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

 
 

Q345 seamless steel pipe related knowledge

 

Q345 seamless steel pipe related knowledge
 
Q345 Seamless Steel Pipe: 
1. OD: 10-457mm, W. T.: 1.2-45mm, length: Random/fixed. 
2. Standard: ASTM, GB, BS, JIS, DIN 
3. Alloy Seamless Steel Pipe Steel Grade: ASTM A53/A106 Gr. A/B, A333, A335 P1, P2, P11, P12, P9, E52100, GB 5310, GB/T18254, GCr15, 15CrMo, Q345 
4. St52 steel pipe Tolerance: OD: +-1%, W. T.: +12.5%/-10% 
5. Ends protection: Plastic caps 
6. Outside Coating: Black painting, anti-corrosion oil or as per required by customer 
7. Packing: Wrapped in bundles by steel strips, or bulk. 
8. Production Capacity: 200, 000tons per year 
Q345 steel pipe
    Q345 Seamless is a steel pipe material. Q represents the yield of this material, the back 345, refers to the yield value of this material at 345 or so. With the increase in the thickness of the material and its yield value is reduced.
Similar to Q235 naming.
 
Q345A, Q345B, Q345C, Q345D, Q345E. This is a hierarchical distinction, represent mainly the impact of different temperature and carry!
 
Q345A level does impact; Q345B grade is 20 degrees room temperature impact; Q345C level is 0 degree impact; Q345D level is -20 degrees impact; the Q345E level is -40 degrees impact. Temperature in the different impact, the shock value is also different.
 
The plate, is a series of low-alloy. In low-alloy material, such material is the most common. Q345 seamless steel pipe past way of talking: 16Mn seamless steel pipe.
 
Q345 seamless steel pipe external implementation standard: GB709 internal implementation of standards for the: GB/T1591-94
 


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