Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

ASTM A556 carbon steel seamless pipe

ASTM A556M-96 "water heater with carbon steel cold drawn seamless pipe."
 
Name: Seamless Carbon Steel Pipe 
Material: SA556MC2.15Mo3.20
Outside Diameter: 16mm-32mm 
Wall thickness: 1.3mm-3mm 
Length: 3m-12m 
Standards: ASTM A556M
Type: Seamless 
 
ASTM A556M steel pipe
1 General requirements
Supply of steel in accordance with this standard, except as otherwise provided, shall conform to ASTM A450 / A450M Standard current version of the applicable requirements.
 
 
2 grade and chemical composition (%)
               Cmax Mn Pmax Smax Si min
Grade A2 0.18 0.27 ~ 0.63 0.035 0.035 -
Grade B2 0.27 0.29 ~ 0.93 0.035 0.035 0.10
Grade C2 0.30 0.29 ~ 1.06 035 0.035 0.10
NOTE: When ordering the standard steel pipe, if the request to add any element other than an element should be excluded from the provisions of the supply.
 
 
3 Tensile Properties
MPa yield strength MPa tensile elongation (50mm vertical)%
Grade A2 ≥320 ≥180 ≥35
Grade B2 ≥410 ≥260 ≥30
Grade C2 ≥480 ≥280 ≥30
 
 
4 hardness requirements
Grade A2 ≤HRB 72
Grade B2 ≤HRB 79
Grade C2 ≤HRB 89
Sampling Requirements: Take any two steel samples of each batch for testing.
 
 
5 size deviation
Outside diameter D <25.4mm 0.1mm
25.4≤D≤31.7mm 0.15mm
Wall thickness of 0 to + 20%
 
 
6 surface accuracy and appearance
Pipe should not have iron oxide;
Pipe should be fairly straight, and should have a smooth tube ends without burr;
Pipe should have a finished surface, there should not be removed to allow the wall thickness tolerances in the range of surface defects.
 
 
7 flattening test
The method according to ASTM A450 regulations, the number of samples and requirements: either take a batch of steel. Take the cut at both ends of a sample for testing.
 
 
8 flaring test
The method according to ASTM A450 regulations, the number of samples and requirements: either take a batch of steel. Take the cut at both ends of a sample for testing is www.steelpipechn.com.
 
 
9 NDT
Provisions should be standard ASTM A450, after the last cold drawn by root after the final heat treatment after non-destructive testing.
 
 
10 Delivery Status
Heat treatment, final cold drawing should be carried out after the heat treatment at higher temperature or 640 ℃.
 
 
11 mark
Including plant name and the purchase order number, standard number, grade and size, the demand side is specified, the bar code can be used as a supplement to sign.
 
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