ISO9001 2008 Verified machinery hydraulic pipe ID30-250mm Precision Cold drawn steel
USD $0.98 - $1.7 /Metric Ton
Min.Order:5 Metric Tons
Yantai Xinpeng Steel Pipe Co., Ltd.
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ISO9001 2008 Verified machinery hydraulic pipe ID30-250mm Precision Cold drawn steel
Specification:Cylinder ID:40mm-400mm
Thickness: above 4mm
Material :20#,45#(CK45),16Mn(ST52),25Mn,27SiMn
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 | 320-400 | 8M | 0.2-0.3 | H7-H9 | ±8% | ≤0.8 |
Deep-rolling | 320-400 | 7M | 0.2-0.3 | H8-H9 | ±8% | ≤0.4 |
( Mechanical property) :
Final Supply Condition | Cold finished (Hard)(BK) | Cold drawn and stress-relieved (BK+S) | Hardness HB | |||
Parameters | T.S obN/mm 2 | Elongation δ5% | T.S obN/mm 2 | Y.S OsN/mm 2 | Elongation δ5% | |
20# | ≥550 | ≥8 | ≥520 | ≥470 | ≥12 | 175 |
45#(CK45) | ≥650 | ≥5 | ≥600 | ≥520 | ≥12 | 207 |
16Mn(ST52) | ≥640 | ≥5 | ≥600 | ≥520 | ≥15 | 190 |
25Mn | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 | 195 |
27SiMn | ≥840 | ≥5 | ≥800 | ≥720 | ≥10 | 230 |
(Tolerance on ID)GB1808-99:
ID Min. | (Tolerance on OD)μm | |||
H7 | H8 | H9 | H10 | |
30 | +21 0 | +33 0 | +52 0 | +84 0 |
>30-50 | +25 0 | +39 0 | +62 0 | +100 0 |
>50-80 | +30 0 | +46 0 | +74 0 | +120 0 |
>80-120 | + 35 0 | + 54 0 | +87 0 | +140 0 |
>120-180 | +40 0 | +63 0 | +100 0 | +160 0 |
>180-250 | +46 0 | +72 0 | +115 0 | +185 0 |
>250-315 | +52 0 | +81 0 | +140 0 | +210 0 |
>315-400 | +57 0 | +89 0 | +170 0 | +230 0 |
Finished products
RFQ:
Q1.What do you want to purchase ?
What we can offer are cold drawn/cold rolled steel pipes, cold drawn honing pipes,cold drawn
welded tubes(DOM tubes) ,seamless steel pipe etc.Wide Scope and Top Quality !
Q2.Do you have the target price ?
Generally ,we have the target price when we buy something ,which is good for both supplier and
customer ,at the same time ,the target price should be objective ,reflecting the market.
Q3.What factors have an effect on the price ?
1 The market. our price rise and fall accompany with the market
2 The material and the grade .Different materials sometimes mean hundreds dollars.
3 The sizes. generally ,the thinner is more expensive because of the manufacture difficulty
Any further Question, please feel free to contact us!