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Jason & Company supplies various kinds of stainless steel through worldwide mills. We are expanding distributions worldwide and are following international market closely to meet the demands of our clients.


- Stainless Steel Cold Rolled
- Stainless Steel Cold Sheet
- Stainless Steel Hot Rolled
- Stainless Steel Hot Sheet
- Stainless Steel Skelp
- Stainless Steel Polishing / No.4 / No.8 / HL / Mirror

Stainless Steel Surface Treatment
Surface Treatment Code Method and Application
No.1 This is a product that has undergone annealing and pickling treatment after hot rolling.
It is used in cold rolling materials, industrial tanks, and industrial chemical devices.
No.2D No. 2D is a non-glossy cold-rolled product that has undergone annealing and pickling treatment after cold rolling.
Used in petrochemical plants, automobile parts, building materials, and pipes.
No.2B No. 2B is the type that had skin-pass(temper-rolling) performed on No.2D.
It has better gloss and surface flatness compared to No.2D.
It is standard surface class with improved mechanical properties. It is applicable for almost all uses.
No.3 No.3 is polished with 100~120 mesh abrasive.
It has a variety of uses including building exterior and interior, casings for various kinds of home appliances, and kitchen installation.
No.4 No.4 is polishes with 150~180 mesh abrasive. Compared to No.3, this product has a finer abrasion condition.
Its surface is an attractive silvery-white and is used for bathtubs, building exterior and interior, and food industry.
BA BA is bright and highly reflective surface produced by bright annealing after cold rolling.
BA is used in from appliances, small-sized mirrors, kitchenware, building materials and others that require reflective properties.
HL HL is a type of surface with continuous striped pattern acquired by polishing the surface with No.4 abrasive.
It is widely used for building exterior and interior. HL is also used in sashes and doors.
DULL Dull surface is matte finish produced by reducing gloss form No.2B and creating roughness on the surface.
It is widely used in building exterior and interior, roofing and elevators that require reduces light reflection.
Stainless Steel Characteristics and Usage
by Steel Type
Division Characteristics Usage
304 Most widely used steel type. 304 is known for good corrosion resistance, thermal resistance, low-temperature strength and mechanical properties. 304 has good draw ability such as deep drawing and bending. 304 is not hardened by heat treatment. Kitchen ware, sinks, interior piping, hot-water coilers, bath tubs, boilers, automobile parts( wiper, muffler, molding), medical instruments, building materials, facilities in chemical, food and dairy industries, vessel parts.
304L 304L is low carbon 304 steel. Under normal conditions, It has similar corrosion resistance to 304. Excellent resistance to inter-granular corrosion resistant properties without heat treatment and is generally used at temperatures under 400℃ Machinery and tools used in the chemical, coal, and petroleum industry that require high inter-granular corrosion resistance, building materials, heat resistant part and parts are difficult to heat-treat.
316 Excellent corrosion resistance, pitting corrosion resistance and high temperature strength by adding Mo. Useful in severe/harsh conditions. Excellent work hardening. Sea water equipment, equipment for chemical, paper, dye, acetic acid, fertilizer, photo, food industry and CD Bars, nuts and bolts.
316L Low carbon steel type, Has the normal properties of 316 plus excellent inter granular corrosion resistance. Made with 316 steel, excellent inter-granular corrosion resistance, mesh
409L By adding Ti, 409L has good weld-ability and draw-ability. Used for automobile exhaust pipes, heat exchangers, container for which post-heat treatment is not applied.
430 430 is the basic ferrite steel type. 430 is known for low thermal expansion rate and excellent drawing and oxidation resistance. Heat resistant tools, burners, home appliances, skin covers, building materials, nut and bolts, CD Bars, mesh