1571 1571 1045 4130 4140 seamless steel pipe
Higher CZPT Seamless Steel Tube for Automotive Industry and CZPT Software
Applications
one. Automotive fields
A. Gasoline injection lines/nozzles
B. CNG (Compressed Character Gas) tube– Burst stress: 1307Bar, Functioning Pressure: about 350bar
C. Push transmission: Steering column components
D. Equipment shafts, hand brake, entrance axles, airbag inflators, stabilizers, seat fasteners, front-wheel travel shafts
E. Shock absorber and others
two. CZPT Fields
A. CZPT circuits (HPL), pneumatic traces, and hydraulic suspension method
B. CZPT cylinders (HPZ)
three. Other Fields
CZPT equipment, CZPT cylinder, heat exchanger, large precision machines, oil lines, and other folks in need
Further Surface area Treatment method After TUBE MACZPT
one. Galvanizing
A. Silver galvanized
B. Yellow galvanized
C. CZPT green coated
Layer thickness: 8-20um, Salty Spray Test: 48-150 hours
2.Black phosphate
| Content Chemical Composition (%) | |||||||||
| Steel Grade | Material Variety | C | Si | Mn | P Max | S Max | Cr | Mo | |
| ASTM A519 | 1571 | – | .08-.13 | – | .3-.6 | .04 | .05 | – | – |
| 1571 | – | .eighteen-.23 | – | .3-.six | .04 | .05 | – | – | |
| 1045 | – | .43-.fifty | – | .6-.nine | .04 | .05 | – | – | |
| 4130 | – | .28-.33 | .fifteen-.35 | .40-.sixty | .04 | .04 | .eight-1.1 | .15-.25 | |
| 4140 | – | .38-.forty three | .fifteen-.35 | .75-1. | .04 | .04 | .8-1.one | .15-.twenty five | |
| Substance Chemical Composition (%) | |||||||||
| Common | Metal Grade | Substance Quantity | C | Si | Mn | P | S | Cr | Mo |
| DIN 2391 | ST35 | one.0308 | <= 0.17 | <= 0.35 | >=.04 | <=0.571 | <=0.571 | – | – |
| ST45 | one.0408 | <= 0.21 | <= 0.35 | >=.04 | <=0.571 | <=0.571 | – | – | |
| ST52 | one.058 | <= 0.22 | <= 0.55 | <=1.60 | <=0.571 | <=0.571 | – | – | |
| BK | BKW | BKS | GBK | ||||||
| Steel Grade | Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Toughness (Mpa) Min | A Elongation(%) Min | Rm Tensile Power (Mpa) Min | Rel Produce Toughness(Mpa) Min | A Elongation (%) Min | Rm Tensile Energy (Mpa)Min | A Elongation (%)Min |
| ST35 | 480 | 6 | 420 | ten | 420 | 315 | 14 | 315 | 25 |
| ST45 | 580 | 5 | 520 | eight | 520 | 375 | 12 | 390 | 21 |
| ST52 | 640 | 4 | 580 | 7 | 580 | 420 | ten | 490 | 22 |
| Regular | Steel Grade | Material Variety | C | Si | Mn | P | S | Cr | Mo |
| EN10305-one EN10305-4 |
E235 | one.0308 | <= 0.17 | <= 0.35 | >=.04 | <=0.571 | <=0.571 | – | – |
| E255 | 1.0408 | <= 0.21 | <= 0.35 | >=.04 | <=0.571 | <=0.571 | – | – | |
| E355 | 1.058 | <= 0.22 | <= 0.55 | <=1.60 | <=0.571 | <=0.571 | – | – |
| Steel Grade | (+C) | (+LC) | (+SR) | (+A) | (+N) | |||||||
| Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Strength (Mpa) Min | A Elongation(%) Min | Rm Tensile Power (Mpa) Min | Rel Yield Energy(Mpa) Min | A Elongation (%) Min | Rm Tensile Energy (Mpa)Min | A Elongation (%)Min | Rm Tensile Strength (Mpa) | Rel Generate Strength (Mpa) Min | A Elongation (%) Min | |
| E235 | 480 | six | 420 | 10 | 420 | 350 | sixteen | 315 | twenty five | 340-480 | 235 | twenty five |
| E255 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440-570 | 255 | 21 |
| E355 | 640 | 4 | 580 | 7 | 580 | 450 | ten | 450 | 22 | 490-630 | 355 | 22 |
| Substance Chemical Composition (%) | ||||||||||||
| Standard | Steel Grade | Materials Number | C | Si | Mn | P | S | Cr | Mo | Tensile energy Rm (Mpa) | Yield Power Reh (Mpa) Min | A Elongation(%) Min |
| DIN1629 | ST37 | 1.5714 | ≤ .seventeen | ≤ .55 | ≤1.60 | ≤0.04 | ≤0.04 | – | – | 350-480 | 235 | 25 |
| ST44 | 1.5718 | ≤ .21 | ≤ .55 | ≤1.sixty | ≤0.04 | ≤0.04 | – | – | 420-550 | 275 | 21 | |
| ST52 | 1.571 | ≤ .22 | ≤ .55 | ≤1.60 | ≤0.04 | ≤0.035 | – | – | 550-650 | 355 | 22 | |
| DIN1630 | ST37.four | one.5715 | ≤ .seventeen | ≤ .35 | ≥0.035 | ≤0.04 | ≤0.04 | – | – | 350-480 | 235 | 25 |
| ST44.four | one.5717 | ≤ .21 | ≤ .35 | ≥0.04 | ≤0.04 | ≤0.04 | – | – | 420-550 | 275 | 21 | |
| ST52.4 | one.5711 | ≤ .22 | ≤ .fifty five | ≤1.sixty | ≤0.04 | ≤0.035 | – | – | 550-650 | 355 | 22 | |
Many other steel grades and CZPT – modified steel grades are available on request
| Some samples of relevant metal grade | ||||||
| GB | TOCT | ASTM | BS | JIS | NF | DIN |
| 10F | 1571 | 040A10 | XC10 | |||
| 10 | ten | ten,101,012 | 045M10 | S10C | XC10 | C10,CK10 |
| twenty | twenty | 1571 | 050A20 | S20C | XC18 | C22,CK22 |
| forty five | 45 | 1045 | 080M46 | S45C | XC45 | C45,CK45 |
| 30CrMo | 30XM | 4130 | 1717COS110 | SCM420 | 30CD4 | |
| 42CrMo | 4140 | 708A42 | 42CD4 | 42CrMo4 | ||
| 708M40 | ||||||
| 35CrMo | 35XM | 4135 | 708A37 | SCM3 | 35CD4 | 34CrMo4 |
Delivery conditions: CZPT tubes are delivered in following conditions (first symbol lists previous designation, the new one according to EN is in brackets):
BK (+C) Cold finished/hard (cold finished as drawn).
No heat treatment after last cold forming process.
BKW (+LC) Cold finished/soft (lightly cold worked).
After last heat treatment there is a light finishing pass (cold drawing).
BKS (+SR) Cold finished/stress relieve annealed.
After the final cold forming process the tubes are stress relieve annealed.
GBK (+A) Annealed.
After the final cold forming process the tubes are annealed in a controlled atmosphere.
NBK (+N) Normalized.
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere.
Checks: all tubes are checked according to the relevant production standardsupplementary/optional tests are available on request chemical mechanical and technological tests are made according to relevant standard
Certificates: according to EN 15714 3.1
Packed in bundles or packing containers
