
we are the manufacturer of precision seamless steel tube,and we are the top 5 manufacturer in China ,our company mainly produces various specifications of cold finished precision steel tube ,wihich are widely used in hydraulic and pneumatic cylinder for automobile ,engineering machinery ,textil machinery ,printing machinery ,oil drilling and other filed .
Company Name | Yan Tai XinPeng Steel Pipe Co.,Ltd |
Type | manufacture /factory |
Product | cold rolled precision STKM 13C seamless steel pipe |
Technique | Cold rolled /cold drawn/hot rolled |
Standard | DIN2391 / GB/T3639-2000/EN10305/ASTM A519/ASTM A106 |
Grade | 10#-45#,ST35-ST52,Q345,25Mn |
OD | 30mm-250mm |
WT | 2mm-30mm |
Length | According to the customer’s acquirement |
Applied range | structural steel pipe |
Packing | Plain end or beveled end Black painting on outside Plastic caps on both end bundle by steel strip |
MQQ | 5Tons |
Port | Qingdao or yantai |
FOB price | USD0.5-1.5 /Ton |
payment term | T/T,L/C |
Delivery time | 25days after receiving the deposit |
the tolerance of dimensions
OD | GB/T3639(GB8713) | DIN2391(EN10305) | Our Tolerence | Best Quality |
4-30mm | ±0.10mm | ±0.08mm | ±0.05mm | ±0.02mm |
31-40mm | ±0.15mm | ±0.15mm | ±0.05mm | ±0.03mm |
41-50mm | ±0.20mm | ±0.20mm | ±0.05mm | ±0.03mm |
51-60mm | ±0.25mm | ±0.25mm | ±0.08mm | ±0.03mm |
61-70mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
71-160mm | ±0.30mm | ±0.30mm | ±0.10mm | ±0.05mm |
Tolerance in WT | ±0.12mm | ±0.10mm | ±0.05mm | ±0.03mm |
Process | Diameter | Length | Precision | Inner Hole Roughness |
Cold Rolled | 30-100mm | ≤12 m | H8-H10 | 0.4-1.6 |
Cold Draw | 30-250mm | ≤12 m | H8-H10 | 0.8-1.6 |
Honing | 40-500mm | ≤12 m | H8-H9 | 0.4-0.8 |
Rolling | 40-400mm | ≤7 m | H8 | 0.4 |
|
|
|
|
|
Inner Diameter | H8 | H9 | H10 |
|
30mm | ±0.033 | ±0.052 | ±0.084 | 5-30mm |
30-50mm | ±0.039 | ±0.062 | ±0.100 | ±0.080 |
50-80mm | ±0.046 | ±0.074 | ±0.120 |
|
80-120mm | ±0.054 | ±0.087 | ±0.140 |
|
120-180mm | ±0.063 | ±0.100 | ±0.160 |
|
180-250mm | ±0.072 | ±0.115 | ±0.185 |
|
250-315mm | ±0.081 | ±0.130 | ±0.210 |
|
315-400mm | ±0.089 | ±0.140 | ±0.230 |
|
some dimensions
40*50 | 90*110 | 140*170 | 190*215 |
40*55 | 95*110 | 145*170 | 190*220 |
50*60 | 95*115 | 150*170 | 190*225 |
50*65 | 100*110 | 150*175 | 200*220 |
55*70 | 100*114 | 150*180 | 200*225 |
60*70 | 100*115 | 155*180 | 200*230 |
60*75 | 100*120 | 160*175 | 200*245 |
60*78 | 100*125 | 160*180 | 200*250 |
63*73 | 105*125 | 160*185 | 220*250 |
63*75 | 110*125 | 160*190 | 220*270 |
63*76 | 110*130 | 160*195 | 225*250 |
63*78 | 115*130 | 165*190 | 240*273 |
65*80 | 115*135 | 165*205 | 250*290 |
70*80 | 120*140 | 170*200 | 250*300 |
70*82 | 125*140 | 180*200 | 260*300 |
70*85 | 125*145 | 180*205 | 280*323 |
70*90 | 125*150 | 180*210 | 280*355 |
75*90 | 130*150 | 180*215 | 300*350 |
80*92 | 130*155 | 180*220 | 200*213 |
80*95 | 130*160 | 185*205 | 200*216 |
80*100 | 135*160 | 185*215 | 250*266 |
85*100 | 140*160 | 185*220 | |
90*105 | 140*165 | 190*210 |
finished products
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by
3. Big discount for repeat customers
4. Smooth delivering procedure
5. Payment Terms: T/T , L/C And so on.
(1)Delivery time: In 20 days or according to client's requires
(2)Trade terms: EXW/FOB/CIF etc
(3)Payments: T/T or L/C or according to client's requires
(4)Port: Yantai or Qingdao
(5)MOQ: 5 metric tons or at customer's demands
(6)Packing: we usually bundle with steel strips ,branding parcel or wooden box outside ,or according to the customer’s acquirement
Application | Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services. |
For Auto use,machinery use,oil cylinder tube,motorcycle shock reducer use,auto shock reducer inner cylinder,gas spring use etc. | |
Seamless steel pipes for low and medium pressure boiler, high pressure boiler, ship-building,Liquid service, petroleum cracking, chemical fertilizer equipment,Drawing-oil-equipment and structure purposes. |

Why you choose us ?
•Our company established in December 1992,so we have 23years experience in tube manufacture
•We have the best service, quality ,competitive price ,and high reputation in the tube wold
•We can supply all kinds of steel pipes such as:
∞hot rolled/cold drawn seamless steel tubes
∞precision steel tubes
∞honed and skived tubes
∞cold drawn welded tubes (DOM tubes)
Send Inquiry to This Supplier
You May Also Like
-
Inconel 625 Stainless Steel Tube High-Temperature Nickel AlloyUS$ 800 - 1100MOQ: 1 Meter
-
Pressure Resistant Anti-fatigue Tubes, 1.4311 & Super304 Ferritic Stainless Steel Heat Exchanger TubesNegotiableMOQ: 1 Kilogram
-
Advanced Food Packing Machine With Touch Screen Control for User-Friendly OperationUS$ 76.5 - 80MOQ: 10 Combos
-
Electromagnetic Pure Iron Tube for Geological Detectors Featuring Stable PerformanceNegotiableMOQ: 1 Ton
-
ASTM A312 Tp 304h High Temperature and Corrosion Resistant Seamless and Welded Stainless Steel PipeNegotiableMOQ: 1 Ton
-
Hot Selling Excellent Quality DN8-DN325 Stainless Steel PipesNegotiableMOQ: 1
-
Precision Casting Stainless Steel Y-teeUS$ 0.1 - 0.1MOQ: 100 Pieces
-
Metal Chrome 15*30 Oval TubeNegotiableMOQ: 2000 Pieces
-
Professional Ductile Iron Pipe FactoryUS$ 1 - 100MOQ: 1 Piece
-
30*30mm Double Holes Square Brushed Metal Slot Tube for Store DisplayNegotiableMOQ: 1000 Pieces











