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Bolt Size, in. Threads per inch Stress Area, in. Tensile Strength,lbf Grade A Min Grade B Min Max 1/4 20 0.0318 1900 1900 3180 5/16 18 0.0524 3100 3100 5240 3/8 16 0.0775 4650 4650 7750 7/16 14 0.1063 6350 6350 10630 1/2 13 0.1419 8500 8500 14190 9/16 12 0.182 11000 11000 18200 5/8 11 0.226 13550 ... Read More
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External Threads – Class 2A Nominal Size &Threads/lnch & Series Designation Allowance Major Diameter Pitch Diameter Max Min Max Min Tolerance 0-80 1-64 1-72 2-56 2-64 UNF UNC UNF UNG UNF 0.0005 0.0006 0.0006 0.0006 0.0006 0.0595 0.0724 0.0724 0.0854 0.0854 0.0563 0.0686 0.0689 0.0813 0.0816 0.0514 0... Read More
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Chemical Requirements Alloy Group UNS Designation Alloy Composition,% maximum except as shown C Mn P S Si Cr Ni Cu Mo Others Austenitic Alloys 1 S30300 303 0.15 2.00 0.20 0.15 min 1.00 17.0 to 19.0 8.0 to 10.0 … 0.60 max … 1 S30323 303Se 0.15 2.00 0.20 0.060 1.00 17.0 to 19.0 8.0 to 10.0 … … Se 0.15 ... Read More
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ASTM A563 2007a Table 5 Thread Dimensions and Overtapping Allowances for Nuts Hot Dip Zinc Coated per Specification F2329 Nominal Nut Size, Diametral Pitch Diameter,in. in.and Pitch Allowance,in.A Min Max 0.250-20 0.016 0.2335 0.2384 0.312-18 0.017 0.2934 0.2987 0.375-16 0.017 0.3514 0.3571 0.437-14 ... Read More
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Mechanical Requirements Grade of Nut Nominal Nut Size,in. Style of Nut Proof Load Stress,ksiA Hardness Non-Zinc- Coated NutsB Zinc-Coated NutsB Brinell Rockwell Min Max Min Max Nuts with UNC,8 UN,6 UN and Coarser Pitch Threads O 1/4 to 1-1/2 square 69 52 103 302 B55 C32 A 1/4 to 1-1/2 square 90 68 ... Read More
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Chemical Requirements for Grades C3 and DH3 Nuts Element Composition,% Classes for Grade C3 NutsA Grade DH3 Nuts n A B C D E F Carbon: Heat Analysis … 0.33-0.40 0.38-0.48 0.15-0.25 0.15-0.25 0.20-0.25 0.20-0.25 0.20-0.53 Product analysis … 0.31-0.42 0.36-0.50 0.14-0.26 0.14-0.26 0.18-0.27 0.19-0.26 ... Read More
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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. Min,% Reduction of Area, min,% Hardness max Ferritic Steels L7,L7A,L7B L7C,L70, L71,L72,L73 2-1/2 and under quenched ... Read More
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GRADE CHEMICAL COMPOSITION(%) MAX TENSILE TEST HARDNESS(HRB) MAX YIELD STRENGTH (MPA) TENSILE STRENGTH (MPA) ELONGATION IN 4D (%) C Si Mn P S Cr Ni Mo N Other B5 0.1 1 1 0.04 0.03 4~6 / 0.4~0.65 / / 550 690 16 50 / B7 0.37~0.49 0.15~0.35 0.65~1.1 0.035 0.04 0.75~1.2 / 0.15~0.25 / / 720 860 16 50 / ... Read More
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Chemical Requirements for Type 3 Heavy Hex Structural Bolts Element Composition,% Type 3 Bolts A B C D E F Carbon: Heat analysis 0.33-0.40 0.38-0.48 0.15-0.25 0.15-0.25 0.20-0.25 0.20-0.25 Product analysis 0.31-0.42 0.36-0.50 0.14-0.26 0.14-0.26 0.18-0.27 0.19-0.26 Manganese: ... Read More
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Chemical RequirementsA,B,C,D GRADE SYMBOL MATERIAL UNS NUMBER CARBON, % MANGANESE, % PHOSPHORUS, % SULFUR,E % SILICON, % CHROMIUM, % NICKEL, % MOLYBDENUM, % TITANIUM, % COLUMBIUM AND TANTALUM, % NITROGEN, % OTHER ELEMENTS, % 1 CARBON 0.15MIN 1.00 0.040 0.050 0.40 … … … … … … … 2,2HM, AND 2H CARBON 0... Read More
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