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FAQ

The challenge in making a material choice is actually verifying that the chosen material best fits the application. This involves taking into account working conditions and flow media properties.

Most important concerning the working conditions is to know the pressure and temperature ratings and for working media is to take in consideration corrosive and erosive properties. Additionally, it might be needed to consider thermal and physical shock, line stress and fire hazards.

Generally speaking when considering temperature limitations of different groups of materials Table 1. should be used as general reference for material selection.

Material Name					Applicable conditions
	ANSI/ASTM		GB
	Casting	Forged	Casting	Forged	Use Tem. ℃	Main medium
Carbon Steel	WCB	A105	ZG2511	25/20Mh	-29—427	Water、Gas、Air、Oil etc.,
Alloy Steel	WC1	F1	/	/	-29—454	Gas、Oil product (Mainly used in high temperature & High Pressure)
	C5	F5	ZGCr5Mo	2Cr5Mo	-29—650
	WC6	F11	ZG20CrMoV	15CrMo 12CrMoV	-29—552
	WC9	F22	ZG15Cr1Mo1V	12Cr1MoV 25Cr2MoV 20Cr1Mo1VA	-29—595
Stainless steel	CF8	304	ZG0Cr18Ni9Ti ZG0Cr18Ni12Mo2Ti	0Cr19Ni9 0Cr18Ni12Mo2Ti	-196—800	Corrosive medium Such as Nitric acid
Stainless steel	CF8M	316			-196—800	Corrosive media such as acetic acid and urea
Chrome nickel molybdenum stainless steel	CF3	304L		00Cr19Ni11	-196—425	Corrosive medium Such as Nitric acid
Chrome nickel molybdenum ultra low carbon stainless steel	CF3M	316L		00Cr17Ni14Mo2	-196—455	Corrosive media such as acetic acid and urea
Alloy 20	CN7M	B462	ZG0Cr20Ni29Cu4Mo2	0Cr20Ni35Mo3Cu4Nb	-196—450	H2SO4、H3PO4、HF、HCL(Mainly used in H2SO4)
		N08020
Alloy 40	CD-4MCu	S32550	ZG0Cr25Ni5Mo2Cu3	0Cr25Ni5Mo2Cu3	-196—450	H3PO4、H2SO4、H2PO4(Mainly used in H3PO4)
		Fnalium255
Monel	M35-1 M-30C	No4400		NiCu28-2.5-1.5	-196—580	HF、HCL、H2SO4、 PFC、NaOH (Mainly used in HF)
		No4405
		k400
		k500