Hot dip galvanizing, also known as hot dip zinc and hot dip galvanizing, is an effective way of metal anticorrosion, mainly used in various industries of metal structure facilities. It is to immerse the steel parts after rust removal into zinc solution melted at about 500℃, so that the surface of t Read More

Stainless steel product surface brightness problem Stainless steel fasteners are mainly cold heading, in the process of processing the product surface will remain oil and cold heading process carbon deposition, so stainless steel fasteners need to be cleaned to restore their stainless steel color, Read More

CHEMICAL COMPOSITION(%) MAXTENSILE TESTHARDNESS(HRB) MAXYIELD STRENGTH (MPA) TENSILE STRENGTH (MPA)ELONGATION IN 4D (%)REDUCTION OF AREA (%)CSiMnPSCrNiMoNOther0.1110.040.034~6/0.4~0.65//5506901650/0.37~0.490.15~0.350.65~1.10.0350.040.75~1.2/0.15~0.25//7208601650/0.37~0.490.15~0.350.65~1.10.0 Read More

Mechanical Property RequirementsStainless Alloy GroupConditionsAlloy Mechanical Property MarkingNominal Dia,in.Full-Size TestsMachined Specimen TestsTensile Strength, ksi Yield Strength, ksiRockwell Read More

Thread Dimensions and Overtapping Allowances for Nuts Hot Dip Zinc Coated per Specification F2329Nominal Nut Size,in.and PitchDiametral Allowance,in.APitch Diameter,in.MinMax0.250-200.0160.23350.23840.312-180.0170.29340.29870.375-160.0170.35140.35710.437-140.0180.40910.41520.500-130.0180.46800 Read More

Mechanical Requirements Class and Grade Diameter,in Heat Treatment Minimum Tempering Temperature °F Tensile Strength, min,ksi Yield Strength, min,ksi (0.2% offset) Elongation in 2 in. Read More

Chemical Requirements for Grades C3 and DH3 NutsElementComposition,%Classes for Grade C3 NutsAGrade DH3 Nuts nABCDEFCarbon:Heat Analysis…0.33-0.400.38-0.480.15-0.250.15-0.250.20-0.250.20-0.250.20-0.53Product analysis…0.31-0.420.36-0.500.14-0.260.14-0.260.18-0.270.19-0.260.19-0.55Manganese Read More

Chemical RequirementsAlloy GroupUNS Designa- tionAlloyCarbonMangan-esePhos- phorus SulfurSiliconChromiumNickelCopperMolybde- num Others Austenitic Alloys1S303003030.152.000.200.15min1.0017.0 to 19.08.0 to 10.0…0.60max…1S30323303Se0.152.000.200.0601.0017.0 to 19.08.0 t Read More

Chemical Requirements for Type 3 Heavy Hex Structural BoltsElementComposition,%Type 3 BoltsABCDEFCarbon:Heat analysis0.33-0.400.38-0.480.15-0.250.15-0.250.20-0.250.20-0.25Product analysis0.31-0.420.36-0.500.14-0.260.14-0.260.18-0.270.19-0.26Manganese:Heat analysis0.90-1.200.70-0.900.80-1.350.40-1.20 Read More