CHEMICAL ANALYSIS

SPECTROMETER

Name of ElementsGrade-wise percent constituents  
SCRM 500W TMTSCRM G400SCRM G40
Carbon(C)0.18-0.220.28-0.380.20-0.25
Manganese (Mn)0.70-0.741.00-1.350.75-0.90
Silicon (Si)0.25 Max0.25 Max0.25 Max
Sulfur(S)0.04Max0.04Max0.04Max
Phosphorus (P)0.04 Max0.04 Max0.04 Max
Copper(Cu)0.10 Max0.1Max0.10 Max

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

   AISI-SAE Standard Carbon Steel Composition(Grade 60-400)  
AISI-SAE NumberUNS NumberCompositionCompositionCompositionComposition
C Mn P(max)**S(max)**
Nonresulfurized Grades — Over 1 per cent MnNonresulfurized Grades — Over 1 per cent MnNonresulfurized Grades — Over 1 per cent MnNonresulfurized Grades — Over 1 per cent MnNonresulfurized Grades — Over 1 per cent MnNonresulfurized Grades — Over 1 per cent Mn
1522G15220 0.18–0.24 1.10–1.40 0.040 0.050
1524G15240 0.19–0.25 1.35–1.65 0.040 0.050
1526G15260 0.22–0.29 1.10–1.40 0.040 0.050
1527G15270 0.22–0.29 1.20–1.50 0.040 0.050
  AISI-SAE Standard Carbon Steel Composition(Grade 40-300 & TMT 72.5-500)   
AISI-SAE NumberUNS NumberCompositionCompositionCompositionComposition
C Mn P(max)**S(max)**
Non-resulfurized Grades — 1 per cent mn (max)
1018G10180 0.15–0.20 0.60–0.90 0.040.05
1019G101900.15–0.20 0.70–1.00 0.040.05
1021G102100.18–0.23 0.60–0.90 0.040.05
1022G10220 0.18–0.23 0.70–1.00 0.040.05

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 Steels10XXPlain carbon, Mn 1.00% max
11XXResulfurized free machining
12XXResulfurized - Rephosphorized free machining
15XXPlain carbon, Mn 1.00-1.65%
Manganese Steel13XXMn 1.75%
Nickel Steels23XXNi 3.50%
25XXNi 5.00%
Nickel-Chromium Steels31XXNi 1.25%, Cr .65-.80%
32XXNi 1.75%, Cr 1.07%
33XXNi 3.50%, Cr 1.50-1.57%
34XXNi 3.00%, Cr .77%
Molybdenum Steels40XXMo .20-.25%
44XXMo .40-.52%
Chromium-Molybdenum Steels41XXCr .50-.95%, Mo .12-.30%
Nickel-Chromium-Molybdenum Steels43XXNi 1.82%, Cr .50-.80%, Mo .25%
47XXNi 1.05%, Cr .45%, Mo .20-.35%
Nickel-Molybdenum Steels46XXNi .85-1.82%, Mo .20-.25%
48XXNi 3.50%, Mo .25%
Chromium steels50XXCr .27-.65%
51XXCr .80-1.05%
50XXXCr .50%, C 1.00% min
51XXXCr 1.02%, C 1.00% min
52XXXCr 1.45%, C 1.00% min
Chromium-vanadium steels61XXCr .60-.95%, V .10-.15%
Tungsten-chromium steels72XXW 1.75%, Cr .75%
Nickel-chromium-molybdenum steels81XXNi .30%, Cr .40%, Mo .12%
86XXNi .55%, Cr .50%, Mo .20%
87XXNi .55%, Cr .50%, Mo .25%
88XXNi .55%, Cr .50%, Mo .35%
Silicon-manganese steels92XXSi 1.40-2.00%, Mn .65-.85%, Cr 0-.65%
93XXNi 3.25%, Cr 1.20%, Mo .12%
94XXNi .45%, Cr .40%, Mo .12%
97XXNi .55%, Cr .20%, Mo .20%
98XXNi 1.00%, Cr .80%, Mo .25%
Stainless SteelsSAEAISI
Chromium–Manganese–Nickel Steels302xx2xx
Chromium–Nickel Steels303xx3xx
Chromium Steels514xx4xx
Chromium Steels515xx5xx