L7 Stud

L7 Stud

L7 stud are all thread studs designed for low temperature service applications. The chemical and physical properties of L7 grade stud is similar to L7 grade bolts, nuts, washers and other fasteners. The material is composed of carbon, manganese, phosphorus, sulfur, silicon, chromium and molybdenum. The mechanical properties of this studs are tested during the quality testing procedure, which involves measurement of size, tensile strength, yield, and elongation. These light weight, corrosion resistant studs with precise dimensions and high tensile strength find application in many industries, like electrical, chemical, engineering, etc.

MATERIALS

EXOTIC ALLOYS

HASTELLOY C22/C276

INCONEL 600/625/718/800/925

MONEL400/K500

NITRONIC 50/60

NITRONIC 50/60

660A,B,D

DUPLEX & SUPER DUPLEX

32760(ZERON 100) SA, FG, FLT

31803 (1.4462)

32750, 31254 (254SMO)

32550 (FERRALIUM)

DUREHETE 950, 1055, 21CrMoV5.7

X22CrMoV12.1 (1.4923)

JETHETE X19

X19CrMoVNbN11.1 (1.4913)

ESSHETE 1250

B16

NIMONIC 80A/90

1.7729

HEAT RESISTING GRADES

304

347

310

410

316

420

317

431

321

904L (URANUS B6)

STAINLESS STEELS

17/4PH (630)

FV520B

PRECIPITATION HARDENED
STAINLESS STEELS

MILD STEEL

817M40 (EN 24)

080M40 (EN8)

823M40 (EN 26)

605M36 (EN 16)

AISI 4140

709M40 (EN 19)

AISI 4340

CARBON & ALLOY STEELS

HIDURON

PHOSPHOR BRONZE

MARINEL

MANGANESE BRONZE

CUPRO NICKEL 70/30 & 90/10

ALUMINIUM BRONZE

SILICON ALUMINIUM BRONZE

COPPER

NON-FERROUS

ALUMINIUM

C63000

BOLTING GRADES

ASTM 193

B5, B6,B7, B7M

B16

B8M CLASS 1 & 2

B8 CLASS 1 & 2

B8C, B8T

ASTM 320

L7, L7A, L7B, L7C, L43

B8M CLASS 1 & 2

B8 CLASS 1 & 2

B8F, B8T

ASTM 325

TYPE-1, 2, 3

ASTM 490

TYPE-1, 2, 3

ASTM 307

GR-A, B

ISO:898 / IS-1367

GR-4.6, 5.6, 8.8, 10.9, 12. 9

NUT GRADES

ASTM 194

GRADE

7

1

7M

2

8

2H

8M

2HM

4

ASTM 563

GRADE 0, A, B, C, C3, D, DH, DH3

ISO:898 / IS-1367

GRADE 4, 5, 6, 8, 10, 12

THREAD FORMS All fasteners can be supplied with the following thread forms:

METRIC

METRIC FINE

METRIC COURSE

UNC

UNF

UN

UNF

UN8

WHIT WORTH

BSW

BSF

ANCILLARY PROCESSES

HEAT TREATMENT

QUENCHING AND TEMPERING

THRU HARDENING

NORMALISING

SOLUTION ANNEALLING

NITRIDING

PRECIPITATION HARDENING

CASE HARDENING


COATINGS

ZINC

XYLAR / XYLAN

ZINC NICKEL

MOLYKOTE

HOT DIP GALV

SHERARDIZING

PTFE / XYLAN

CADMIUM

PHOSPHATE