Bilal Trading Company - Knowledge Base

Comparison in gauge & mm

SWG	MM
4	5.892
6	4.876
8	4.064
10	3.251
11	2.946
12	2.641
13	2.336
14	2.032
15	1.828
16	1.625
17	1.422
18	1.219
19	1.016
20	0.914
21	0.812
22	0.711
23	0.609
24	0.558
25	0.508
26	0.457
27	0.416
28	0.375
29	0.345
30	0.314
32	0.274
34	0.233
36	0.193
38	0.152
40	0.121

Conversion of British & U.S. units to Metric


Length
1 inch¹)		in	0.025 ⁴⁰	m
1 foot¹)	= 12 in	ft	0.304 ⁸⁰	m
1 yard	= 3 ft	yd	0.914 ⁴⁰	m
1 mile (statute)	= 1 760 yd		1.609 ³	km
1 nautical mile		sm	1.853	km
1 mil	10^-3 inch		25.4. 10^-3	mm
1 microinch¹)	10^-6 inch		25.4. 10^-6	mm
1 fathom	= 6ft		1.828 ⁸	m
¹) Specified by DIN 4890 for industrial usage. British and US units can be slightly different.

Area
1 square inch¹)	1	sq in	6.451 6. 10^-4	m²
1 circular inch (Brit.)	1	/4 sq in	5.067 107. 10^-4	m²
1 square foot¹)	1	sq ft	9.290 30. 10^-2	m²
1 square yard¹)	1	sq yd	0.836 127	m²
1 acre	1	1	4 046.85	m²
1 mile of land	= 640 acres	1	2.589 979	km²
¹) based on 1 inch = 25.4 mm (DIN 4890)

Volume
1 cubic inch¹)		cu in	16.387 1. 10^-6	m³
1 cubic foot¹)		cu ft	2.831 68. 10^-2	m³
1 gallon (US) ⁴)	= 4 quarts = 8 pints	gal	3.785 43.10^-3	m³
1 gallon (US) ³)		gal	4.41 . 10^-3	m³
1 gallon (Brit.) ⁴)	= 4 quarts = 8 pints	gal	4.546 09. 10^-3	m³
1 bushel (US) ³)		bu	3.523 9270. 10^-2	m³
1 bushel (Brit.) ³)	= 8 gallons	bu	3.636 868 6. 10^-2	m³
1 barrel (US) ³)			0.119 241 4	m³
1 barrel (petrol) (US) ⁴)			0.158 762 m3 or 0.163 5	m³
1 barrel (Brit.) ³)			0.163 656	m³
1 register ton ²)	= 100 cu ft		2.831 7	m³
1 Pint (Brit.) ⁴)		pt	5.682 29. 10^-4	m³
1 pint (US) ⁴)		pt	4.731 7. 10^-4	m³
1 quart (Brit.) ⁴)		qt	1.136 46. 10^-3	m³
1 quart (US) ⁴)		qt	9.463 3. 10^-4	m³
¹) based on 1 inch = 25.4 mm (DIN 4890)
²) unit of volume
³) unit of capacity for dry substances
⁴) unit of capacity for liquids

Mass
1 pound (Av.)		lb	0.453 592 37	kg
1 hundredweight (Brit.)	= 112 lb	cwt	50.802 35	kg
1 (short) hundredweight (US)	= 100 lb	cwt	45.359 24	kg
1 long (gross) ton (Brit.)	= 2 240 lb		1 016.05	kg
1 short (net) ton (US)	= 2 000 lb		907.185	kg
1 ounce (Av.)		oz	0.028 349 5	kg
1 grain		gr	0.064 80. 10^-3	kg
1 carat (metric)			0.2 . 10^-3	kg
1 pennyweight		dwt	1.555 2. 10^-3	kg
Av. = avoirdupois (commercial weight)

Inches and fractions of an inch - mm

inch	mm
1/64	0.397
1/32	0.794
3/64	1.191
1/16	1.588
5/64	1.984
3/32	2.381
7/64	2.778
1/8	3.715
9/64	3.572
5/32	3.969
11/64	4.366
3/16	4.763
13/64	5.159
7/32	5.556
15/64	5.953
1/4	6.350
17/64	6.747
9/32	7.144
19/64	7.541
5/16	7.938
21/64	8.334
11/32	8.731
23/64	9.128
3/8	9.525
25/64	9.922
13/32	10.319
27/64	10.716
7/16	11.113
29/64	11.509
15/32	11.906
31/64	12.303
1/2	12.700
33/64	13.097
17/32	13.494
35/64	13.891
9/16	14.288
37/64	14.684
19/32	15.081
39/64	15.478
5/8	15.875
41/64	16.272
21/32	16.669
43/64	17.065
11/16	17.463
45/64	17.859
23/32	18.256
47/64	18.653
3/4	19.050
4/64	19.447
25/32	19.844
51/64	20.241
13/16	20.638
53/64	21.034
27/32	21.431
55/64	21.828
7/8	22.225
57/64	22.621
2/32	23.019
5/64	23.416
15/16	23.813
61/64	24.209
31/32	24.606
63/64	25.003
1	25.400

Weight table for sheet and plate

Thickness (mm)	sq ft
0.500	0.365	gm
0.600	0.438	gm
0.700	0.512	gm
0.800	0.585	gm
0.900	0.657	gm
1.000	0.730	gm
1.200	0.876	gm
1.250	0.913	gm
1.500	1.100	kg
1.750	1.080	kg
1.800	1.320	kg
2.000	1.460	kg
2.200	1.610	kg
2.250	1.650	kg
2.500	1.830	kg
2.750	2.000	kg
2.800	2.050	kg
3.000	2.190	kg
3.500	2.560	kg
4.000	2.920	kg
4.500	3.280	kg
5.000	3.650	kg
5.500	4.010	kg
6.000	4.380	kg
6.500	4.740	kg
7.000	5.110	kg
7.500	5.470	kg
8.000	5.840	kg
9.000	6.570	kg
10.000	7.300	kg
11.000	8.050	kg
12.000	8.760	kg
13.000	9.530	kg
14.000	10.220	kg
15.000	10.950	kg
16.000	11.680	kg
20.000	14.600	kg
25.000	18.250	kg
30.000	22.000	kg
32.000	23.300	kg
35.000	25.500	kg
40.000	29.200	kg
45.000	32.900	kg
50.000	36.500	kg
60.000	44.000	kg
65.000	47.500	kg
70.000	51.000	kg
75.000	55.000	kg
80.000	59.000	kg
90.000	66.000	kg
100.000	73.000	kg
125.000	91.500	kg

Heat treatment

Grade	Hot Forming temperature			Hardening temperature			Quenchant	Obtainable Hardness Rockwell (C)	Tempering temperature
Grade	(C)			(C)			Quenchant	Obtainable Hardness Rockwell (C)	100 C	200 C	300 C	400 C
K-100	1000	-	1050	930	-	980	Oil, Hot bath 500-550c	64	63	62	59	57
K-105	1000	-	1059	1000	-	1050	Oil, Air or Hot bath 500-550c	63	63	61	58	58
H-13	1100	-	900	1020	-	1050	Oil, Air or Hot bath 500-550c	54	53	52	52	54
EN-31	1050	-	800	830	-	860	Oil or Hot bath 180-220c	64	64	61	56	50
0-1	1050	-	850	780	-	820	Oil or Hot bath 180-220c	64	64	62	57	53
2083	1100	-	1050	1000	-	1050	Oil or Salt bath 500-550c	56	56	55	52	51
P-20	1050	-	850	840	-	870	Oil or Salt bath 180-220c	51	51	50	48	46
1045	1050	-	800	800	-	830	Water	57	57	54	49	42
4140	1050	-	850	830	-	860	Oil	54	54	53	52	52
S-1	1050	-	850	870	-	900	Oil Hot bath 180-220c	60	60	58	56	52
1060	1050	-	800	800 770	--	830 800	Oil Water	58	58	55	48	44

Survey of grades

Product Category	Technical Name	Product Name	Product Description	Usage of the Product
Special Steel	Thyrodur 2080	D-3	High Carbon High Chromium Cold Work Tool Steel	Steel for cutting tool dies & punches blanking and punches tools wood working, Stone pressing deep drawing and extrusion, Shear Blades, Thread Rolling and plastic mould dies.
	Thyrodur 2080	K-100	High Carbon High Chromium Cold Work Tool Steel
	Thyrodur 2379	D-2	High Carbon High Chromium Wear Resistance, Toughness Cold Work Tool Steel	Steel for cutting tool dies & punches blanking and thread rolling dies, stamping tools for sheet up to 6mm, blanking dies up to 12mm, circular shear blades and highly wear resistant plastic moulds
	Thyrodur 2379	K-105
	Thyrodur 2510	0-1	Oil Hardening Cold Work Tool Steel	Steel for Pharmaceutical punches, machine knives, gauges, plastic mould, blanking and stamping dies, shear blades
	Thyrodur 2510	K-460	Oil Hardening Cold Work Tool Steel
	Thyrotherm 2344	H-13	High Hot Tensile, Wear Resistance, Toughness Hot Work Tool Steel	Pressure die casting, metal extrusion, forging dies, moulds good polish, worms & cylinder for the processing of plastics
	Thyrotherm 2344	W-302
	Thyroplast	2083	Corrosion Resistance Plastic Mould Steel	Moulds for processing plastic with corrosive action
	Thyrapid 3343	M2	High Speed Tool Steel	For all metal cutting tool for roughing or finishing, such as twist drills, milling cutters of all types, taps, cutting tools, reamers, chasers, shaping tools and wood working tools
	Thyrodur 2550	SI	Shock resistance Tool Steel	Steel for Pharmaceutical Punches, blanking dies for cutting sheet metals up to 12mm thickness
	Silver Steel		Tool Steel	For ejector & other allied pins
	AISI	304	Stainless Steel	General engineering
Alloy Steel	Thyrodur 2067	EN-31	Oil Hardening Cold Work Bearing, Alloy Steel	Steel for bearing, pharmaceutical punches, guide pillar & bushes for dies & moulds low strength cutting dies
	Thyroplast 2311	P-20	Light Hardened Plastic Mould Steel	Plastic moulds for good polishing and pressure casting dies
	AISI	4140	High Tensile Alloy Steel	High Tensile bolts gears and crank shaft
	AISI	8620	Case Hardening Alloy Steel	Components with large cross sections requiring high toughness and core strength such as gears, crank shafts and heavy duty for gear air craft and truck construction & mechanical engineering
Carbon Steel	Thyrodur 1730	AISI 1045	Water Hardening Carbon Steel	Low tensile steel for automotive and general engineering, also used in mould frames
Carbon Steel	Thyrordur 1740	1060	Water Hardening High Carbon Steel	Steel for general engineering and for moulds