A 556 / A 556m Grade A2 Seamless Boiler Tubes Carbon Steel
Basic Properties
Place of Origin:
China
Brand Name:
Torich
Certification:
ISO9001
Trading Properties
Minimum Order Quantity:
2Ton
Price:
USD2000-3000
Payment Terms:
L/C,D/A,D/P,T/T
Supply Ability:
50000Ton per years
Product Summary
A 556/A 556M Grade A2 Seamless Carbon Steel Boiler Tubes for Boiler Pipe 1.Standard Scope 1.1 This specifification2 covers minimum-wall-thickness,seamless cold-drawn carbon steel tubes including bending into the form of U-tubes, if specifified,for use in tubular feedwater heaters. 1.2 The tubing ...
Product Details
Highlight:
precision seamless boiler tubes
,a 556 seamless boiler tubes
,precision carbon steel boiler tubes
Application:
Boiler
Grade:
A2, B2, C2
Supply Ability:
60000 Ton Per Year
Standard:
ASTM A556
Product Description
A 556/A 556M Grade A2 Seamless Carbon Steel Boiler Tubes for Boiler Pipe
1.Standard Scope
1.1 This specifification2 covers minimum-wall-thickness,seamless cold-drawn carbon steel tubes
including bending into the form of U-tubes, if specifified,for use in tubular feedwater heaters.
1.2 The tubing sizes covered shall be 5 ⁄8 to 11 ⁄4-in. [15.9 to 31.8-mm] outside diameter, inclusive,
with minimum wall thicknesses equal to or greater than 0.045 in. [1.1 mm].
1.3 Optional supplementary requirements are provided, and when desired,shall be stated in the order.
2.Manufacture
(1)Manufactur-------Tubes shall be made by the seamless process and shall be cold drawn.
(2 )Heat Treatment:
2.2.1 Cold-drawn tubes shall be heat treated after the fifinal cold-draw pass at a temperature
of 1200°F[640°C] or higher to ensure ductility satisfactory for rolling into tube sheets and tomeet
mechanical properties as specifified.
2.2.2 If stress-relief anneal of the U-bends is specifified, the anneal shall consist of heating the bent
portion within a range of 1100 to 1200°F [585 to 640°C].
3.Chemical Requirement :
|
Element | Composition ,% | ||
| Grade A2 | Grade B2 | Grade C2 | |
| Carbon, max | 0.18 | 0.27 | 0.30 |
| Manganese | 0.27-0.63 | 0.29-0.93 | 0.29-1.06 |
| Phosphorus, max | 0.035 | 0.035 | 0.035 |
| Sulfur, max | 0.035 | 0.035 | 0.035 |
| Silicon , min | ... | 0.10 | 0.10 |
4.Tensile Requirements:
| Grade A2 | Grade B2 | Grade C2 | |
| Tensile strength,min,ksi(Mpa) | 47(320) | 60(410) | 70(480) |
| Yield Strength,min,ksi(Mpa) | 26(180) | 37(260) | 40(280) |
| Elongation in 2 in or 50min, min,%(longitudinal) | 35 |
30 | 30 |
Related Products
-
Auto Parts ASTM A513 Cold Rolling Welded Steel Tubes with DOM Production
Auto Parts ASTM A513 Welded Steel Tubes with DOM production ASTM A513 Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing Applications: for Machinery, Mechanical Engineering 1. Standard: ASTM A513 cold rolling welded precision steel tubes 2. Steel Grade: SAE1010, SAE1020, other materials upon agreement with customers. 3. Production method: Cold rolling on the weled steel tubes, to reach high accuracy on the OD and WT tolerance 4. Size range: O.D.:6-350mm W.T. -
25mm Diameter Bright Annealing Seamless Steel Tube for Hydraulic Systems
EN10305-1 E235 E355 NBK Bright Annealing Precision Steel Pipes for Hydraulic Systems EN10305-1 NBK Bright Annealed Precision steel pipes for Hydraulic system OD:4-80 (mm) WT0.5-10 (mm) Length 1000-12000mm Product name: Seamless Precision Steel Pipe Application: for hydraulic systems precision steel pipes for Hydraulic system OD (mm) WT (mm) Length (mm) 4 0.5 5800-6000 4.0 1.0 5800-6000 5.0 1.0 5800-6000 6.0 1.0 5800-6000 6.0 1.5 5800-6000 8.0 1.0 5800-6000 9.5 0.89 5800-6000 -
Precision Seamless Black Phosphating Steel Tube for Hydraulic Systems
Steel Pipes with high precision for Hydraulic Systems with Black Phosphating surface Black Phosphated Hydraulic Tubes with High Precision and tight tolerance, the tubes are produced by precision cold drawn and cold rolling, then bright annealed in a protected atmosphere, afterwards it is blackphosphated on the surface Production process: DIN series tubes, cold drawn and bright annealed precision seamless steel tube is used as the tube to be phosphated. The phosphorization is -
Precision Seamless Galvanized Steel Tubes DIN2391 EN103052 ST35.0 ST37
Precision Seamless Galvanized Steel Tubes DIN2391 EN103052 ST35.0 ST37 Production Process: Cold rolling by Cold pilger machine and Cold rolling machine,galvanized and zinc plated could be applied. Cold Rolled and Galvanized Steel Tube Production process: DIN highly accurate, cold rolled and bright seamless steel tube is used as the tube to be galvanized. The outer wall of tube is electroplated. The caps are covered at two ends of tube to prevent from the dust. Main Features:
