국내 주요실적
 - 평택 (평택 LNG 생산기지공사)
 - 보령 (보령 화력발전소공사)
 - 인천 (인천 LNG인수기지공사 , 송도 셀트리온공사)
 - 통영 (통영 LNG 인수기지현장)
 - 광양 (광양 LNG 생산기지공사)
 - 울산 (SK NEW FCC공사)
 - 여수 (GS 칼텍스정유공사 , 호남석유화학공사)
 - 대산 (현대석유화학공사 , 서산비축기지공사)
 - 하동 (하동화력 발전소공사)
 해외 주요실적
 - 카타르 Q-Chem Project
 - 사우디아라비아 Sahara Al-Waha PDH PP Project
 - 필리핀 Petro FCC Project
 - 필리핀 Petron BTX Project
 - 이란 EB Plant Project
 - 이란 South Par Project
Unit : g
B
O
L
T
Grade Material Min Tempering
Temperature
˚F(˚C)
Tensile
Strength
(Min.)
Yield
Strength
(Min.)
Elongation
% (Min.)
Reduction
% (Min.)
Brinell
Hardness
Recommended Bolting
Temperature Range
Min. ˚C Max. ˚C
ASTM A193
Gr. B7
AISI (4140,
4142, 4145)
1,100(593) 125,000psi 105,000psi 16 50 - -100 400
ASTM A193
Gr. B7M
1,150(620) 100,000psi 80,000psi 18 235 Max.
ASTM A193
Gr. B16
Cr-Mo
Vanadium
1,200(650) 125,000psi 105,000psi - 0 520
ASTM A193
Gr. B8
AISI 304 Carbide
Solution
Treated
75,000psi 30,000psi 30 223 Max. -250 575
ASTM A193
Gr. B8M
AISI 316 600
ASTM A193
Gr. L7
AISI (4140
4142, 4145)
- 125,000psi 105,000psi 16 -100 400
ASTM A193
Gr. B8
AISI 304 75,000psi 30,000psi 35 - -250 575
ASTM A193
Gr. B8M
AISI 316 223 Max. 600
JIS G4105
SCM 440
AISI (4140,
4142, 4145)
JIS G410
SCM440
(530~630) 100kgf/㎟ 85kgf/㎟ 12 45 285~252 - -
JIS G4107
SNB 5
AISI 501 (595) 70kgf/㎟ 56kgf/㎟ 16 50 -
JIS G4107
SNB 7
AISI (4140,
4142, 4145)
JIS G4107
SNB 7
88kgf/㎟ 74kgf/㎟
JIS G4107
SNB 16
Cr-Mo
Vanadium
(650) 18

N
U
T

ASTM A194
Gr. 2H
AISI 1405
JIS G4051
S45C
850(455) - - - - 248~352 0 450
ASTM A194
Gr. 2HM
AISI 1045
JIS G4051
S45C
1,150(620) 159~237 - -
ASTM A194
GR. 4
C-Mo
Steel
1,100(595) 248~352 -100 520
ASTM A194
GR. 7
AISI (4140,
4142, 4145)
565
ASTM A194
GR. 8
AISI 304 - 126~300 -250 575
ASTM A194
GR. 8M
AISI 316 600
JIS G4051
S45C
AISI 1045
JIS G4051
S45C
(550~650) 70kgf/㎟ 50kgf/㎟ 17 45 201~269 - -
Unit : inch
LENGTH Tolerances on Stud Lengths-in.
DIAMETER L ≤ 6in L > 6in
Over 5/16in.
to 3/4in.
±1/16 ±1/8
Over 3/4in.
to 1-1/4in.
±1/8 ±3/16
Over 1-1/4in. ±1/4 ±1/4
Unit : mm
Diameter M8 M10 M12 M14 M16 M18 M20
d Tolerance 0
-0.15
0
-0.18
0
-0.21
s Basic 18 20 22 25 28 30 32
Tolerance +1.9
0
+2.2
0
+2.6
0
+3.0
0
+5.0
0
t Class 1 Basic - 12 15 18 20 22 25
Tolerance +1.1
0
+1.3
0
Class 2 Basic 11 15 18 21 24 27 30
Class 3 Basic 16 20 24 28 32 36 40
Tolerance +1.0
0
+1.3
0
+1.8
0
L Basic 20-30
Tolerance ±0.42
32-50 ±0.5
55-80 ±0.6
90-120 ±0.7
140-150 ±0.8