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 |