High reputation Steel Pipe And Tube - Seamless steel tubes for normal structure – Sanonpipe
High reputation Steel Pipe And Tube - Seamless steel tubes for normal structure – Sanonpipe Detail:
Overview
Application
It Is Mainly Used To Make Carbon Structural Steel, Alloy Structural Steel and mechanical structures.
Main Grade
Grade Of Carbon Structural Steel: 10,20,35, 45,Q345,Q460,Q490,Q620,, Etc
Grade Of Alloy Structural Steel: 42CrMo,35CrMo, Etc
Chemical Component
Steel Grade |
Quality level |
Chemical composition |
||||||||||||||
C |
Si |
Mn |
P |
S |
Nb |
V |
Ti |
Cr |
Ni |
Cu |
Nd |
Mo |
B |
Als” |
||
no greater than |
not less than |
|||||||||||||||
Q345 | A |
0.20 |
0.50 |
1.70 |
0.035 | 0.035 |
0.30 |
0.50 |
0.20 |
0.012 |
0.10 |
—— | — | |||
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 |
0.07 |
0.15 |
0.20 |
0.015 |
||||||||||
D |
0.18 |
0.030 | 0.025 | |||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q390 | A |
0.20 |
0.50 |
1.70 |
0.035 | 0.035 |
0.07 |
0.20 |
0.20 |
0.3 |
0.50 |
0.20 |
0.015 |
0.10 |
— | — |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 |
0,015 |
|||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q42O | A |
0.20 |
0.50 |
1.70 |
0.035 | 0.035 |
0.07 |
0.2 |
0.20 |
0.30 |
0.80 |
0.20 |
0.015 |
0.20 |
—— |
—— |
B | 0.035 | 0.035 | ||||||||||||||
C | 0.030 | 0.030 |
0.015 |
|||||||||||||
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q46O | C |
0.20 |
0.60 |
1.80 |
0.030 | 0.030 |
0.11 |
0.20 |
0.20 |
0.30 |
0.80 |
0.20 |
0.015 |
0.20 |
0.005 |
0.015 |
D | 0.030 | 0.025 | ||||||||||||||
E | 0.025 | 0.020 | ||||||||||||||
Q500 | C |
0J8 |
0.60 |
1.80 |
0.025 | 0.020 |
0.11 |
0.20 |
0.20 |
0.60 |
0.80 |
0.20 |
0.015 |
0.20 |
0.005 |
0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q550 | C |
0.18 |
0.60 |
2.00 |
0.025 | 0,020 | 0.11 |
0.20 |
0.20 |
0.80 |
0.80 |
0.20 |
0.015 |
0.30 |
0.005 |
0.015 |
D | 0.025 | 0,015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
Q62O | C |
0.18 |
0.60 |
2.00 |
0.025 | 0.020 |
0.11 |
0.20 |
0.20 |
1.00 |
0.80 |
0.20 |
0.015 |
0.30 |
0.005 |
0.015 |
D | 0.025 | 0.015 | ||||||||||||||
E | 0.020 | 0.010 | ||||||||||||||
a. In addition to Q345A and Q345B grades, the steel should contain at least one of the refined grain elements Al, Nb, V, and Ti. According to the needs, the supplier can add one or more refined grain elements. The maximum value shall be as specified in the table. When combined, Nb + V + Ti is not more than 0.22%b. For Q345, Q390, Q420 and Q46O grades, Mo + Cr is not greater than 0.30%c. When Cr and Ni of each grade are used as residual elements, the content of Cr and Ni should not be greater than 0.30%; when it is necessary to add, the content should meet the requirements in the table or be determined by the supplier and the buyer through consultation.d. If the supplier can ensure that the nitrogen content meets the requirements in the table, the nitrogen content analysis may not be performed. If Al, Nb, V, Ti and other alloy elements with nitrogen fixation are added to the steel, the nitrogen content is not limited. The nitrogen fixation content should be specified in the quality certificate.
e. When using full aluminum, the total aluminum content Alt ≥ 0020%. |
Grade |
Carbon equivalent CEV (mass fraction) /% |
|||||
Nominal wall thickness s≤ 16mm |
Nominal wall thickness S2>16 mm〜30 mm |
Nominal wall thickness S>30mm |
||||
Hot rolled or normalized normalized |
Quenching +tempering |
Hot rolled or normalized |
Quenching +tempering |
Hot rolled or normalized |
Quenching +tempering |
|
Q345 |
<0.45 |
— |
<0.47 |
— |
<0.48 |
一 |
Q390 |
<0.46 |
一 |
W0.48 |
— |
<0.49 |
— |
Q420 |
<0.48 |
一 |
<0.50 |
<0.48 |
<0.52 |
<0,48 |
Q460 |
<0.53 |
<0.48 |
W0.55 |
<0.50 |
<0.55 |
W0.50 |
Q500 |
一 |
<0.48 |
一 |
<0.50 |
一 |
W0.50 |
Q550 |
— |
<0.48 |
.一 |
<0.50 |
一 |
<0.50 |
Q62O |
— |
<0.50 |
— |
<0.52 |
— |
W0.52 |
Q690 |
— |
<0.50 |
— |
<0.52 |
— |
W0.52 |
Mechanical Property
Mechanical properties of high-quality carbon steel structural steel and low-alloy high-strength structural steel pipes
Grade | Quality level | Yield Strength | Lower yield strength | Elongation after breaking | Impact test | |||
Nominal wall thickness | temperature | Absorb energy | ||||||
<16 mm | >16 mm〜 | 〉30 mm | ||||||
30 mm | ||||||||
not less than | not less than | |||||||
10 | — | >335 | 205 | 195 | 185 | 24 | — | — |
15 | — | >375 | 225 | 215 | 205 | 22 | — | 一 |
20 | —— | >410 | 245 | 235 | 225 | 20 | — | — |
25 | — | >450 | 275 | 265 | 255 | 18 | — | — |
35 | — | >510 | 305 | 295 | 285 | 17 | 一 | — |
45 | — | 2590 | 335 | 325 | 315 | 14 | — | — |
20Mn | —• | >450 | 275 | 265 | 255 | 20 | — | 一 |
25Mn | — | >490 | 295 | 285 | 275 | 18 | — | — |
Q345 | A | 470—630 | 345 | 325 | 295 | 20 | — | 一 |
B | 4~20 | 34 | ||||||
C | 21 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
Q39O | A | 490—650 | 390 | 370 | 350 | 18 | ||
B | 20 | 34 | ||||||
C | 19 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
Q42O | A | 520〜680 | 420 | 400 | 380 | 18 | ||
B | 20 | 34 | ||||||
C | 19 | 0 | ||||||
D | -20 | |||||||
E | -40 | 27 | ||||||
Q46O | C | 550〜720 | 460 | 440 | 420 | 17 | 0 | 34 |
D | -20 | |||||||
E | -40 | 27 | ||||||
Q500 | C | 610〜770 | 500 | 480 | 440 | 17 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
Q550 | C | 670〜830 | 550 | 530 | 490 | 16 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
Q62O | C | 710〜880 | 620 | 590 | 550 | 15 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 | ||||||
Q690 | C | 770〜94。 | 690 | 660 | 620 | 14 | 0 | 55 |
D | -20 | 47 | ||||||
E | -40 | 31 |
Mechanical properties of alloy steel pipes
NO | Grade | Recommended heat treatment regime | Tensile properties | Annealed or high temperature tempered steel pipe Delivery condition Brinell hardness HBW | ||||||
Quenching (normalizing) | Tempering | Yield StrengthMPa | Tensile Strength MPa | Elongation after breaking A% | ||||||
temperature | Coolant | Temperature | Coolant | |||||||
Frirst | Second | not less than | no greater than | |||||||
1 | 40Mn2 | 840 | Water, oil | 540 | Water, oil | 885 | 735 | 12 | 217 | |
2 | 45Mn2 | 840 | Water,oil | 550 | Water, oil | 885 | 735 | 10 | 217 | |
3 | 27SiMn | 920 | Water | 450 | Water, oil | 980 | 835 | 12 | 217 | |
4 | 40MnBc | 850 | oil | 500 | Water, oil | 980 | 785 | 10 | 207 | |
5 | 45MnBc | 840 | oil | 500 | Water, oil | 1 030 | 835 | 9 | 217 | |
6 | 20Mn2Bc’f | 880 | oil | 200 | Water, air | 980 | 785 | 10 | 187 | |
7 | 20CrdJ | 880 | 800 | Water,oil | 200 | Water, air | 835 | 540 | 10 | 179 |
785 | 490 | 10 | 179 | |||||||
8 | 30Cr | 860 | oil | 500 | Water, oil | 885 | 685 | 11 | 187 | |
9 | 35Cr | 860 | oil | 500 | Water, oil | 930 | 735 | 11 | 207 | |
10 | 40Cr | 850 | oil | 520 | Water, oil | 980 | 785 | 9 | 207 | |
11 | 45Cr | 840 | oil | 520 | Water, oil | 1 030 | 835 | 9 | 217 | |
12 | 50Cr | 830 | oil | 520 | Water, oil | 1 080 | 930 | 9 | 229 | |
13 | 38CrSi | 900 | oil | 600 | Water, oil | 980 | 835 | 12 | 255 | |
14 | 20CrModJ | 880 | Water,oil | 500 | Water, oil | 885 | 685 | 11 | 197 | |
845 | 635 | 12 | 197 | |||||||
15 | 35CrMo | 850 | oil | 550 | Water, oil | 980 | 835 | 12 | 229 | |
16 | 42CrMo | 850 | oil | 560 | Water, oil | 1 080 | 930 | 12 | 217 | |
17 | 38CrMoAld | 940 | Water, oil | 640 | Water, oil | 980 | 835 | 12 | 229 | |
930 | 785 | 14 | 229 | |||||||
18 | 50CrVA | 860 | oil | 500 | Water, oil | 1 275 | 1 130 | 10 | 255 | |
19 | 2OCrMn | 850 | oil | 200 | Water、air | 930 | 735 | 10 | 187 | |
20 | 20CrMnSif | 880 | oil | 480 | Water, oil | 785 | 635 | 12 | 207 | |
21 | 3OCrMnSif | 880 | oil | 520 | Water, oil | 1 080 | 885 | 8 | 229 | |
980 | 835 | 10 | 229 | |||||||
22 | 35CrMnSiA£ | 880 | oil | 230 | Water、air | 1 620 | 9 | 229 | ||
23 | 20CrMnTie-f | 880 | 870 | oil | 200 | Water、air | 1 080 | 835 | 10 | 217 |
24 | 30CrMnTie*f | 880 | 850 | oil | 200 | Water、air | 1 470 | 9 | 229 | |
25 | 12CrNi2 | 860 | 780 | Water,oil | 200 | Water、air | 785 | 590 | 12 | 207 |
26 | 12CrNi3 | 860 | 780 | oil | 200 | Water、air | 930 | 685 | 11 | 217 |
27 | 12Cr2Ni4 | 860 | 780 | oil | 200 | Water、air | 1 080 | 835 | 10 | 269 |
28 | 40CrNiMoA | 850 | —— | oil | 600 | Water、air | 980 | 835 | 12 | 269 |
29 | 45CrNiMoVA | 860 | — | oil | 460 | oil | 1 470 | 1 325 | 7 | 269 |
a. Allowable adjustment range of heat treatment temperature listed in the table: quenching ± 15 ℃, low temperature tempering ± 20 ℃, high temperature tempering soil 50 ℃.b. In the tensile test, transverse or longitudinal samples can be taken. In case of disagreement, the longitudinal sample is used as the basis for arbitration.c. Boron-containing steel can be normalized before quenching, and the normalizing temperature should not be higher than its quenching temperature.
d. Delivery according to a set of data specified by the demander. When the demander has not specified, delivery can be made according to any of the data. e. The first quenching of titanium steel with Ming Meng can be replaced by normalizing. f. Isothermal quenching at 280 C ~320 C. g. In the tensile test, if Rel cannot be measured, Rp0.2 can be measured instead of Rel. |
Test Requirement
Chemical composition,Stretch,Hardness,Shock,Squash,Bending,Ultrasonic testing,Eddy current,detection,Leak detection,Galvanized
Supply Ability
Supply Ability: 2000 Tons Per Month Per Grade Of GB/T8162-2008 Steel Pipe
Packaging
In Bundles And In Strong Wooden Box
Delivery
7-14 days if in stock, 30-45 days to produce
Payment
30% depsoit, 70% L/C or B/L copy or 100% L/C at sight
Product Detail
Mechanical/Chemical&Fertilizer Pipes
GB/T 8162-2008
ASTM A519-2006
BS EN 10210-1-2006
ASTM A53/A53M-2012
GB 9948-2006
GB 6479-2013
GB/T 17396-2009
Product detail pictures:
Related Product Guide:
Well-run devices, expert profits group, and better after-sales companies; We have been also a unified huge family, everybody keep on with the organization worth "unification, determination, tolerance" for High reputation Steel Pipe And Tube - Seamless steel tubes for normal structure – Sanonpipe , The product will supply to all over the world, such as: Johor , Zambia , Puerto Rico , Our professional engineering group will always be ready to serve you for consultation and feedback. We are able to also offer you with absolutely free samples to meet your requirements. Finest efforts will likely be produced to give you the ideal service and goods. For anyone who is thinking about our company and merchandise, please contact us by sending us emails or contact us quickly. As a way to know our merchandise and firm. lot more, you can come to our factory to find out it. We'll always welcome guests from all over the world to our business to build company relations with us. Please feel free to get in touch with us for business and we believe we are going to share the top trading practical experience with all our merchants.
By Betty from Bulgaria - 2017.06.19 13:51
This manufacturer can keep improving and perfecting products and service, it is in line with the rules of market competition, a competitive company.
By Meredith from Austria - 2018.10.01 14:14