亚洲AV永久无码精品_日夜啪啪一区二区三区_国产午夜成人无码免费看_中文字幕人妻无码一夲道

類別
Category

主要參數規格
Main parameter
specifications

常用技術標準
Common technical
standards

典型鋼種
Typical steel grades

用 途
Applications

臺階軸
Step shaft

Φ50～Φ520mm

GB/T3077, EN10083,
EN10084, JB/T6395

18CrNiMo7-6,17CrNiMo6, 20CrNiMo, 20CrNi2Mo, 20Cr2Ni4, 20CrMnMo, 20CrMnTi, 34CrNiMo6, 30CrNiMo8, 40CrNiMo, 35CrMo, 42CrMo, 38CrMoAl

港口機械, 海工機械的齒輪軸, 傳動軸等
Gear shafts, transmission shaft, etc. for port machinery and marine machinery

Φ100～Φ400mm

JB/T3733, JB/T4120,
JB/T6393

9Cr2Mo, 70Cr3Mo, MC3, MC5, etc.

冶金軋鋼機械的軋輥, 支承輥, 矯直輥
Rolls, supporting rolls and straightening rolls for metallurgic steel rolling machinery

Φ100～Φ400mm

Specific standard專用標準

AMS 6418

礦山機械的潛孔鉆頭
Down-the-hole drills for mining machinery

Φ50～Φ520mm

Specific standard專用標準

18CrNiMo7-6HH, 34CrNiMo6, 42CrMoS4

高鐵列車、軌道交通的電機轉軸等
Motor rotation shafts for high speed trains and rail transit

≤Φ (□) 450mm

API Spec 6A, 20B

AISI4130, 30CrNi2.5MoV

石油機械
Petroleum machinery