SAE 4140 4130 precision Cold drawn steel seamless pipe
USD $0.5 - $1.5 /Metric Ton
Min.Order:5 Metric Tons
Yantai Xinpeng Steel Pipe Co., Ltd.
cold drawn precision seamless steel tube/pipe according to EN10305-1 (DIN2391)
cold rolled, cold drawn, honed and SRB precision steel tube,Polished seamless steel tube
Din2391 st52.4 Cld rolled bks and polished gas cylinder pipe
china manufacture cold drawn carbon precision seamless steel tube
73*63 65*50 60*45 specification St52 honed pneumatic cylinder tube
Product name: SAE 4140 4130 precision Cold drawn steel seamless pipe
Xinpeng main products
1.Hydraulic Cylinder Tube------Main products of Xinpeng,
Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.
2.SRB tube ----- used in Elevatorbuffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
3.Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.
About our productions:
Production Details: | |||||
Grade: | 20#(CK20,AISI1020),45#(CK45,AISI1045),Q345,ST52(16Mn,Q345D), 42CrMo,25Mn (STKM13C-T),27SiMn.etc cold drawn seamless pipes honed/srb tube, precision steel tube | ||||
ID: | 50-250mm | ||||
ID tolerance: | H8,H9 h10 H11 | ||||
Surface roughness: | Ra 0.2—0.4μm | ||||
Final supply condition: | cold drawn and stress-relieved(BK+S) | ||||
Machining allowance: | 0.5-1.5mm | ||||
Wall thickness: | 10%×ID or better (customized) |
Mechanics performance: | ||||
Material | Tensile strength | Yield strength | Elongation | Hardness |
CK20/20#/AISI1020 | >520 N/ mm2 | >375 N/mm2 | >15% | >85HB |
CK45/45#/AISI1045 | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
ST52/16Mn/Q345D | >600 N/ mm2 | >520 N/ mm2 | >15% | >85HB |
25Mn/STKM 13C-T | >600 N/ mm2 | >530 N/ mm2 | >15% | >85HB |
Tolerance on ID: | ||
No. | Inside diameter (mm) | ID machining allowance (mm) |
1 | 300-80 | 0.5-0.8 |
2 | 81-125 | 0.7-1.1 |
3 | 125-200 | 0.9-1.2 |
4 | 200-250 | 1-1.5 |
Other dimension can be customize |
Size ID*OD (mm) length can be fixed biggest 6M All size can Customized | |||
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 | 200*213 |
70*85 | 125*145 | 180*205 | 200*216 |
70*90 | 125*150 | 180*210 | 250*266 |
75*90 | 130*150 | 180*215 | 60*45 |
80*92 | 130*155 | 180*220 | 70*57 |
80*95 | 130*160 | 185*205 | 90*80 |
80*100 | 135*160 | 185*215 | 102*90 |
85*100 | 140*160 | 185*220 | 50*40 |
90*105 | 140*165 | 190*210 | 55*40 |
Process :
About our test equipment:
Condition of Delivery | 1. NBK(+N) after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium 2. GBK(+A) after cold forming, annealing in non oxidizing medium protective gas 3. BK(+C) the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee 4. BKW(+LC) after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring) 5. BKS(+SR) have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again
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Size ID*OD (mm) length can be fixed biggest 6M | |||
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 | 200*213 |
70*85 | 125*145 | 180*205 | 200*216 |
70*90 | 125*150 | 180*210 | 250*266 |
75*90 | 130*150 | 180*215 | 60*45 |
80*92 | 130*155 | 180*220 | 70*57 |
80*95 | 130*160 | 185*205 | 90*80 |
80*100 | 135*160 | 185*215 | 102*90 |
85*100 | 140*160 | 185*220 | 50*40 |
90*105 | 140*165 | 190*210 | 55*40 |
About our certificate:
About our package
About our deliver conditions:
1. Standard packing with plastic caps and strapped bundles.
2. Commercial length 2000~10500mm,custom lengths upon request
3. Surface protection
About our service:
1. Cargo track service during transporting and feedback service after cargo is loaded on board
2. Flexible terms of payment by T/T and L/C
3. Big discount for repeat customers
4. Smooth delivering procedure