取向硅钢(GO Silicon Steel)

涟钢可供应普通取向硅钢热轧卷/酸洗卷/冷硬卷原料及高磁感取向硅钢热轧卷/常化酸洗卷/冷硬卷原料,主要牌号为LGQX-6和LGQX-1,可根据客户要求订制生产。产品表面、边部质量优良,冷硬卷厚度精度高,广泛应用于各类变压器、大型电机和电抗器等领域。

工艺流程图(Process Chart)

高炉(Blast furnace)
KR
BOF
RH
连铸板坯(CC Slab)
保温罩预留(Thermal insulation cover Reservation)
加热炉(Reheating furnace)
板坯出炉(Slab discharge)
粗轧除鳞箱(RM descaler)
带大立辊粗轧机(RM with edger)
热卷箱(Coil box)
切头飞剪(Flying shear)
粗轧除鳞机(RSB)
粗轧机立辊(Edger)
七机架精轧机(7-stand FM)
层流冷却(Laminar cooling)
地下卷取机(Down coiler)

交货状态及成品牌号(Delivery Status and Final Product Grade)

品种(Grade) 交货状态(Status of delivery) 牌号(Steel grades) 客户加工后牌号(Customer processed) 用途(Application)
普通取向硅钢(Common GO Silicon Steel) 热轧卷/酸洗卷/冷硬卷(Hot-rolled coil / Pickled coil / Cold rolled coil) LGQX-6 等(LGQX-6 etc) 23QH085、23QH090、23QH095、23QH100、27QH100、27QH105、27Q110、27Q120、30Q110、30Q120 应用于变压器、镇流器等(Can be used in transformer and ballast etc)
高磁感取向硅钢(High permeability GO Silicon Steel) 热轧卷/常化酸洗卷/冷硬卷(Hot rolled coil/normalized & picked coil/cold rolled coil) LGQX-1 等(LGQX-1 etc) 20QGH075、23QGH085、27QGH090、23QGH090、27QGH095、23QGH095、27QGH100、23QG100、23QG105、23QGH080、27QG105、27QG110 应用于变压器(Can be used in transformer)

注:a. 酸洗卷可选择切边或不切边交货。b. 客户加工后的牌号分布与其自身加工工艺相关。(Remark: a. Pickled coil can be side trimmed and untrimmed. b. Customer's grades after processing is related to its own process.)

交货标准(Delivery Standard)

交货状态(Status of delivery) 规格(mm)(Specification) 厚度公差(Thickness tolerance) 宽度公差(Width tolerance) 纵向厚差(Longitudinal thickness deviation) 横向厚差(Transveral thickness deviation)
热轧卷(Hot-rolled coil) (2.1~2.6) × (1035~1320) GB/T709-2019 GB/T709-2019 GB/T709-2019 GB/T709-2019
酸洗卷(Pickled coil) (2.1~2.6)×(1030~1286) GB/T709-2019 0~+3mm 或按客户协议宽度要求(0~+3mm or in accordance with customer width requirement) GB/T709-2019 GB/T709-2019
普通取向硅钢冷硬卷(Cold rolled common GO silicon steel) (0.5~0.65)×(1025~1286) 根据客户协议要求(According to customer agreement) 0~+3mm 或按客户协议宽度要求(0~+3mm or in accordance with customer width requirement) ±0.020mm 或客户协议要求(±0.020mm or customer requirement) ≤0.015mm 或客户协议要求(≤0.015mm or customer requirement)
高磁感取向硅钢冷硬卷(High induction GO silicon steel) (0.18-0.35)×(1000-1250) 根据客户协议要求(According to customer agreement) 0~+3mm 或按客户协议宽度要求(0~+3mm or in accordance with customer width requirement) ±0.010mm 或客户协议要求(±0.010mm or customer requirement) ≤0.007mm 或客户协议要求(≤0.007mm or customer requirement)

备注:其它尺寸、外形、重量及允许偏差按GB/T709-2019执行。(Remark: Size, shape, weight and tolerance are controlled in accordance with GB/T709-2019.)

螺纹钢(Rebar)

涟钢螺纹钢品牌“双菱”深耕湘中娄底,产品传承城市文化,广泛应用于国内外重点工程。如武广高铁、沪昆高铁、湘西矮寨大桥、长江葛洲坝水利工程(大坝主体结构钢筋全部采用涟钢产品)、长江三峡水利工程、广州地铁工程、广州火车东站广场、深圳国贸大厦、黄河小浪底水利工程、首都国际机场等。

重点应用案例(Key Application Cases)

  • ∮36、∮40等大规格螺纹钢供应新建川藏铁路(∮36, ∮40 and other big size rebar are supplied to the new Sichuan-Tibet railway)
  • HRB600规模化应用于长沙轨道交通7号线全线、1号线北延线、2号线西延线及武汉华星光电厂房项目(HRB600 is used in Changsha Rail Transit Line 7, Line 1 North Extension, Line 2 West Extension and Wuhan Huaxing Photoelectric Plant Project on a large scale)
  • HRB500E批量供货长沙机场改扩建工程项目(Batch supply of HRB500E to Changsha Airport reconstruction and expansion project)
  • HRB500E供应浏阳惠科第8.6代超高清新型显示器件生产线项目(国内首条大尺寸OLED项目)(HRB500E is supplied to Liuyang HKC 8.6th Generation UHD New Display Device Production Line Project, the first large-size OLED project in China)
  • 螺纹钢应用于洞庭湖大桥(Applied to Dongting Lake Bridge)
  • 核电专用HRB500E供应海南昌江核电站二期工程3#机组核岛子项筏基项目(HRB500E for nuclear power is supplied to Unit 3 Raft Foundation Project of Hainan Changjiang Nuclear Power Station Phase II)

成分和碳当量要求(Chemistry and Carbon Equivalent Requirements)

钢筋牌号(Steel bar grade) 标准(Standard) C(%) Si(%) Mn(%) P(%) S(%) Ceq(%)
HRB400E 国标(National standard) ≤0.25 ≤0.80 ≤1.60 ≤0.045 ≤0.045 ≤0.54
HRB500E 国标(National standard) ≤0.25 ≤0.80 ≤1.60 ≤0.045 ≤0.045 ≤0.55
HRB600 国标(National standard) ≤0.28 ≤0.80 ≤1.60 ≤0.045 ≤0.045 ≤0.58

力学性能要求(Mechanical Property Requirements)

钢种(Grade) 规格(mm)(Dimension) 标准(Standard) Rel(MPa) Rm(MPa) A(%) Agt(%) R0m/R0el R0el/Rel 弯芯(反弯)直径(mm)(Bending core diameter)
HRB400E ∮12~25 国标 400~520 ≥540 ≥16 ≥9.0 ≥1.25 ≤1.30 5d
∮12~25 内控 420~520 ≥555 ≥16 ≥9.0 ≥1.25 ≤1.30 5d
∮28~40 国标 400~520 ≥540 ≥15 ≥9.0 ≥1.25 ≤1.30 6d
HRB500E ∮12~25 国标 500~650 ≥630 ≥15 ≥9.0 ≥1.25 ≤1.30 7d
∮28~40 国标 500~650 ≥630 ≥14 ≥9.0 ≥1.25 ≤1.30 8d
HRB600 ∮12~25 国标 ≥600 ≥730 ≥14 ≥7.5 ≥1.25 ≤1.30 7d
∮28~32 国标 ≥600 ≥730 ≥13 ≥7.5 ≥1.25 ≤1.30 8d

核电钢筋和耐大气腐蚀螺纹钢性能(Property of Nuclear Power Rebar and Weather-Resistant Rebar)

钢筋牌号(Steel bar grade) 规格(mm)(Dimension) 标准(Standard) Rel(MPa) Rm(MPa) A(%) Agt(%) R0m/R0el R0el/Rel 弯芯(反弯)直径(mm) 备注(Remarks)
HRB400E(核电用) ∮12~25 国标 400~520 ≥540 ≥16 ≥9.0 ≥1.25 ≤1.30 5d 核电钢筋
∮12~25 内控 430~520 ≥565 ≥16 ≥9.0 ≥1.25 ≤1.30 5d 核电钢筋
∮28~40 国标 400~520 ≥540 ≥15 ≥9.0 ≥1.25 ≤1.30 6d 核电钢筋
HRB400aE(耐大气腐蚀) ∮12~25 国标 400~520 ≥540 ≥16 ≥9.0 ≥1.25 ≤1.30 5d 耐大气腐蚀
∮28~40 国标 400~520 ≥540 ≥15 ≥9.0 ≥1.25 ≤1.30 6d 耐大气腐蚀

订货指南(Order Handbook)

客户订货时需提供以下信息,以便涟钢精准对接需求,确保产品符合预期:

  • 产品名称(钢板/钢带)(Product: sheet/strip)
  • 产品标准号(Standard number of product)
  • 产品牌号(Steel grade)
  • 产品规格及尺寸精度(包括厚度、宽度、长度)(Specification and size precision: thickness, width, length)
  • 边部状态(Edge condition)
  • 表面质量等级(Surface quality grading)
  • 不平度精度(Unflatness accuracy)
  • 表面涂油量(Surface oiling quantity)
  • 镀层产品需提供涂层种类、镀层重量及表面处理(Coating type, coating weight and surface processing for coating product)
  • 重量(钢卷/盒板重量、最大外径、内径)(Weight: coil/SPCC-A weight, Max. outer diameter, inner diameter)
  • 包装方式(Packaging)
  • 用途(Application)