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Materials

What materials can we produce? see below instruction

Brass /Copper bar

Typical brass HPB59-1 china standard /C36000 ASTM Excellent machinability ,good for CNC or automatic machining ,lower cost
Forging brass C37700 ASTM Suitable for forging complex structures ,good metal flow with stable forming,good for high pressure valve and fittings ,precision is well controlled
Lead free brass C46500 USA standard Environmentally friendly , compliant with drink water standards(NSF,Wars ),Use for potable water systems ,plumbing fittings
CW617N Brass ,DZR brass ,CW602N European Standard Excellent for forging performance ,high strength,stable and widely used in the European market EN12165 /EN 12164

Stainless Steel Bar / Tube

Common stainless steel material 304/304L /316/316L

Super Duplex stainless steel 2205/ 2507

Monel 400

Hastelloy C276

Carbon Steel Bar/ Tube

• ASTM A105 (Forged Carbon Steel)
• ASTM A216 WCB (Cast Carbon Steel)
• ASTM A350 LF2 (Low Temperature Carbon Steel)
• ASTM A234 WPB (Carbon Steel Pipe Fittings)
• ASTM A106 Gr.B (Seamless Pipe)
AISI4140 Suitable for high pressure fittings .

Alumium material

Code 6061 general-purpose, excellent machinability

Code6063 ideal for extrusion profiles

Code 5052 Good corrosion resistance,marine applications

Valve Packing Material Comparison Table

Note: We can provide all the below materials for both valve packing and O-ring. You can select the appropriate material according to your product's working temperature, pressure and medium requirements

Material	Temperature Range	Max Pressure	Key Advantages	Typical Media	Application Scenarios
PTFE (Polytetrafluoroethylene)	-200°C ~ 260°C	≤ 100 bar (PN100)	Excellent chemical resistance; low friction coefficient; anti-sticking, anti-aging; can be filled with glass fiber/carbon/graphite to enhance performance	Water, oil, steam, various chemicals, corrosive fluids, clean media	Corrosive service; food, pharmaceutical, clean service; general industrial valves
FKM (Fluoroelastomer / Viton®)	-20°C ~ 200°C (short-term 220°C)	≤ 64 bar	Excellent high-temperature resistance; good oil, ozone and aging resistance; good resilience (elastomer)	Oil, fuel, aromatic hydrocarbons, weak acids	Hydraulic systems, petroleum industry, high-temperature oil systems
Flexible Graphite	-200°C ~ 650°C (up to 800°C with Inconel reinforced)	≤ 250 bar	Ultra-high temperature resistance; good thermal conductivity; low friction; good tightness; excellent for steam service	Saturated steam, superheated steam, oil, high-temperature water	Steam valves (boiler, power plant); high-temperature, high-pressure (HPHT) valves
PEEK (Polyetheretherketone)	-50°C ~ 260°C (continuous service)	≤ 250 bar	High mechanical strength and rigidity; low creep; excellent dimensional stability; good wear and fatigue resistance; good chemical resistance; better high-temperature performance than PTFE	Water, oil, steam, chemicals, harsh industrial fluids	High pressure, high temperature (HPHT) service; critical service valves; long-life, wear-resistant packing scenarios
NBR (Nitrile Butadiene Rubber)	-30°C ~ 120°C	≤ 25 bar	Good oil and fuel resistance; low cost; good resilience	Water, oil, fuel	Low-pressure water/oil valves; general low-pressure industrial scenarios
EPDM (Ethylene Propylene Rubber)	-40°C ~ 150°C	≤ 25 bar	Excellent steam and hot water resistance; good weather and ozone resistance	Water, hot water, steam, weak chemicals	Water systems, HVAC, cooling systems; low-pressure steam valves