surface hardness adjustable from HB300 to HB720, resistant to particle scouring, mineral slurry and high-pressure fluid erosion;
Stable dimensional stability after finish CNC machining, tight sealing performance for industrial valves, zero leakage under rated pressure;
Flexible alloy matching: Select corresponding material for low/high temperature, acid/alkali corrosion, heavy particle wear working environments;
Good thermal fatigue resistance, not easy to deform or crack under frequent valve opening & closing cycles;
Custom machined flat sealing surface, flatness tolerance controlled within +/-0.01mm to guarantee long-term sealing lifespan.

Material Limitations

High manganese steel valve seats perform weakly under long-term fine particle low-stress wear;
Nickel hard alloy valve seats have slightly lower toughness, not suitable for ultra-heavy impact instant pressure surges;
Cobalt stellite alloy has superior performance but higher raw material cost for mass orders.

Applicable Scenarios

Ball valve, gate valve, globe valve, butterfly valve spare sealing seat parts; fluid control equipment in mining slurry pipelines, cement ash conveying valves, chemical acid-base medium valves, oil & gas well control valves, power plant boiler water circulation valves, sewage treatment wear-resistant valves.

Reference Standard (Valve Seat Alloy Nominal Chemical Composition %)

Standard Grade	C	Si	Mn	Cr	Mo	Ni	S	P
AS2074/L2A	0.45-0.55	≤0.75	0.50-1.00	0.80-1.20	——	——	≤0.04	≤0.04
AS2074/L2B	0.55-0.65	≤0.75	0.50-1.00	0.80-1.50	0.2-0.4	——	≤0.04	≤0.04
AS2074/L2C	0.70-0.90	≤0.75	0.8-1.2	1.30-2.40	0.2-0.4	——	≤0.04	≤0.04
ZG42Cr2Si2MnMo	0.38-0.48	1.5-1.8	0.4-1.0	1.8-2.2	0.2-0.6	——	≤0.04	≤0.04
ZG45Cr2Mo	0.40-0.48	0.8-1.2	0.5-1.2	1.7-2.0	0.8-1.2	≤0.5	≤0.04	≤0.04
ZG30Cr5Mo	0.25-0.35	0.4-1.0	0.5-1.2	4.0-6.0	0.2-0.8	≤0.5	≤0.04	≤0.04
ZG40Cr5Mo(FED-4A)	0.35-0.45	0.4-1.0	0.5-1.2	4.0-6.0	0.2-0.8	≤0.5	≤0.04	≤0.04
ZG50Cr5Mo	0.45-0.55	0.4-1.0	0.5-1.2	4.0-6.0	0.2-0.8	≤0.5	≤0.04	≤0.04
ZG60Cr5Mo	0.55-0.65	0.4-1.0	0.6-1.5	4.0-6.0	0.2-0.8	≤0.5	≤0.04	≤0.04
FMU-29	0.25-0.45	0.3-1.0	0.6-1.5	6.0-8.0	0.2-0.4	——	≤0.04	≤0.04
FMU-11	0.90-1.30	0.3-1.0	0.6-1.5	11.0-13.0	0.3-0.5	——	≤0.04	≤0.04
FMU-13	0.80-1.30	0.4-1.2	0.8-1.5	11.0-13.0	0.4-0.8	——	≤0.04	≤0.04
FMU-14	1.60-2.00	0.4-1.2	0.8-1.5	11.0-13.0	0.6-1.0	——	≤0.04	≤0.04

FAQ :

Q: Can you manufacture Customization Valve seat products?

A: Yes, we can.

We can produce both standard and special customized Valve seat products.

Our factory can make them strictly according to your technical drawings and physical samples.

Q: Do you provide free Valve seat samples?

A: Yes, usually we provide free samples for sealing & wear testing under the condition of freight paid by customer.

Q: What is the Warranty for our Valve seat products ?

A: If any quality problems caused by our production side occurred in warranty period, we will take on the shipping cost and free replacement.

Q: Can the Valve seat products be customized as our need, such as put on your own brand logo?

A: Surely our Valve seat products can be customized as your need, Engrave or emboss your exclusive brand logo on the valve seat surface is also available.

Q: What information do we need to provide to you in order to confirm our Valve seat parts order?

A: Provide us your technical drawings or detailed dimensional specifications (inner diameter, outer diameter, thickness, sealing surface requirements) for our technical staff to confirm production drawing.

Q: Do you test all your Valve seat goods before delivery?

A: Yes, we have 100% full inspection including material spectrum test, hardness test and dimensional tolerance check before delivery

Q: Transportation options?

A: Transported by DHL, UPS, EMS, Fedex, Air freight, Sea freight as client’s delivery request.

Q: Do you support drop shipping for Valve seat?

A: Yes, your drop shipping order is available.

Q: What kinds of materials are available for Valve seat?

A: We supply multiple alloy grades including high manganese steel, Cr-Mo alloy steel, high chromium cast iron, nickel hard alloy, stainless steel and stellite cobalt alloy valve seats, matched for different medium working conditions.

Q: What kinds of wear spare parts do you offer besides Valve seat?

A: We mainly produce various high alloy wear resistant castings, such as ball mill liners, jaw crusher jaw plates, cone crusher mantle & concave, impact crusher blow bars, crusher hammer heads, custom alloy sealing components, etc.

Factory Core Advantages

20-year Professional Wear & Corrosion Resistant Alloy Casting Foundry Operation Experience.
Friendly & High Efficient English Technical & Commercial Online Communication.
Professional Global Export Practices: Exported to over 60 Overseas Countries.