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ASTM 1025 boiler tube is based on high-quality seamless carbon structural steel, and appropriately add one or several alloying elements to improve the mechanical properties, toughness and hardenability of the steel. Products made from ASTM 1025 steel typically require a heat treatment prior to use (normalized parts made from it typically require tempering or surface chemical treatment (carburizing, nitriding, etc.). Hardening or induction hardening. Therefore, depending on the chemical Composition (mainly carbon content), heat treatment process and application, this type of steel can be roughly divided into three types: carburized steel, quenched and tempered steel and nitrided steel. - High-quality carbon structural steel, appropriately added with one or more alloying elements to improve the mechanical properties, toughness and hardenability of the steel, products made from carbon steel pipe usually require heat treatment (normalizing or tempering); Parts made from 1020 usually require tempering or chemical treatment (carburizing, nitriding, etc.) The surface of the seamless pipe is cold drawn or induction hardened before use. Therefore, depending on the chemical composition of c (mainly carbon content), heat treatment process and application, this type of steel can be roughly divided into three types: nitrided steel, carbon steel and seamless steel.
| Product Name | ASTM 1025 Boiler Steel Pipe |
|
Standard |
ASTM 1025 |
|
Material |
ASTM A-106 (Equivalent to 20G、20MnG、25MnG） |
|
Production Process |
Hot Rolled |
|
Tolerance |
OD :+/-1% ,WT:+/-10% ,Length:+/-5cm |
|
Length |
3-12m or as per customers' requirements |
|
Surface |
Black Painting or According to customer Requirement |
|
Payment Terms |
EXW, FOB, CIF, CFR etc. |
|
Delivery Time |
Within 14 days after Receiving 30% TT Advanced or LC at Sight Original |
|
Application |
Generally, boiler tubes are mainly used to make water wall tubes, boiling water tubes, superheated steam tubes, superheated steam tubes for locomotive boilers, large and small smoke tubes and arched brick tubes. High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air ducts, main steam tubes, etc. of high-pressure and ultra-high-pressure boilers. |
AISI A519 4130, 4140 Seamless Alloy Steel Pipe
The good strength and its hardenability make alloy 4130 steel seamless round tubing a good fit for applications that deal with structural employment. If this low alloy steel is manufactured using specification ASTM A519, they are either hot finished or they may be cold finished. If the ASTM A519 Grade 4130 Pipe is to be a part of mechanical tubing, they could be strand cast or cast in ingots. 4130 Alloy Steel Seamless Pipe is customarily contrived by hot working steel. If imminent, these hot worked tubular pipes are subsequently cold finished in order to construct the solicited dimensions, shape or properties. Pipes are commonly furnished in any one of the following shapes - square, round, rectangular as well as sections of a specific nature. To circumscribe the portions of the elements specified, a heat analysis could be employed. The 4130 Chromoly Steel Pipe could be coated with a film of oil before the performance of any shaping operation. Coating is applied on these pipes to hinder rust if specified by the buyer.
Chemical Composition:
|
Standard |
Steel Grade |
C(%) |
Si(%) |
Mn(%) |
P(%) |
S(%) |
Cr(%) |
Mo(%) |
|
A519 |
1010 |
0.05-0.15 |
0.15-0.35 |
0.3-0.6 |
≤0.04 |
≤0.05 |
- |
- |
|
1020 |
0.15-0.25 |
0.15-0.35 |
0.3-0.6 |
≤0.04 |
≤0.05 |
- |
- |
|
|
1045 |
0.43-0.50 |
0.15-0.35 |
0.6-0.9 |
≤0.04 |
≤0.05 |
- |
- |
|
|
4130 |
0.28-0.33 |
0.15-0.35 |
0.4-0.6 |
≤0.04 |
≤0.04 |
0.8-1.1 |
0.15-0.25 |
|
|
4135 |
0.32-0.39 |
0.15-0.35 |
0.6-0.9 |
≤0.04 |
≤0.04 |
0.8-1.1 |
0.15-0.25 |
|
|
4140 |
0.38-0.42 |
0.15-0.35 |
0.7-1.0 |
≤0.04 |
≤0.04 |
0.8-1.1 |
0.15-0.25 |
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Main Product:
Steel Pipe,
Seamless Steel Pipe,
Carbon Steel Pipe,
Carbon Steel Plate ,
Color Coated Roll,
Galvanized Steel Coil
