Alloy Steel

Matterial Chemical and Machenical Specifications of Alloy Steel Bolt Products

ASTM-A193, 325 GRADE L7 B6 B7 B7M B16

CHEMICAL ANALYSIS

 CARBON 0.38 - 0.48 <0.15 0.37 - 0.49 0.37 - 0.47 0.36 - 0.47
MANGANESE 0.75 - 1.00 <1 0.65 - 1.10 0.65 - 1.10 0.45 - 0.70
PHOSPHORUS (Max) 0.035 0.04 0.035 0.035 0.035
SULFUR (Max) 0.04 0.03 0.04 0.04 0.04
SILICON 0.15 - 0.35 <1 0.15 - 0.35 0.15 - 0.35 0.15 - 0.35
NICKEL
CHROMIUM 0.80 - 1.10 11.5 - 13.5 0.75 - 1.20 0.75 - 1.20 0.80 - 1.15
MOLYBDENUM 0.15 - 0.25 0.15 - 0.25 0.15 - 0.25 0.50 - 0.65
COLOMBIUM + TANTALE
TITANIUM
VANDIUM 0.25 - 0.35
ALUMINUM 0.015 (Max)

EQUIVALENTS

 AISI 4142 410 4142 4241
AFNOR 42 CD 4 Z12 C 13 42 CD 4 42 CD 4
DIN 42 Cr Mo 4
1.7225 		X 10 Cr 13
1.4006 		42 Cr Mo 4
1.7225 		42 Cr Mo 4
1.7225 		24 Cr Mo V5-5
1.7733
B.S. 1506.621
Gr A 		1506.713 1506.621
Gr A 		1506.621
Gr A 		1506.661

MECHANICAL REQUIREMENTS

 Tensile Strength N/mm2 (Min) 180 > D > 100 690 690 690
100 > D 760 690
100 > D > 65 795 760
65 > D 860 860 690 860
40 > D > 32
31 > D > 25.4
25 > D > 20
20 > D
Yield Strength N/mm2 (Min) 180 > D > 100 515 515 585
100 > D 585 550
100 > D > 65 655 655
65 > D 725 720 725
40 > D > 32
31 > D > 25.4
25 > D > 20
20 > D
Elongation in 4D (%) (Min) 180 > D > 100 18 18 186
100 > D 15 18
100 > D > 65 16 17
65 > D 16 16 18 18
40 > D > 32
31 > D > 25.4
25 > D > 20
20 > D
Reduction of Area (%) (Min) 100 > D 50 50 50 45
65 > D 50 50 50

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© Part Sazi Mashad 2014