Chemical Composition of GPH Rebar:

Name of Elements

Grade-wise percent constituents

 

GPH TMT 500W

GPH G60-400

GPH G40-300W

Carbon(C)

0.15-0.25

0.20-0.33

0.15-0.25

Manganese (Mn)

0.75-0.90

1.00-1.65

0.75-0.90

Silicon (Si)

0.25 Max

0.25 Max

0.25 Max

Sulfur(S)

0.05Max

0.05 Max

0.05Max

Phosphorus (P)

0.04 Max

0.05 Max

0.04 Max

Copper(Cu)

0.20 Max

0.25 Max

0.20 Max

All other tramp elements are kept near traces.

The above chemical composition confirms the following AISI-SAE Standards:

AISI-SAE Standard Carbon Steel Composition(Grade 60-400)

AISI-SAE Number

UNS Number

Composition

C

Mn

P(max)**

S(max)**

Nonresulfurized Grades — Over 1 per cent Mn

1522

G15220

0.18–0.24

1.10–1.40

0.040

0.050

1524

G15240

0.19–0.25

1.35–1.65

0.040

0.050

1526

G15260

0.22–0.29

1.10–1.40

0.040

0.050

1527

G15270

0.22–0.29

1.20–1.50

0.040

0.050



AISI-SAE Standard Carbon Steels Composition(Grade 40-300 & TMT 72.5-500)

AISI-SAE Number

UNS Number

Composition

C

Mn

P(max)

S(max)

Nonresulfurized Grades — 1 per cent mn (max)

1018

G10180

0.15–0.20

0.60–0.90

0.04

0.05

1019

G10190

0.15–0.20

0.70–1.00

0.04

0.05

1021

G10210

0.18–0.23

0.60–0.90

0.04

0.05

1022

G10220

0.18–0.23

0.70–1.00

0.04

0.05

Standards of Chemical Composition: AISI/SAE Identification Number Chart:

The following is a simplified general AISI/SAE Steel Identification Number Chart. The values on the left-most column are the approximate material content amounts.

Carbon Steels

10XX

Plain carbon, Mn 1.00% max

11XX

Resulfurized free machining

12XX

Resulfurized - Rephosphorized free machining

15XX

Plain carbon, Mn 1.00-1.65%

Manganese Steel

13XX

Mn 1.75%

Nickel Steels

23XX

Ni 3.50%

25XX

Ni 5.00%

Nickel-Chromium Steels

31XX

Ni 1.25%, Cr .65-.80%

32XX

Ni 1.75%, Cr 1.07%

33XX

Ni 3.50%, Cr 1.50-1.57%

34XX

Ni 3.00%, Cr .77%

Molybdenum Steels

40XX

Mo .20-.25%

44XX

Mo .40-.52%

Chromium-Molybdenum Steels

41XX

Cr .50-.95%, Mo .12-.30%

Nickel-Chromium-Molybdenum Steels

43XX

Ni 1.82%, Cr .50-.80%, Mo .25%

47XX

Ni 1.05%, Cr .45%, Mo .20-.35%

Nickel-Molybdenum Steels

46XX

Ni .85-1.82%, Mo .20-.25%

48XX

Ni 3.50%, Mo .25%

Chromium steels

50XX

Cr .27-.65%

51XX

Cr .80-1.05%

50XXX

Cr .50%, C 1.00% min

51XXX

Cr 1.02%, C 1.00% min

52XXX

Cr 1.45%, C 1.00% min

Chromium-vanadium steels

61XX

Cr .60-.95%, V .10-.15%

Tungsten-chromium steels

72XX

W 1.75%, Cr .75%

Nickel-chromium-molybdenum steels

81XX

Ni .30%, Cr .40%, Mo .12%

86XX

Ni .55%, Cr .50%, Mo .20%

87XX

Ni .55%, Cr .50%, Mo .25%

88XX

Ni .55%, Cr .50%, Mo .35%

Silicon-manganese steels

92XX

Si 1.40-2.00%, Mn .65-.85%, Cr 0-.65%

Nickel-chromium-molybdenum steels

93XX

Ni 3.25%, Cr 1.20%, Mo .12%

94XX

Ni .45%, Cr .40%, Mo .12%

97XX

Ni .55%, Cr .20%, Mo .20%

98XX

Ni 1.00%, Cr .80%, Mo .25%

Stainless Steels

SAE

AISI

-

Chromium–Manganese–Nickel Steels

302xx

2xx

-

Chromium–Nickel Steels

303xx

3xx

-

Chromium Steels

514xx

4xx

-

Chromium Steels

515xx

5xx

-

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