国产三级视频在线观看视主播_欧洲亚洲国产视频_国产视频精品免费视频国产日韩欧美一区二区_欧美激情热在线视频_91丨九色丨蝌蚪丰满_亚洲jingpin在线中文_一级日本午夜福利电影_亚洲精品自产拍在线_国产成人精品日本亚洲77首页_18禁止观看网站A级毛片自慰

Rolled Bar
1. Introduction

This big alloy steel  bar mill was put into production in October, 2014. Its product focuses on offering middle sized high-end special steel for automobile, engineering, equipment, and shipbuilding and etc.

 
2. Specifications
 
specifications delivery condition steel  category
Round bar ∮80～350 Rolled/Annealing/QT High quality carbon steel/ alloy tool steel/carbon tool steel/pipeline steel
∮80～200 Rolled/Annealing Bearing steel
Square and flat bar 150～280×150～280 Rolled/Annealing High quality alloy steel/ alloy tool steel/carbon tool steel
 
3. Process Flow

4. Product Standards
 
Category Grade Different Material Standards Specification（mm） Production standards
ASTM/SAE/AISI JIS DIN
High quality carbon steel 20～45 1020, 1045 S20C, S45C C22, C22E, CK22, C45, C45E, CK45 ∮80～350
150～280×150～280		 GB, ASTM, JIS, DIN or customer specified requirements
Alloy steel 40Mn2, 40Cr 42CrMoA 4140 SCr440, SCM440 42CrMo4 ∮80～350
150～280×150～280		 GB, ASTM, JIS,DIN or customer specified requirements
Gear steel 40CrH, 20CrMnTi,  20CrMoH, 20CrNiMoH 4120H, 8620H SCr440H, SCM420H, SCM822H 16CrNi4, 19CN5, 16～28MnCr5 ∮80～350
150～280×150～280		 GB, ASTM, JIS, DIN or customer specified requirements
Non-QT steel F48MnV, F40MnVS,  12Mn2VB, C38N2       ∮80～350
150～280×150～280		 GB, ASTM, JIS, DIN or customer specified requirements
Bearing steel GCr15, GCr15SiMn, GCr18Mo 52100 SUJ2, SUJ3,  SUJ4 100Cr, 100CrMo6 ∮80～200 GB or customer specified requirements
Spring steel 60Si2CrVA, 60Si2MnA and etc. 9260H SUP6 60SiCr7 ∮80～350
150～280×150～280		 GB or customer specified requirements
Pipeline steel 37Mn5, L290, 29Mn2, 12Cr1MoVG, P91, P92       ∮80～350 GB or customer specified requirements
Alloy tool steel 5CrMnMo, 5CrNiMo, 4Cr5MoSiV1 and etc. L6, H13 SKT4 40CrMnMo7, 55NiCrMoV6, X40CrMoV51 ∮80～350
150～280×150～280		 GB or customer specified requirements
 
5. Product Quality Level
 
Category Grade Chemical component Non-metallic Inclusion Hardenability
HRC
    P≤
(%)		 S≤
(%)		 [O] ≤
(ppm)		 A
thin≤		 A
heavy≤		 B
thin≤		 B
heavy≤		 C
thin≤		 C
heavy≤		 D
thin≤		 D
heavy≤		 Ds≤
Carbon steel SAE1045, S45C, CK45, 45 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0    
Alloy steel 42CrMo, 40Cr 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0 1.5  
Pipeline steel 37Mn5, L290, 29Mn2, 12Cr1MoVg 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0    
Gear steel 20CrMoH, 20CrMnTiH, 20CrNiMoH 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0   ≤6
SCM420H, SCM822H 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0   ≤6
Spring steel 60Si2CrVA 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0    
Bearing steel GCr15 0.015 0.005 10 1.0 0.5 1.0 0.5 0 0 1.0 0.5 1.0