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GOST 14959-79. Rolled from spring-spring carbon and alloy steel. Technical specifications

GOST 14959-79. Rolled from spring-spring carbon and alloy steel. Technical specifications

Are you interested in GOST 14959−79? Supplier Avlob offers to buy spring and spring 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.

Technical specifications

GOST 14959−79 applies to hot-rolled and forged long products with a diameter or thickness up to 250 mm, as well as rolled products calibrated and with special surface finish, designed for the manufacture of springs, springs and other parts of machines and mechanisms used in hardened and tempered condition. In terms of standards of chemical composition, the standard applies to all other types of rolled products, ingots, forgings and stamping

Composition and mechanical properties of the main steel grades

steel grade Content of basic chemical elements,%
Carbon Silicon Manganese Chromium Vanadium
65G 0.62… 0.70 0.17… 0.37 0.90… 1.20 Not more than 0.25 -
60С2А 0.58… 0.63 1.60… 2.00 0.60… 0.90 Not more than 0.30 -
50HFA 0.46… 0.54 0.17… 0.37 0.50 to 0.80 0.80… 1.10 0.10 to 0.20
60С2Г 0.55… 0.65 1.80… 2.20 0.70… 1.00 Not more than 0.30 -

Note. In steels, up to 0.40% nickel is allowed.

After heat treatment, the rolling must have the following characteristics:

Make Limit of plasticity, MPa Ultimate strength, MPa Relative extension, % Relative narrowing of the cross-section,% Hardness by Rockwell, NRC
65G 785 980 8 thirty 477 (Brinell hardness)
60С2А 1375 1570 6th 20 48… 50
50HFA 1080 1270 8 35 51… 54
60С2Г 1325 1470 6th 25 340… 360 (Brinell hardness)

Supplier Auglob offers to buy spring and spring steel in accordance with GOST 14959−79 at a bargain price. The price is the best in this segment of rental.

Assortment

The precision circle is made of steel:

  1. AO — especially high accuracy (AO1);
  2. A — high accuracy (A1, A2, A3);
  3. B — increased accuracy (B1);
  4. B is the usual accuracy (B1, B2, B3, B4, B5).

In length they make:

  1. dimensional length;
  2. a multiple of the measured length;
  3. dimensional length.

The steel circle is manufactured in length:

  1. from 2 to 6 m — from carbonaceous ordinary quality and from low-alloyed steel;
  2. from 2 to 6 m — from high-quality carbon and alloy steel;
  3. from 1,0 to 6 m — a circle of high-alloy steel.

Limit deviations along the length of rolled metric and multiple dimensional length should not exceed:

  1. +30 mm — with a length of up to 4 m inclusive;
  2. +50 mm — for lengths exceeding 4 m up to 6 m inclusive.
  3. +70 mm — if the length is more than 6 m.

Delivery, price

Are you interested in GOST 14959−79? Buy spring and spring 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 spring and spring steel at the optimal price in bulk or at retail.