| Place of Origin: | China (Mainland) |
|---|---|
| Brand Name: | HENGOTNG |
| Type: | Pipe |
| Section Shape: | Round |
| Surface: | Can be oiled, galvanized |
| Secondary Or Not: | Non-secondary |
| Application: | Hydraulic Pipe |
Quick Details
Specifications
1. Chemical composition:
2.Mechanical Property:
3.Tube Accuracy:
|
Material |
C |
Si |
Mn |
S(≤) |
P(≤) |
Cr |
Ni |
Mo |
other |
|
C20# |
0.17-0.23 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
≤0.25 |
≤0.30 |
Cu≤0.25 |
|
|
CK45# |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
≤0.25 |
≤0.30 |
Cu≤0.25 |
|
|
Q345B |
≤0.20 |
≤0.55 |
1.00-1.60 |
0.040 |
0.040 |
V:0.02-0.15 |
Nb:0.015-0.06 |
Ti:0.02-0.20 |
Alt≥0.015 |
|
ST52 E355 16Mn |
≤0.20 |
≤0.55 |
1.00-1.60 |
0.045 |
0.045 |
V:0.02-0.15 |
Nb:0.015-0.06 |
Ti:0.02-0.20 |
16Mn |
|
25Mn |
0.22-0.30 |
0.70-1.00 |
0.035 |
0.035 |
≤0.25 |
≤0.25 |
|||
|
27SiMn |
0.24-0.32 |
1.10-1.40 |
0.030 |
0.030 |
|||||
|
42SiMn |
0.39-0.45 |
1.10-1.40 |
1.10-1.40 |
0.030 |
0.030 |
||||
|
42CrMo |
0.38-0.45 |
0.17-0.37 |
0.50-0.80 |
0.025 |
0.025 |
0.90-1.20 |
0.15-0.25 |
2.Mechanical Property:
|
Final Supply Condition |
Cold finished (Hard) (BK) |
Cold drawn and stress -relieved (BK+S) |
Hardness HB |
|||
|
Parameters |
Tensile Strength (MPA) |
Elongation δ% |
Tensile Strength (MPA) |
Yield Strength (MPA) |
Elongation δ% |
|
|
20#(A106) |
≥550 |
≧8 |
≧520 |
≧470 |
≧12 |
175 |
|
45#(CK45) |
≥650 |
≧5 |
≧600 |
≧520 |
≧12 |
207 |
|
16Mn(ST52, E355) |
≥640 |
≧5 |
≧600 |
≧520 |
≧15 |
190 |
|
25Mn |
≥640 |
≧5 |
≧600 |
≧510 |
≧15 |
195 |
|
27SiMn |
≥840 |
≧5 |
≧800 |
≧720 |
≧10 |
230 |
3.Tube Accuracy:
|
Working method |
Cylinder ID(mm) |
Length(m) |
Straightness(mm/m) |
Tolerance on ID |
Tolerance on WT |
Roughness(μm) |
|
Cold drawn |
40-320 |
≤12M |
0.2-0.5 |
/ |
±5% |
0.8-1.6 |
|
Cold rolling |
30-100 |
≥12M |
0.2-0.5 |
/ |
±5% |
0.8-1.2 |
|
Cold drawn-honed |
40-500 |
8M |
0.2-0.3 |
H8-H9 |
±5% |
0.2-0.8 |
|
Cold drawn-roll |
40-400 |
7M |
0.2-0.3 |
H8-H9 |
±5% |
≤0.4 |
|
Deep hole boring-honed |
320-400 |
8M |
0.2-0.3 |
H8-H9 |
±8% |
≤0.8 |
|
Deep hole boring-roll |
320-400 |
7M |
0.2-0.3 |
H8-H9 |
±8% |
≤0.4 |