首页 | 公司简介 | 企业理念 | 冷轧精密无缝钢管 | 直缝电焊钢管 | 公司地图 | 联系方式 | 在线留言
今天:
 
 
 
 
·冷轧精密无缝钢管
Cold Rolled Precision Seamlesss Steel Pipe
·直缝电焊钢管
Longitudinal Electric Resistance Welded Steel Tube
 
1、执行标准:
  GB/T 3639-2000  冷拔或冷轧精密无缝钢管
  DIN2391 冷拔或冷轧精密无缝钢管
  EN10305-1 无缝冷拔管
  EN10305-2 焊接冷拔管
  ASTM A519 机械用无缝碳钢管、合金钢管
  ASTM A513 TYPE 5 焊接碳钢与合金钢机械管(DOM)
  也可根据用客户要求订制各种特殊要求的产品。
  Standard of implementation:
  GB/T 3639-2000 Cold drawn or cold rolled precision seamless steel pipe
  DIN2391 Cold drawn or cold rolled precision seamless steel pipe
  EN10305-1 Seamless cold drawn steel pipe
  EN10305-2 Welded cold drawn steel pipe
  ASTM A519 Seamless carbon and alloy steel mechanical tubing
  ASTM A513 TYPE5 Electric-resistance-welded carbon and alloy steel mechanical tubing(DOM)
  Can also produce a variety of special requirement products according to the requirements of customers.

2、常用牌号化学成份、机械性能 Chemical composition, mechanical properties of common grades

  精密钢管常用牌号化学成份Chemical composition(%) of precision pipe’s common grades

标准 Standard

牌号Grade

化学成份% Chemical composition(%)

C

Si

Mn

S

P

Cr

GB/T699
GB/T3639
GB3077
GB/T1591

10#

0.07~0.13

0.17~0.37

0.35~0.65

≤0.035

≤0.035

 

20#

0.17~0.23

0.17~0.37

0.35~0.65

≤0.035

≤0.035

 

35#

0.32~0.39

0.17~0.37

0.35~0.65

≤0.035

≤0.035

 

45#

0.42~0.50

0.17~0.37

0.50~0.80

≤0.035

≤0.035

 

40cr

0.37~0.44

0.17~0.37

0.50~0.80

≤0.035

≤0.035

0.08~1.10

25Mn

0.22~0.29

0.17~0.37

0.70~1.00

≤0.035

≤0.035

≤0.25

Q345B

≤0.20

≤0.50

≤1.7

≤0.035

≤0.035

≤0.30

37Mn5

0.30~0.39

0.15~0.30

1.20~1.50

≤0.015

≤0.020

 

  精密钢管常规机械性能 Conventional mechanical properties of precision pipe


标准 Standard

牌号Grade

交货状态 Delivery Conditions

冷加工/硬BK

冷加工/软BKW

抗拉强度Tensile stengthσb(MPa)

断后 伸长率 Make percentage elongationδ5(%)

抗拉强度Tensile stengthσb(MPa)

断后 伸长率Make prcentage elongationδ5(%)

GB/T3639
GB3077

10#

≥410

≥6

≥375

≥10

20#

≥510

≥5

≥450

≥8

35#

≥590

≥4

≥550

≥6

45#

≥645

≥4

≥630

≥5

40cr

≥784

≥12

 

 

37Mn5

≥784

≥12

 

 

3、常用规格尺寸公差 Dimensional tolerances of common specifications

  精密钢管常用规格尺寸公差对照表Dimensional tolerances of precision pipe’s common specifications table

规格

尺寸Dimension

GB3639-2000

企业标准 Enterprise standard

外径 OD

15~30mm

±0.10mm

±0.05mm

31~40mm

±0.15mm

±0.05mm

41~50mm

±0.20mm

±0.08mm

51~60mm

±0.25mm

±0.08mm

61~70mm

±0.30mm

±0.10mm

71~80 mm

±0.35 mm

±0.10mm

81~90 mm

±0.40 mm

±0.12mm

91~100 mm

±0.45 mm

±0.15mm

101~120 mm

±0.50 mm

±0.15mm

121~210 mm

±0.65 mm

±0.20mm

壁厚Wall thickness

0~13mm

±10% (最小值min±0.12mm)

±8%

*特殊要求根据顾客的技术协议执行。Implement special requirements in accordance with customers’ technology agreement.

4、生产能力与范围 Capacity and scope of production

5、生产工艺流程图Manufacturing Process Flow Diagram

6、产品优势 Product’s advantage
★高表面光洁度,高尺寸精度,高直线度。High surface finish, high dimensional accuracy, high straightness

7、应用领域 Applications





 ◆ 大型工程机械用液压油缸Hydraulic cylinder used in large-scale engineering machinery
 ◆ 机械设备用气动及液压缸体Pneumatic and hydraulic cylinder used in machinery equipment
 ◆ 大口径钛合金钢管 Large-diameter titanium alloy pipe
 ◆ 铝箔用钢管芯Pipe core used in aluminum foil
 ◆ 电机外壳 Motor shell
 ◆ 汽车及精密机械产品用管 Automotive and precision machinery

联系人:蒋晓军(总经理) 邮件:jxjmail@188.com 电话:0512-58781758 网址:www.zjghc.com
传真:0512-56930727 地址:张家港市金港镇镇山东路张家港村工业园