MIld seamless Gb8162 standard chinese grade 20 steel pipe
USD $1,100 - $1,500 /Metric Ton
Min.Order:10 Metric Tons
Yantai Xinpeng Steel Pipe Co., Ltd.
Product Name: MIld seamless Gb8162 standard chinese grade 20 steel pipe
1.Grade:20#,45#,Q345D,STKM13C-T(25Mn)
2.OD:30mm-250mm Hydraulic cylinder Cold Drawn honed tube Best reputation New Supplier
3.Technique:Cold drawn honed tubes
4.Suitable for hydraulic cylinder tubes,honing or skiving and roller burnishing cylinder tubes
Dimensions tolerance
Grade | OD(mm) | ID (mm) | Tolerance | ||||
OD (mm) | ID (mm) | Wall thickness deviation (mm) | Ovality (mm) | Curvature(mm/m) | |||
45# | 40-74 | 30-65 | ±.01 | -0.3,-0.5 | ≤0.5 | ≤0.1 | 0.3 |
74-98 | 65-85 | ±.01 | -0.4,-0.6 | ≤0.5 | ≤0.15 | 0.3 | |
100-116 | 85-100 | ±.02 | -0.4,-0.6 | ≤0.6 | ≤0.15 | 0.3 | |
124-134 | 110-115 | ±.02 | -0.6,-0.8 | ≤0.6 | ≤0.20 | 0.3 | |
140-158 | 120-135 | ±.02 | -0.7,-0.9 | ≤0.8 | ≤0.20 | 0.3 | |
165-176 | 140-150 | ±.02 | -0.7,-0.9 | ≤0.8 | ≤0.20 | 0.3 | |
188-203 | 160-180 | ±.02 | -0.7,-0.9 Honed | ≤0.8 | ≤0.20 | 0.3 |
Mechanical properties
Delivey conditions:
Chemical composition of Material:
Steel grade | Chemical composition,% | |||||
C | Si | Mn | P | S | Cr | |
≤ | ||||||
20# | 0.17-0.24 | 0.17-0.37 | 0.35-0.65 | 0.035 | 0.035 | 0.25 |
16Mn | ≤0.2 | ≤0.5 | 1.00-1.60 | 0.03 | 0/03 | 0.25 |
ST52(E355) | ≤0.22 | ≤0.55 | ≤1.6 | 0.025 | 0.025 | 0.25 |
SAE1026 | 0.22-0.28 | 0.15-0.35 | 0.6-0.9 | 0.04 | 0.05 | / |
Mechanical Property of Material:
Delivery condition | cold finished(hard)(BK) | Cold drawn and stress-relieved(BK+S) | |||
Steel grade | Rm MPa | Elongation A5(%) | Rm MPa | ReH MPa | Elonggation A5(%) |
20# | ≥550 | ≥8 | ≥520 | ≥375 | ≥15 |
16Mn | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
ST52 | ≥640 | ≥5 | ≥600 | ≥520 | ≥14 |
SAE1026 | ≥640 | ≥5 | ≥600 | ≥510 | ≥12 |
Main Production Progress:
Raw material | → | Cold drawn | → | Heat treatment BK+S | → | Honed & SRB | → | Packing |
Finished products
PROCESS
Some Dimension:
OD x WT | OD x WT | OD x WT | OD x WT |
48*31.75 | 98*80 | 154*130 | 45*35 |
45*30 | 100*85 | 137*115 | 35*25 |
25*19 | 121*100 | 94*80 | 125*100 |
50*40 | 120*100 | 90*80 | 90*70 |
40*30 | 140*120 | 80*70 | 100*70 |
65*50 | 123*105 | 111*95 | 120*100 |
70*57 | 146*125 | 50.5*44.5 | 31*25 |
48*40 | 165*140 | 158*135 | 76*55 |
58*50 | 176*150 | 160*135 | 77*57 |
60*50 | 194*160 | 149*125 | 77*59 |
70*50 | 30*25 | 42.5*31 | Other size can work |
95*80 | 128*110 | 190*160 |
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