
GOST 4543 Alloy Pipe for Water Wall Pannel
This pipe follow the GOST4543 which is for alloyed construction
hot-rolled and forged gauged steel with diameter or thickness up to
250mm, and steel with a special surface finish, used in a thermally
treated condition and produced in the form of bars, strips and
hanks.
The mass fraction of phosphorus, sulfur, residual copper, nickel
and chromium in steel of all grades shall not exceed the standards
specified in table.
Category of steel | Mass fraction of elements, %, no more | ||||
Phosphorus | Sulfur | Copper | Nickel | Chromium | |
Quality | 0.035 | 0.035 | 0.30 | 0.30 | 0.30 |
High- quality | 0.025 | 0.025 | 0.30 | 0.30 | 0.30 |
Extra high quality | 0.025 | 0.015 | 0.25 | 0.30 | 0.30 |
The hardness of cold-hardened steel with diameter or thickness more
than 5mm shall be no more than HB 269 (diameter of imprint shall be
no less than 3.7mm) or shall be stipulated by agreement between the
manufacturer and the customer except for steel of grades 15X 15XA
20X 30X 35X 15T 18XTT 15XΦ whose hardness shall comply with
standards specified in tables
Grade of steel | Diameter of imprint, mm, no less than | Hardness number, HB, no more than |
15X 15XA | 4.1 | 217 |
20X | 4.0 | 229 |
30X | 3.9 | 241 |
35X | 3.8 | 255 |
15T | 4.2 | 207 |
18XTT | 4.0 | 229 |
15 XΦ | 4.1 | 217 |
| Heat treatment | Yield stress N/mm2 | Ultimate strength N/ mm2 | Elongation | Contraction | Shock viscosity | Dimension of billet cross section for heat treatment | ||||
Quenching | Tempering | ||||||||||
Temperature | Cooling medium | Tempe-rature | Cooling medium | ||||||||
Of first quench-ing or normal-ization | Of second quenchi-ng |
| |||||||||
15X | 880 | 770 to 820 | Water or oil | 180 | Air or oil | 490(50) | 690(70) | 12 | 45 | 69(7) | 15 |
20X | 860 | 770 to 820 | oil | 180 | Air or oil | 635(65) | 780(80) | 11 | 40 | 59(6) | 15 |
30X | 900air | - | oil | 500 | Water or oil | 685(70) | 880(90) | 12 | 45 | 69(7) | 25 |
30XPA | 860 | 860 | oil | 200 | Water or oil | 1275(130) | 1570(160) | 9 | 40 | 49(5) | - |
35X | 860 | - | oil | 500 | Water or oil | 735(75) | 910(93) | 11 | 45 | 69(7) | 25 |
38XA | 860 | - | oil | 550 | Water or oil | 785(80 | 930(95) | 12 | 50 | 88(9) | 25 |
40X | 860 | - | oil | 500 | Water or oil | 785(80) | 980(100) | 10 | 45 | 59(6) | 25 |
45X | 840 | - | oil | 520 | Water or oil | 835(85) | 1030(105) | 9 | 45 | 49(5) | 25 |
Dimension of bars, mm | Depth of stripping of defect, no more than | |
Quality and high quality steel | Extra high quality steel | |
Over200 | 6% of dimension | 3% of dimension |
From 140 to 200 | 5% of dimension | 3% of dimension |
From 80 to 120 | Sum of maximum deviations | Half of dimension |
Less than 80 | Half the sum of maximum deviations |
Torich International Co.,Ltd is a professional manufacturer and
exporter of steel pipes materials. It is an international marketing
and sales company specialized in steel tubes, which holds the
factories of Seamless Steel Tubes with Carbon and Alloy Steel
Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless &
Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan
Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great
engineering experience in steel pipe industry for more than 20
years, which are in great command of production technology for Cold
Drawing and Cold Rolling. So we have strong technician team and
manufacturing capability.
TORICH INTERNATIONAL LIMITED
Who We are ?
-------A professional steel pipes materials inventor, manufacturer
and solution provider
Torich International Limited is a professional manufacturer
and exporter of steel pipes materials. It is an international
marketing and sales company specialized in steel tubes, which holds
the factories of Seamless Steel Tubes with Carbon and Alloy Steel
Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless &
Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan
Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great
engineering experience in steel pipe industry for more than 20
years, which are in great command of production technology for Cold
Drawing and Cold Rolling. So we have strong technician team and
manufacturing capability.
What products we do?
------- Invent and produce various Precision Steel Pipes
Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes
Bearing Steel Tubes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes
Honed Tubes
Hydraulic Cylinder Steel Tubes
Hydraulic Telescopic Cylinder Tubes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes
What TORICH do:
1. Producing Steel Tubes
2. Selling both on Domestic and International Market
3. Precisely Targeting Customers’ Requirement- Sourcing the right
factory for right products for Customers
Products Application:
Oil Cylinders
Air Cylinder,
Automotive Cylinder Liners
Boilers, Pressure Vessels
Shell & Heat Exchangers
Jack Lifting
Telescopic Systems
Pneumatic Cylinders
Agricultural Machineries
Size range is:
O.D. 4-350mm,
W.T. 0.5-30mm,
Length: according to customer’s requirement and agreement
Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1,
P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.
Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3,
13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube: A179,A192,A210,DIN17175,etc.
Bearing Steel Grades:
GCr15 52100 suj2 suj3 100Cr6 SKF3S SKF3S 20CrNiMo 8620H 4118H;
Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219,
N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925,
N08926, N010276, N06022, etc.
Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S,
253MA, 330, 904L, S31254, XM-19, etc.
Ferrite/Martensite Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439,
TP446, etc.
Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.
Corporate Culture:
We focus on Quality First, Quality Traceability, and Quality
Stability!
We focus on Customer First, People First, and Quality-Oriented!
Success:
First factory started in 1997, in the name of Torich , now covers
50000 square meters of factory building, with more than
100employees, and over 45 million RBM assets.
In 2008, we started the company of Torich International
Limited for international business and marketing.
Welcome partners from all over the world for long term cooperation!