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Stud Bolts ASTM A320

       To American Standard ASTM A 320

           Chemical Analysis and Physical Properties

Low Temperature Services

ASTM A320

 L7 L9 L10 B8 B8C B8M B8T L7M

Chemical Analysis

Carbon

 0.38-0.48 0.36-044 0.15-0.20 <0.08 <0.08 <0.08 <0.08 0.38-0.48

Manganese

 0.75-1 0.65-0.95 0.40-0.60 <2 <2 <2 <2 0.75-1

Phosphorus Maxi

 0.04 0.04 0.04 0.045 0.045 0.045 0.045 0.04

Sulphur maxi

 0.040 0.040 0.040 0.030 0.030 0.030 0.030 0.040

Silicon

 0.20-0.35 0.20-0.35 0.20-0.35 <1 <1 <1 <1 0.25-0.35

Nickle

 -- 3.25-3.75 3.25-3.75 8-12 9-13 10-14 9-12 --

Chromium

 0.80-1.10 0.80-1.10 18-20 17-19 16-18 17-19 0.80-1.10

Miolybdenum

 0.15-0.25 0.15-0.25 2-3 0.15-0.25

Titanium mini

 5 x C

Colombium + Tantanium Mini
 

Tensile Requirements

Min. Tensile Strength

Lbs/Psi

 125.000 125.000 70.000 75.000 75.000 75.000 75.000 100.00

Kg/mm2

 88 88 49 53 53 53 53 70.5

Min Yield Strenght

Lbs/psi

 105.000 105.000 40.000 30.000 30.000 30.000 30.000 80.000

Kg/mm2

 74 74 28 21 21 21 21 56.5

Blongation in 2 inch.min %

 16 16 25 35 35 35 35 18

Reduction of area min %

 50 50 40 50 50 50 50 50

Min.Tensile Strength

 -150 -225 -150 -325 -325 -325 -325 -100
-101 -143 -101 -198 -198 -198 -198 -73

Min.Yield Strength

 15 15 15 15 15 15 15  
4014 4.14 4014 4014 4014 4014 4014  
 

Equivalents

AISI

 4140 4142-4145 2340 2317 304 347 321 316 4140 4142-4145

AFNOR

 42CD4 -- -- Z6CN18-9 Z6CNNb 18-11 Z6CNT 18-11 Z6CND 17-11 42CD4

DIN

 42CrmO4 -- -- X5CrNi 18-09 X10CrNiNb 18-09 X10CrNiNTi 18-09 X5CrNiMo 18-10 42CrMo4

WERKSTOFF

 1.7225 -- -- 1.4301 1.4550 1.4541 104401 1.7225

B.S.

 1506-621 Gr.A -- -- 1506-801 Gr.B -- 1506-821 Gr.Ti 1506-845 1506-62 Gr.A
 

Recommended Temperature Range

Minimum

 -- -- -45oc -198oc -198oc -198oc -198oc -129oc

Maximum

 -- -- -482oc 67oc 675oc 675oc 675oc 575oc

 

Stud Bolts ASTM A193

Stud Bolts ASTM A320

Hexagon Nuts SAE J995

Hexagon Nuts DIN 934

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Dimension of Heavy Hex Nuts

Heavy Head Structural Bolts DIN 7990

Heavy Hex structural Bolts ASTM A325

Heavy Hex Structural Bolts ASTM A325M

Hex Bolts/Screws ASTM A307.Gr.A

Hex Bolts/Screws ASTM A307.GR.B

Hexagon Hex Bolts/ Screws Din 931/933

Hexagon hex Bolts /Screws 931/933

Hexagon Hex Nuts  ASTM A194/A194M

Rounded Hardened Steel Washer

Spring Lock Washer DIN127

Taper & Square Washer

Structural Bolting /Nuts/Washer

Heavy Pattern 'U' Bolts

Anchor Bolts            (Metric Series)

Hardened Steel Washer

Hexagon Socket Head Cap Screws DIN 912

Hexagon Socket Head Cap Screw ANSI B18.3

Heavy Hexagon Nuts ASTM A563, A, B, C, D, DH,DH3

Heavy Hexagon Hex Nuts ASTM A563M
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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