J4 is 50% stronger than 304 as well as 430! J4 also exhibits superior wear and abrasion resistance than 304/430. The main difference between J4 & 304 is the difference in their chemistries, especially the percentage of Ni. 304 contains a minimum of 8% Ni and J4 has a minimum of only 1% Ni. The chromium content is also slightly lower, but as seen from the PRE, this is compensated to a large extent by increased nitrogen.
AUS(J1) is a low nickel chrome-manganese austenitic stainless steel. Modest amount of nitrogen added to this steel results in higher annealed strength than AISI-304. However, copper addition reduces work hardening rate to facilitate cold working/forming. J1 is relatively economical compared to AISI- 304 having formability and weldability comparable to 304 with corrosion resistance superior to 430.
J3 Stainless Steel is an identical products invented bu Yaoyi several years ago. J series stands for “jiechu” which means "the most excellent" in English. J3 provide relative high elongation (8%) under 1500N/mm2 tensile strength. We have been cooperated with several international Energy Pipeline companies
The companys products in the stretch plasticity, hardness accuracy, hard state non-magnetic, high strength and quality of service has a greater advantage. (SUS201, SUS202, SUS301, SUS302, SUS304, SUS305, SUS316, SUS316L, SUS305,) special materials are non-magnetic stainless steel (SUS201, SUS202, SUS301, SUS302, SUS304, SUS305, SUS316, SUS316L, SUS305,) special material with or without magnetic stainless steel Belt, high tensile stainless steel strip, high strength stainless steel belt, high manganese non - magnetic materials, high elastic stainless steel belt.
