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St52 BK / BKS Hydraulic Cylinder Steel Tube H7 - H10 ID Tolerance DIN 2391 Model

St52 BK / BKS Hydraulic Cylinder Steel Tube H7 - H10 ID Tolerance DIN 2391 Model

Brand Name:New Era
Certification:ISO9001,TS16949
Model Number:DIN2391
Minimum Order Quantity:5 tons
Delivery Time:45 days
Payment Terms:T/T
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Product Details

Product Name: DIN2391 St52 BK / BKS Seamless Round Honed Steel Tube for Hydraulic Cylinder

Size Range: OD: 40-500mm, WT: 1-30mm, Length: 5.8m/6m, maximal 11.8m


Product NameDIN2391 St52 BK/BKS Hydraulic Cylinder Pipe Honed Steel Tube
MaterialSt35, St45, St52
Delivery ConditionBK, BKS
StandardDIN2391
Size RangeOD: 40-500mm, WT: 1-30mm
ApplicationHigh precision purpose, auto parts, oil cylinder, etc
Round BilletBao Steel, Xingcheng Steel, Zhongtian Steel
KeywordHoning Steel Tube
CertificateTS16949, ISO 9001
HS code7304319000
Delivery Time45 days
PakcingBundles or Woodern Boxes

Processing Range And Precision:

Cold Drawn Tubes:

ID:45mm-630mm

Length:14,000mm

Straightness:0.3-1.0

Precision:H8-H10

Roughness:Ra0.8-Ra1.6

Honing Tubes:

ID:25mm-500mm

Length:10,000mm

Straightness:0.3

Precision:H7-H8

Roughness:Ra0.2-Ra0.8


ID Tolerance of Precision Honed Tubes:

SIZE of I.DI.D.ToleranceTolerance of wall thickness
H8H9H10
30+0.0330+0.0520+0.0840

<120mm(O.D) ±5%

≥120mm(D.D) to 210mm ±7.5%

>210mm ±10%

>30-50+0.0390+0.0620+0.1000
>50-80+0.0460+0.0740+0.1200
>80-120+0.0540+0.0870+0.1400
>120-180+0.0630+0.1000+0.1600
>180-250+0.0720+0.1150+0.185
>250-315+0.0810+0.1300+0.2100
>315-400+0.0890+0.1400+0.2300

Mechanical Propety:

Material: 20# 45#,16Mn St45, St52, 25Mn,27SiMn, SAE1026.SAE1518 etc.

STANDARD: GB/T8713 GB/T3639 DIN2391 EN10305 ASTM A519


Delivery conditioncold finished(hard)(BK)cold drawn and stress relieved(BK+S)
STEEL GRADERm MPaElongation (%)Rm MPaReH MPaElongation (%)
20#≥550≥ 8≥ 520≥ 375≥ 15
45#≥ 640≥ 5≥ 600≥ 520≥ 10
16Mn≥ 640≥ 5≥ 600≥ 520≥ 14
25Mn≥ 640≥ 5≥ 600≥ 510≥ 15
27SIMn≥ 800≥ 5≥ 760≥ 610≥ 10
ST45≥ 550≥ 5≥ 520≥ 375≥ 15
E355(ST52)≥ 640≥ 5≥ 600≥ 520≥ 14
SAE1026≥ 640≥ 5≥ 600≥ 510≥ 15

China St52 BK / BKS Hydraulic Cylinder Steel Tube H7 - H10 ID Tolerance DIN 2391 Model supplier

St52 BK / BKS Hydraulic Cylinder Steel Tube H7 - H10 ID Tolerance DIN 2391 Model

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