About KST

Keystone(KST) trading group is a leading foreign trade enterprise, specializing in high-quality steel flanges. We provide durable and resilient flanges for various industries, including oil & gas and petrochemical plants. With a focus on quality and customer satisfaction, we offer prompt delivery and comprehensive after-sales support. Constantly innovating, we meet evolving market needs, making us a reliable global partner for steel flanges.

What we delivery

WHY KST FLANGE?

  • KST FLANGE offers
  • ASME B16.5 / B16.47 Flanges
  • BS4504 Flanges
  • DIN Flanges
  • JIS Flanges
  • Marine Flanges
  • Stainless Steel Flanges
  • Slip-on Weld Neck Flanges
  • Weld Neck Flanges
  • Plate Flat Weld Flanges
  • Materials utilized by KST FLANGE
  • CARBON STEEL – ASTM/ASME SA-105, A-350 LF-2, LF-3, A694, SA-516-70, A36
  • CHROME ALLOYS – A-182-F-1, F-5, F-6, F-9, F-91, F-11, F-12, F-22
  • Alloy 20, many other H grades
  • ALUMINUM – 3003, 6061, 5083 and other grades upon request
  • STAINLESS STEEL – A-182 – F-304, Dual Grade 304/304L, Dual Grade 316/316L
  • HASTALLOY – B-2, C-276, G, X, C-22
  • INCOLLOY – 800, 825, 800H, 800HT
  • COPPER – 90/10 (C70600), 70/30 (C71500)
  • TITANIUM – Gr2, Gr12

What your benefit

KST stands as a versatile provider, offering an array of metal products, including flanges, forgings tailored for petroleum and chemical industries, and stainless steel forgings. Our commitment to customization based on drawings and specific chemical requirements allows us to meet varied industry demands. With a dedicated emphasis on quality and service, our positive approach permeates every aspect of production. Rigorous manufacturing processes and meticulous control measures ensure that each product aligns with our commitment to excellence. This unwavering dedication has earned us trust and recognition globally, making KST a reliable choice in the realm of metal products.
15900416641
zengqingp@hotmail.com

online service

  Tel：15900416641

 Email：zengqingp@hotmail.com

 Wechat：15900416641

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