ST37-2 is a kind of low carbon steel with carbon content of 0.20%, similar to S235JR or Q235 A709 grade 50 high strength steel. It's not as strong as common ASTM A36, but it is also widely applied by everyday uses and structural applications where high strength is not so important. Equal ST37-2 angle steel size: A709 grade 50 high strength steel Size: 20 × 20 mm to 200 × 200 mm. Thickness: 3 - 35 mm. Length: 6 m, 9 m or as required. Unequal ST37-2 angle steel size: A709 grade 50 high strength steel Size: 30 × 20 mm to 250 × 90 mm. Thickness: 3 to 10 mm. Length: 6 m, 9 m, 12 m or per your request.
Phosphorus is a very harmful element in A709 grade 50 high strength steel steel. With the increase of phosphorus content, the strength, flexion ratio and hardness of A709 grade 50 high strength steel steel increased, but the plasticity and toughness decreased significantly. In particular, the lower the temperature, the greater the impact on plasticity and toughness, increase the cold brittleness of steel.
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BBN offers drilling and machining service for heat exchanger tube sheet production. Drilling is a critical fabrication in manufacturing boiler, A709 grade 50 high strength steel cylinder shell and tube exchangers, The accuracy of tube sheet processing, especially tube hole spacing and tube diameter tolerance verticality, finish are greatly affected by the above listed chemical equipment assembly and use performance.
