DUPLEX STEEL S32760 fasteners bolt screw nut washer

Description

GB 022Cr25Ni7Mo4WCuN
ISC S27603
UNS S32760
ISO X2CrNiMoCuWN 25-7-4
EN X2CrNiMoCuWN 25-7-4
W-Nr. 1.4501

S32760 (F55, 1.4501) is a high alloy super duplex stainless steel designed for use in a wide range of highly corrosive environments.S32760 dual phase steel has strong strength and corrosion resistance and is mainly used in chemical processing, petrochemical and subsea equipment.It has strong chloride corrosion resistance, high thermal conductivity and low coefficient of thermal expansion.High chromium, molybdenum and nitrogen content make it highly resistant to pitting, crevice corrosion and other corrosion.S32760 duplex steel has superior comprehensive properties to general duplex steel, such as 2205 and S31803.

S32760 dual-phase steel can withstand various inorganic and organic acids, and the added copper element makes it have excellent resistance to non-oxidizing acid corrosion. S32760 is also resistant to strong alkali corrosion. However, S32760 dual-phase steel is not suitable for long-term operation temperature above 300℃, because the toughness of the material will decrease significantly above this temperature.

 

Chemical element content(%)

S32760 Min% Max%
C 0.03
Si 1
Mn 1
P 0.03
S 0.03
Cr 24 26
Ni 6 8
Cu 0.5 1
Mo 3 4
N 0.2 0.3
W 1
More Cr+3.3Mo+16N≥40

Mechanical property

condition Round bar
Heat treatment 1100℃,Quenched in water
Tensile strengthσb Mpa ≥750
Yield point σs Mpa ≥550
Elongation δ % ≥25
Hardness HBW HRC≤30

 

Fastener type

BOLT Hex bolt DIN931(ISO 4014)

DIN933(ISO 4017)

DIN961(ISO 8676)

ANSI B18.2.1

JIS B1180

Hex flange bolt DIN6921

ANSI B18.2.1

Carriage bolt DIN603(ISO 8677)

ANSI B18.5

Eye bolt DIN580

DIN444

Square head bolt ASME B18.2.1

JIS B1182

T bolt DIN186

JIS B1166

U bolt DIN3570

IFI136

ASME B18.31.5

Anchor bolt ASME B18.31.5

JB/ZQ 4363

JB/ZQ4364

SCREW Hex socket screw DIN912(ISO 4762)

DIN7984

DIN7991(ISO 10642)

ISO 7380

ASME B18.3

Machine screw DIN963(ISO 2009)

DIN964(ISO 2010)

DIN965(ISO7046)

DIN966(ISO7047)

ANSI B18.6.3P

ANSI B18.6.3F

DIN84(ISO 1207)

DIN85(ISO 1580)

Set screw DIN913(ISO 4026)

DIN914(ISO 4027)

DIN915(ISO 4028)

DIN916(ISO 4029 )

ANSI B18.3

Tapping screw ISO7049

ISO 7050

JIS B1122T

DIN7982

DIN968

Wooden screw DIN571

ANSI B18.2.1

NUT Hex nut DIN 934(ISO 4032)

ANSI B18.2.2

ANSI B18.2.4

DIN 936(ISO 4035)

DIN 439(ISO 4036)

ISO 8674(UNI 5587)

Hex flange nut DIN6923(ISO 4161

ANSI B18.2.4.4M)

IFI 145

Lock nut DIN985

DIN982

DIN980

DIN6926

ANSI B18.16.6

Cover nut DIN1587

DIN917

Square nut DIN557

DIN562

ANSI N18.2.2

STUD Stud DIN975

DIN976

IFI136

WASHER Flat washer DIN125(ISO 7089/ISO 7090)

DIN126(ISO 7091)

DIN9021(ISO 7093)

ANSI B18.22.1

Spring washer DIN127

DIN7980

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