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Annealing, hardening and heat treatment of the boiler house steel

Annealing, hardening and heat treatment of the boiler house steel

Are you interested in annealing, hardening and heat treatment of the boiler house steel? The supplier Avlob offers to buy a boiler steel at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.

The urgency of heat treatment of boiler steels

Since all the grades of boiler steels belong to the group of low-carbon alloyed steels that have good ductility but low hardness, they are heat treated after rolling. The need for heat treatment is also caused by undesirable transformations in the microstructure of steels. In particular, unalloyed steels with heating up to 350… 450 ° C are prone to spontaneous spheroidization — the destruction of strong plates of iron carbide, and their subsequent disintegration into separate sections of the spherical shape.

Heat treatment, GOST 5220−79

Make Note
16K and 18K Sheets hot-rolled. On demand without normalization
15K and 20K Produced without normalization
22K Heat treatment on demand
17GS, 17G1S Mandatory normalization or tempering with leave)
10Г2С1 Thickness of sheet more than 20 mm — mandatory normalization or hardening with tempering)

Sheets made of low-alloy boiler house are made without heat treatment or heat-treated, including from rolling heating (ТО); at the request of the customer, normalization or quenching with tempering service may be performed; The supplier Avlob offers to buy a boiler steel at a bargain price. The price is the best in this segment of rental.

Modes of heat treatment of boiler steels

steel grade The thickness of the sheet,
mm		 St
MPa

 Sv, MPa
 d5,% KCU, J / cm at temperature, ° С

 KCU J / cm, after aging at + 20 ° C,
        +20 -40 -70  
  not less than
09G2S Before 5       345 490 21 - - - -
  From 5 before 10   345 490)   64 39 34 29
  « 10 « 20   325 470   59 34 29  
  St. 20 « 32 « 305 460   59 34 29  
  « 32 « 60 « 285 450   59 34 29  
  « 60 « 80 « 275 440   59 34 29  
  « 80 « 160 « 265 430   59 34 29  
10Г2С1 Before 5       355 490 21 - - - -
  From 5 before 10   345 490   64 39 29 29
  « 10 « 20   335 480   59 29 24  
  St. 20 « 32 « 325 470   59 29 24  
  « 32 « 60 « 325 450   59 29 24  
  « 60 « 80 « 295 430   59 29 24  
  « 80 « 100 « 295 430   59 29 24  
16GS Before 5       325 490 21 - - - -
  From 5 before 10   325 490   59 39 29 29
  « 10 « 20   315 480   59 29 24  
  St. 20 « 32 « 295 470   59 29 24  
  « 32 « 60 « 285 460   59 29 24  
  « 60 « 160 « 275 450   59 29 24  
17GS Before 5       345 510 23 - - - -
  From 5 before 10   345 510   - 44 - 29
  « 10 « 20   335 490   - 34 -  
17Г1С Before 5       355 510 23 - - - -
  From 5 before 10   355     - 44 - 29
  « 10 « 20   345     - 39 -  
14HGS

 Before 5       345 490 22 - - - -
  From 5 before 10           39 - 29
  10                 34 -  
  1. Sv — Short-term strength limit
  2. St — Limit of proportionality (yield strength for permanent deformation)
  3. d5 — Elongation at break.
  4. KCU — Impact strength

Delivery, price

Are you interested in annealing, hardening and heat treatment of the boiler house steel? Buy boiler steel at an affordable price from the supplier Avgob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy a boiler steel at the optimal price in bulk or at retail.