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JOHN TEK
NSSC 550 MATERIAL
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鑽尾螺絲/屋頂螺絲
JOHN TEK
超完美不銹鋼

JOHN CHEN SCREW AND NIPPON STEEL JOINTLY DEVELOPED A SPECIAL METERIAL YUS550(NCCS550) TOGETHER, ALSO KNOWN AS "JOHN TEK". YUS550 TOOK US MORE THAN 17 YEARS TO SUCCESSFULLY DEVELOP THIS HIGH-PERFORMANCE, HIGH -SAFETY, AND IT CAN COST DOWN 90% OF THE PRICE.

  • test01
    TEST 01
    SALT SPRAY TEST REPORT

    6,000-15,000 HRS MIN

  • test02
    TEST 02
    KESTERNICH TEST REPORT

    OVER 100 CYCLE
    MORE THAN 2,400 HRS

  • test03
    TEST 03
    HARDNESS TEST REPORT

    SURFACE HARDNESS:620-635 HV
    CORE HARDNESS:559-563 HV

SGS REPORT DOWNLOAD
 
COMPARISON CHART
 
01 METERIAL John Tek #550

Bi-Metal

C1022

02

SIZE

#10 #10 #10
03

TENSILE TEST

161.9 kgf/mm2 70.7 kgf/mm2 132.4 kgf/mm2
04 SALT SPRAY TEST REPORT 8,000-15,000
hours
ZINC+WAXING RUSPERT ZINC
24 HRS(5μ)
72 HRS(8μ)
240~1,000 HRS 24~48 HRS(5μ)
48~120 HRS(8μ)

MORE JOHN TEK 550 PRODUCT

CORPORATE WITH NIPPON STEEL FOR THE SPECIAL MATERIAL NSSC550 (YUS550),SPENDING 18 YEARS TO DEVELOP IT.

rOOFING SCREW

JOHN TEK 550

YOU DON'T NEED TO WORRY ABOUT CHANGING IT OFTENLY, WHEN USING NSSC550 ROOFING SCREW. IT CAN PREVENT THE RUST FOR OVER 250 YEARS.

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POWDER-ACTUATED PIN

JOHN TEK 550

TO MEET THE EXPECTATION OF THE CUSTOMERS,WE LEVEL UP SURFACE CORE TO HRC 51 AND HEART CORE TO 49.

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CONTACT US

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