Seamless Tubes

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I.D: 30mm-400mm
O.D: 40mm-480mm
Length:: Fixed length, Random length or as requests of customers
Fob Price: Discuss personally 
Port: Tianjin Qingdao Shanghai
Supply Ability: 20000
Payment Terms: delivery withindays since payment
Location: China Shandong
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Product Detail

Brand:Carbon Steel Seamless Tubes En10305-1 E355/E355 SR

Description:Standard: DIN2391 EN10305 ASTM A519 Material:C20 CK45 E355 ST52 SAE1026 4130 4140 STKM 13C Size:I.D:30mm-400mm; O.D:40mm-480mm Length:Fixed length, Random length or as requests of customers Application: Hydraulic cylinder, Engineering machinery, Metallurgical machinery, Plastic machinery, Hoisting machinery, Road construction machinery, Textile machinery

Origin:China

Model:Carbon Steel Seamless Tubes En10305-1 E355/E355 SR

MOQ:1000Kilogram/Kilograms

FOB:perKilogram/Kilograms721--950

Port:Tianjin Qingdao Shanghai

Payment Terms:T/T

Supply Ablility:20000Kilogram/Kilograms

Supply Time:Day

Packaging Details:standard export package

Product detail: 

Chemical Composition:
Steel grade Chemical composition,%
C Si Mn P S Cr Ni V Al
≤ ≥
C20 0.17-0.24 0.17-0.37 0.35-0.65 0.035 0.035 0.250 0.250 / /
CK45 0.42-0.5 0.17-0.37 0.5-0.8 0.025 0.020 0.250 0.300 / /
Q345B ≤0.2 ≤0.5 1.00-1.60 0.030 0.030 0.030 0.250 0.080 /
Q345D ≤0.2 ≤0.5 1.00-1.60 0.030 0.030 0.250 0.250 0.150 0.015
E355(ST52) ≤0.22 ≤0.55 ≤1.6 0.025 0.025 0.250 0.250 / /
SAE1026 0.22-0.28 0.15-0.35 0.6-0.9 0.040 0.050 / / / /
4130 0.28-0.33 0.15-0.35 0.40-0.60 0.040 0.040 0.80-1.10 / / /
4140 0.36-0.43 0.15-0.35 0.75-1.00 0.040 0.040 0.80-1.10 / / /

 

Mechanical Property:
Delivery condition cold finished(hard)(BK) Cold drawn and stress-relieved(BK+S)
Steel grade Rm MPa Elongation    A5(%) Rm MPa ReH MPa Elongation    A5(%)
C20 ≥550 ≥5 ≥520 ≥375 ≥15
CK45 ≥645 ≥5 ≥600 ≥520 ≥10
Q345B ≥640 ≥5 ≥600 ≥520 ≥14
Q345D ≥640 ≥5 ≥600 ≥520 ≥14
E355(ST52) ≥640 ≥5 ≥600 ≥520 ≥14
SAE1026 ≥640 ≥5 ≥600 ≥520 ≥15

 

Tolerance:
Tolerance I.D Tolerance Tolerance of wall thickness
Size of I.D H8 H9 H10
30 0.033 0.052 0.084    <120mm(O.D)          ±5%                         ≥120mm up to 210mm      ±7.5%               >210mm                   ±10%
>30-50 0.039 0.062 0.1
>50-80 0.046 0.074 0.12
>80-120 0.054 0.087 0.14
>120-180 0.063 0.1 0.16
>180-250 0.072 0.115 0.185
>250-315 0.081 0.13 0.21
>315-400 0.089 0.14 0.23

 

Processing form:
Processing form I.D mm Length Straightness I.D tolerance I.D Roughness  (RA)
Honed 40-500 ≤12M 0.5-1/1000 H8-H9 0.4-0.8μm
SRB 50-250 ≤9M H8 0.1-0.4μm

 
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