| Payment Type: | L/C,T/T,D/P |
| Incoterm: | FOB,CFR,CIF,EXW |
| Transportation: | Ocean,Land,Express |
| Port: | Tianjin,Qingdao,Shanghai |
Model No.: E235 E355
Standard: Bs, Gb, Astm, Jis, Din, Api
Material: A53-A369, Q195-Q345, 10#-45#, Mn-V Alloy, St35-St52, Cr-Mo Alloy
Section Shape: Round
Place Of Origin: China
Application: Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pipe, Structure Pipe
Production Process: Cold Drawn
Certification: Ce, Api
Special Tube: Api Pipe, Thick Wall Pipe
Whether Alloy: Is Alloy
Tolerance: ±1%
Category: Seamless Steel Pipe
Processing Service: Cutting, Punching, Decoiling, Welding, Bending
| Selling Units | : | Ton |
| Package Type | : | Standard marine packaging, or as required by the customer |
| Picture Example | : |
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Name: honed tubes, honing pipe, hydraulic cylinder tubes, pneumatic cylinder tubes, Honed Pipe, honing tube, seamless Honed Steel Tube, precision tubes, cold drawn honed tubes, skived tubes, skived and roller burnished tubes, skived pipes, SRB tube, SRB pipe, hydraulic SRB tube, hydraulic cylinder skived tubes
Honed Tube Specifications:
1.Steel grade: ST52.3, 1020, CK45, 4140 , E355, 4130, Stainless Steel 304/316, Duplex 2205, Alloy Steel etc.
2.ID: 15mm-1500mm
3.OD:18mm-1800mm
4.Length: max 16m
5.Straightness: 0.5/1000
6.Roughness(Ra): 0.2-0.4um
7.Tolerance EXT: DIN2391, DIN17175, DIN1629, ASTM519, ASTMA106, JISG3441, GB/T8163, GB/T3639, GB9948, GB/T5312 etc.
8.Tolerance INT: ISO H8
9.Surface treatment: galvanized
10.Tolerance: ±7%
11.Oiled or unoiled: Slightly Oiled
12.Delivery date: 22-30
13.Type: cold drawing, cold rolling, honed
14.Conservation: anti rust oiled inside and outside surface, plastic caps in both ends
15.Package: bundle with steel strip and knitting strip, or wooden case.
Popular standard and steel grade:
| EN10305-1 | E355 E235 E410 E470 C45E |
| DIN2391-1 | ST52 ST45 ST52.3 |
| ASTM A519 | SAE1020 SAE1045 SAE1026 |
| GB/T | 20# 45# 16Mn Q345B Q345D Q345E 42CrMo 27SiMn |
Application: hydraulic cylinder, pneumatic cylinder, lifting jack, cylinder barrel
Manufacture Method: cold drawn, cold rolled, Hot rolled+Deep Hole Boring
Heat Treating Method/Delivery Condition:
| BK | BKS | GBK | NBK | Q+T |
| +C | +SR | +A | +N | Q+T |
| Cold drawn | Stress relieved | Annealed | Normalized | QUENCHED + TEMPERED |
Hydraulic & pneumatic tube size and parameters:
| Manufacture method | Cylinder ID (mm) | Length (m) | Straightness (mm/m) | Tolerance on ID | Tolerance on WT | Roughness (μm) |
| Cold drawn | 40-420 | ≤16M | 0.2-0.5 | Depends on requirement | ±8% | 0.8-1.6 |
| Cold rolled | 30-100 | ≥14M | 0.2-0.5 | Depends on requirement | ±5% | 0.8-1.2 |
| Cold drawn-honed | 40-420 | 14M | 0.2-0.3 | H8-H9 | ±8% | 0.2-0.8 |
| Cold drawn-skived & burnished | 40-300 | 9M | 0.2-0.3 | H8-H9 | ±8% | ≤0.4 |
| Deep hole boring- honed | 50-1000 | 12M | 0.2-0.3 | H8-H9 | ±8% | ≤0.8 |
| Deep hole boring- skived | 50-300 | 9M | 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 or + SR) | Hardness HB | |||
| Parameters | T.S obN/mm² | Elongation δ5% | T.S obN/mm² | Y.S OsN/mm² | Elongation δ5% | |
| 20# (A106B, ST45, E255) | ≥550 | ≥8 | ≥520 | ≥375 | ≥12 | 175 |
| 45#(CK45) | ≥650 | ≥5 | ≥600 | ≥500 | ≥10 | 190 |
| Q345B(ST52, E355) | ≥640 | ≥5 | ≥600 | ≥520 | ≥15 | 190 |
| 25Mn | ≥640 | ≥5 | ≥600 | ≥510 | ≥15 | 195 |
| 27SiMn | ≥840 | ≥5 | ≥720 | ≥600 | ≥10 | 210 |
Chemical Properties:
| Material | C% | Mn% | Si% | S% | P% |
| 20# | 0.17-0.23 | 0.35-0.65 | 0.17-0.37 | ≤0.035 | ≤0.035 |
| ST45 | ≤0.21 | ≥0.4 | ≤0.35 | ≤0.025 | ≤0.025 |
| E255 | ≤0.21 | 0.4-1.1 | ≤0.35 | ≤0.025 | ≤0.025 |
| 45# | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 |
| Q345B | ≤0.20 | ≤1.70 | ≤0.50 | ≤0.035 | ≤0.035 |
| E355 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.025 | ≤0.025 |
| ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 |
| 25Mn | 0.22-0.29 | 0.70-1.0 | 0.17-0.37 | ≤0.035 | ≤0.035 |
| 27SiMn | 0.24-0.32 | 1.10-1.40 | 1.10-1.40 | ≤0.035 | ≤0.035 |
Tolerance on ID:
|
ID | Tolerance for ID (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 |
Part of size list (ID*OD)
| 40*50 | 100*127 | 240*273 |
| 40*55 | 110*130 | 250*266 |
| 50*60 | 120*140 | 250*280 |
| 50*63 | 120*145 | 250*300 |
| 60*70 | 125*140 | 280*323 |
| 60*73 | 125*145 | 280*325 |
| 63*73 | 140*165 | 300*320 |
| 63*76 | 140*168 | 300*356 |
| 70*80 | 150*180 | 320*340 |
| 70*82 | 160*184 | 320*356 |
| 70*85 | 160*194 | 320*370 |
| 80*90 | 170*200 | 350*370 |
| 80*92 | 180*210 | 400*420 |
| 80*95 | 200*216 |
|
| 80*100 | 200*220 |
|
| 90*102 | 200*232 |
|
| 90*105 | 200*245 |
|
| 100*114 | 220*250 |
|
| 100*121 | 220*273 |
|
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