Business

There are two kinds of heat treatment service shown as follows:　
A. Case Hardening
B. Neutral Hardening
　滲碳熱處理 Case Harden調質熱處理 Neutral Hardening
材質
Material		低碳Low Carbon Steel 1008/1018/1022
硼鋼Boron Steel
10B21/10B22　		中碳 Medium carbon 1035/1040/1045
硼鋼 Boron steel 10B21/10B22/10B33
合金 Alloy 4135/4140/35ACR/40ACR    
SCM435/SCM440/SCR435
種類
Type		螺絲及各式五金
Screws & Fasteners		螺絲及各式五金
Screws & Fasteners
尺寸
Size		牙外徑：Tooth outer diameter
#4 ~ 3/8″
長  度：Length：1/8″ ~ 6″		牙外徑：Tooth outer diameter
#6(M3.5) ~ 1″(M25)
長  度：Length：1/4″ ~ 6″
等級
Class/Grade		 N/ASAE： 5、5.1、5.2、8、8.1、8.2 class
ISO/DIN：8.8/9.8/10.9/12.9 class
規範
Spec.		SAE J933/J78/J81/J1237
DIN 7504/7500/
267-12
ISO 2702/7085/10666
FIP 1000
JIS B1055		ISO 898-1:2009
DIN 267
SAE J429