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1284-2 Jeongwang-dong, Siheung-si, Gyeunggi-do, KoreaTel : 82-31-499-1669 Fax : 82-31-499-2684
Almost 30 years of accumulated
knowledge and field-proven
experience and a solid customer
satisfaction track record make
SJM one of the best expansion
joint suppliers in the global
market today.
www.sjmflex.com www.sjmflex.com
SJM possesses great expertise and accumulated know-how in various bellows forming and expansion joint manufacturingtechnologies that include Hydraulic Forming, One-PitchForming, Mechanical Roll Forming, and Single and Multi-PlyMetals Forming. SJM’s forming equipment have the followingcapabilities.
Hydraulic forming from 2� to 100� diameter.(Press : 75, 500, 1000 TON)One pitch forming from 3/4� to 4� diameter.Automatic forming machine from 3/4� to 8� diameter.Mechanical roll forming from 59� to 236� diameter.
SJM selects an appropriate bellows material for each customer’sapplication requirement for strength, operating temperature, and corrosion resistance.Although the most commonly used bellows material at SJM is18.8Ti(Type 316L) stainless steel, other available alloys are ;
Selected 300 Series Stainless SteelIncoloy 800, 800H, and 825Inconel 600 and 625Monel 400Hastelloy B and C SeriesTitaniumCarbon Steel
Bellows Materials
Bellows forming
Since its foundation in 1975, SJM has been recognized as one of the world’s leadingmanufacturers of high quality metal and non-metal expansion joints.
SJM’s continuous investment of its efforts into extensive research and development in expansion joints’ thermal vibration, noise, and leakage areas forms the solid basis on which SJM custom-designs and manufactures reliable expansion joints to meet each customer’s requirements.
SJM manufactures a wide variety of bellows and expansion joints ranging from 3/8� to 236� of nominal diameter in accordance to the latest EJMA standards.
SJM’s Quality Assurance System has been certified by ISO9001 & ASME section VIII (U Stamp) and in compliance with ASME B31.1, B31.3, AWS B1.1, AISI, ASIC, and Stoomwezen.
X ray 300KV - 10 MA and 5 MA Magnetic Particle Ultrasonic and Eddy Current Testing Dye Penetrant Helium and Halogen Leak Detection Pneumatic TestingHydro TestingCycle TestingSpring Rate TestingHardness TestingUniversal TestingDead Weight Testing
Bureau Veritas
Germanischer Lloyd
ISO9001
American Society ofMechanical Engineers
Gaztransport & Technigaz
Det Norske Veritas
American Bureau of Shipping
SJM possesses great expertise and accumulated know-how in various bellows forming and expansion joint manufacturingtechnologies that include Hydraulic Forming, One-PitchForming, Mechanical Roll Forming, and Single and Multi-PlyMetals Forming. SJM’s forming equipment have the followingcapabilities.
Hydraulic forming from 2� to 100� diameter.(Press : 75, 500, 1000 TON)One pitch forming from 3/4� to 4� diameter.Automatic forming machine from 3/4� to 8� diameter.Mechanical roll forming from 59� to 236� diameter.
SJM selects an appropriate bellows material for each customer’sapplication requirement for strength, operating temperature, and corrosion resistance.Although the most commonly used bellows material at SJM is18.8Ti(Type 316L) stainless steel, other available alloys are ;
Selected 300 Series Stainless SteelIncoloy 800, 800H, and 825Inconel 600 and 625Monel 400Hastelloy B and C SeriesTitaniumCarbon Steel
Bellows Materials
Bellows forming
Since its foundation in 1975, SJM has been recognized as one of the world’s leadingmanufacturers of high quality metal and non-metal expansion joints.
SJM’s continuous investment of its efforts into extensive research and development in expansion joints’ thermal vibration, noise, and leakage areas forms the solid basis on which SJM custom-designs and manufactures reliable expansion joints to meet each customer’s requirements.
SJM manufactures a wide variety of bellows and expansion joints ranging from 3/8� to 236� of nominal diameter in accordance to the latest EJMA standards.
SJM’s Quality Assurance System has been certified by ISO9001 & ASME section VIII (U Stamp) and in compliance with ASME B31.1, B31.3, AWS B1.1, AISI, ASIC, and Stoomwezen.
X ray 300KV - 10 MA and 5 MA Magnetic Particle Ultrasonic and Eddy Current Testing Dye Penetrant Helium and Halogen Leak Detection Pneumatic TestingHydro TestingCycle TestingSpring Rate TestingHardness TestingUniversal TestingDead Weight Testing
Bureau Veritas
Germanischer Lloyd
ISO9001
American Society ofMechanical Engineers
Gaztransport & Technigaz
Det Norske Veritas
American Bureau of Shipping
1284-2 Jeongwang-dong, Siheung-si, Gyeunggi-do, KoreaTel : 82-31-499-1669 Fax : 82-31-499-2684
Almost 30 years of accumulated
knowledge and field-proven
experience and a solid customer
satisfaction track record make
SJM one of the best expansion
joint suppliers in the global
market today.
www.sjmflex.com www.sjmflex.com