16mn 25mn 20# 45# Hydraulic Cylinder Tube Steel Tubing Cold Drawn Oiled Surface
TORICH GB/T3639-2009 EN10305-1 2002 Steel Tubing for Cylinders Hydraulic Pipes
Standard : GB/T3639, GB/T8713, EN10305-1:2002, EN10305-2:2002,
ASTM A519-2006, ASTM A513-2007, GB/T1591-2008, GB/T17396-2009
Material: 20#, 45#, Q345B, Q345D, 25Mn, 27SiMn, E355
| Hydraulic and pneumatic cylnder tube standard/size/tolerance | ||||||||||
Working method |
(mm) | Length (m) | Straightness (mm/m) | Tolerance on ID | Tolerance on WT |
(um) | ||||
| Cold Draw | 40-400 | ≤12m | 0.2-0.5 | / | ±5% | ≤1.6 | ||||
| Cold Rolled | 40-150 | ≤12m | 0.2-0.5 | / | ±5% | ≤0.8 | ||||
| Cold Draw-Honed | 40-400 | ≤8m | 0.2-0.3 | H8-H9 | ±5% | ≤0.4 | ||||
| Cold Draw-Rolling | 50-300 | ≤8m | 0.2-0.3 | H8-H9 | ±5% | ≤0.4 | ||||
| Deep hole boring-Roing | 250-400 | ≤8m | 0.2-0.3 | H8-H9 | ±8% | ≤0.8 | ||||
| Deep hole boring-Honed Roing | 250-400 | ≤8m | 0.2-0.3 | H8-H9 | ±8% | ≤0.4 | ||||
| Mechancial property | |||||||||
| Final supply condition
Steel grade | Cold finished(hard)(BK) | (Cold drawn and stress-relieved(BK+S) | |||||||
| T.S bN/mm2 | Elogation 5% | T.S bN/mm2 | Y.S Bn/mm2 | Elogation 5% | Hardness HB | Impact value(-20℃)J | |||
| 20 | ≥550 | ≥8 | ≥520 | ≥400 | ≥15 | 170 | / | ||
| 45 | ≥680 | ≥5 | ≥630 | ≥520 | ≥12 | 190 | / | ||
| Q345B | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | / | ||
| Q345D | ≥660 | ≥8 | ≥620 | ≥520 | ≥15 | 190 | ≥27 | ||
| 25Mn | ≥640 | ≥8 | ≥620 | ≥510 | ≥15 | 190 | / | ||
| 27SiMn | ≥780 | ≥5 | ≥700 | ≥580 | ≥10 | 210 | / | ||
| E355 | ≥700 | ≥8 | ≥650 | ≥580 | ≥15 | 195 | ≥27 | ||
| Chemecal composition | |||||||||
Steel grade | C | Si | Mn | P | S | Cr | Ni | Cu | V |
| 20 | 0.17-0.23 | 0.17-0.37 | 0.35-0.65 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | / |
| 45 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | / |
| Q345B | ≤0.20 | ≤0.50 | ≤0.17 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.15 |
| Q345D | ≤0.18 | ≤0.50 | ≤0.17 | ≤0.030 | ≤0.025 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.15 |
| 25Mn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.30 | ≤0.20 | / |
| 27SiMn | 0.22-0.29 | 0.17-0.37 | 0.70-1.0 | ≤0.035 | ≤0.035 | ≤0.25 | ≤0.30 | ≤0.25 | / |
| E355 | ≤0.22 | ≤0.50 | ≤1.60 | ≤0.035 | ≤0.025 | / | / | / | / |
| (Tolerance on ID) um | |||||||||
| ID Size | (Tolerance on ID)um | ||||||||
| 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 | |||||
RFQ:
What is your Guarantee?
1.SO9001:2008 and TS16949 certification, SGS, BV, TUV or other third party inspection is available.
2.High quality with competitive price.
3.Advanced technology, experienced engineer, ISO quality system for quality assurance and traceability.
Do you have agent or distributor in our country?
1.We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
How is your production capability?
1.2000 tons monthly production capacity, 5000 tons monthly trading capability
2.Prompt and Timely shipment
How to get the sample?
1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.
What is your Payment Term?
1.T/T: 30% deposit in advance, the balance 70% paid before shipment
2.30% down payment, the balance 70% paid against L/C at sight
3.Upon negotiation
Who are your customers?
1.Stockists, Distributors,Wholesalors,Agents, Traders, End Users, etc
How long will you react on our requirement?
1.Your requirement would be treated within 24 hours on weekdays. Quotations would be sent upon technical details confirmed by customer!
Any more questions about your doubts, please feel free to send us your emails or call!
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