ASTM A515 Grade 60, 65 and 70 Steel Plate


ASTM A515 standard is mainly used for carbon-silicon steel plates for medium and high temperature welding boilers and other pressure vessels. 


It covers three grades ranged by different strength as follows:

Grade U.S. [Sl]

Tensile Strength, ksi [MPa]

60 [415]

60-80 [415-550]

65 [450]

65-85 [450-585]

70 [485]

70-90 [485-620]

The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanical property requirements; however, current practice normally limits the maximum thickness of plates furnished under this specification as follows:

Grade U.S. [Sl]

Maximum Thickness, in. [mm]

60 [415]

8 [200]

65 [450]

8 [200]

70 [485]

8 [200]

For plates produced from coil and finished without heat treatment or with stress relieving only, the additional requirements including test report shall comply with Specification A20/A20M.

Reference Documents

ASTM Standard:

  • A20/A20M: Specification for General Requirements for Steel Plates for pressure Vessels
  • A435/A435:  Ultrasonic Examination Specification for Straight-Beam  of Steel Plates
  • A577/A577M: For Ultrasonic Angle-Beam Examination of Steel Plates
  • A578/A578M: For Straight-Beam Ultrasonic Examination of Rolles Steel Plates for Special Applications

General Requirements and Ordering Information

The plates shall confirm to ASTM A20/A20M.

  • Testing and retesting methods, procedures;
  • Permissible tolerances in dimensions and mass, quality;
  • Repair of defects;
  • Marking, loading and ordering information;
  • Coils are excluded from this specifcation in case cutted to the plates form.

Material and Manufacture

The steel shall be killed and made to a coarse austenitic grain size practice.

Heat Treatment

ASTM A515 plates thickness in 50 mm [2 inch] thickness and under are normally supplied with as-rolled condition, unless it is ordered as requested.

Plates over 50 mm [2 in] in thickness shall be normalized.

Chemical Composition

Chemical Requirements

Elements

Composition, %

Grade 60 [Grade 415]

Grade 65 [Grade 450]

Grade 70 [Grade 485]

Carbon, max: ​A,B

1 in. [25 mm] and under

0.24

0.28

0.31

Over 1 to 2 in. [25 to 50 mm], incl

0.27

0.31

0.33

Over 2 to 4 in. [50 to 100 mm], incl

0.29

0.33

0.35

Over 4 to 8 in, [100 to 200], incl

0.31

0.33

0.35

Over 8 in. [200 mm]

0.31

0.33

0.35

Manganese, B max

Heat analysis

0.90

0.90

1.2

Product analysis

0.98

0.98

1.3

Phosphorus, max ​A

0.025

0.025

0.025

Sulfur, max A

0.025

0.025

0.02

Silicon:

Heat analysis

0.15-0.40

0.15-0.40

0.15-0.40

Product analysis

0.13-0.45

0.13-0.45

0.13-0.45

A  Applies to both heat and product analyses.

B  For each reduction of 0.01 percentage point below the specified maximum for carbon, an increase of 0.06 percentage point above the specified maximum for manganese is permitted, up to a maximum of 1.5% by heat analysis and 1.6% by product analysis.

Mechanical Properties

Tensile Requirements


Grade

60 [415]

65 [450]

70 [485]

Tensile strength, ksi [MPa]

60-80 [415-550]

65-85 [450-585]

70-90 [485-620]

Yield strength, min, ksi [MPa]

32 [220]

35 [240]

38 [260]

Elongation in 8 in. [200 mm], min, % ​A

21

19

17

Elongation in 2 in. [50 mm], min, % A

25

23

21

 A See Specification A20/A20M for elongation adjustment.

Our Supply Range:

Description: Carbon Steel ASTM A515 Grade 60, 65, 70
Manufacturing Types: Hot Rolled
Thickness: 2mm to 150 mm
Width: 0.6m to 3m
Length: 6m, 12m, customized
Surface: Natural, Painted
Packing: Standard sea packing, bundled with streel strip.

Related Products:


ASTM A283 Grade C, D Plates
ASTM A516 Grade 70, 65, 60 Steel Plate
ASTM A285 Grade A, B, C Plate
ASTM A537 Class 1, 2 Plates
ASTM A572 Grade 50, 60 Steel Plates
AH36, DH36, EH36 Shipbuiding Steel Plates
Carbon Steel Plate
304 Stainless Steel Plate