Steel Flat Stock

Just before authorizing this off we did some more study to develop just what a 'B2 Fire Ranking in conformance with DIN 4102' meant. Din 4102 is the European Category of structure products in conformance with their flammability. The Lessons vary from A1 ONE HUNDRED % non flammable to B3 Easily flammable. This is just what we located:

A1 ONE HUNDRED % fireproof (nichtbrennbar).

B1 Difficult to ignite (schwer entflammbar) intumescents as well as some luxury silicones.

14 Steel Plate 4 X 12 Flat Bar A36 2 Pieces
14 Steel Plate 4 X 12 Flat Bar A36 2 Pieces
25.50
View Details
1095 Hot Rolled Carbon Steel 18 X 2 12 Bar Knife Making Stock Billet
1095 Hot Rolled Carbon Steel 18 X 2 12 Bar Knife Making Stock Billet
17.11
View Details
12 X 2 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
12 X 2 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
14.00
View Details
Us Stock 4mm X 30mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
Us Stock 4mm X 30mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
12.13
View Details
Steel Flat Bar 1 14 X 48 In Metal Stock Fastener 18 In Thick Plain Finish
Steel Flat Bar 1 14 X 48 In Metal Stock Fastener 18 In Thick Plain Finish
11.01
View Details
14 X 3 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
14 X 3 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
7.00
View Details
Stainless Steel Flat Bar Stock 18x 1 X 6 Knife Making Craft 304
Stainless Steel Flat Bar Stock 18x 1 X 6 Knife Making Craft 304
3.97
View Details
Stainless Steel Flat Bar Stock 18 X 1 X 6 Knife Making Craft T316 1 Bar
Stainless Steel Flat Bar Stock 18 X 1 X 6 Knife Making Craft T316 1 Bar
3.29
View Details
Steel Square Bar Plate 34 X 8 X 8 Machine Stock
Steel Square Bar Plate 34 X 8 X 8 Machine Stock
18.55
View Details
Starrett Precision Ground Oil Hardening Flat Stock 54149 12 X 34 X 18
Starrett Precision Ground Oil Hardening Flat Stock 54149 12 X 34 X 18
20.00
View Details
Stainless Steel Flat Bar Stock 316x 1x 6 304 Knife Making Craft Bar
Stainless Steel Flat Bar Stock 316x 1x 6 304 Knife Making Craft Bar
5.56
View Details
O1 Tool Steel 316 X 2 12 Long Bar Knife Making Stock Billet
O1 Tool Steel 316 X 2 12 Long Bar Knife Making Stock Billet
33.50
View Details
Starrett Precision Ground Oil Hardening Flat Stock 54117 38 X 12 X 18 In
Starrett Precision Ground Oil Hardening Flat Stock 54117 38 X 12 X 18 In
10.00
View Details
O1 Tool Steel 18 X 2 12 Long Bar Knife Making Stock Billet
O1 Tool Steel 18 X 2 12 Long Bar Knife Making Stock Billet
25.83
View Details
14 Steel Plate 4 X 4 Flat Bar A36 4 Pieces
14 Steel Plate 4 X 4 Flat Bar A36 4 Pieces
19.75
View Details
5160 Hot Rolled Alloy Spring Steel 14 X 2 12 Long Bar Knife Making Stock
5160 Hot Rolled Alloy Spring Steel 14 X 2 12 Long Bar Knife Making Stock
26.22
View Details
1095 Cold Rolled Carbon Steel 332 X 2 X 115 Bar Knife Making Stock Billet
1095 Cold Rolled Carbon Steel 332 X 2 X 115 Bar Knife Making Stock Billet
14.53
View Details
1578b Badger O1 Tool Steel Oil Hardening Flat Ground Stock 18 X 1 X 18
1578b Badger O1 Tool Steel Oil Hardening Flat Ground Stock 18 X 1 X 18
19.95
View Details
1095 Cold Rolled Carbon Steel 332 X 2 X 12 Bar Knife Making Stock Billet
1095 Cold Rolled Carbon Steel 332 X 2 X 12 Bar Knife Making Stock Billet
14.72
View Details
18 X 1 14 X 18 Oil Hardening Tool Steel Flat Stock Aisi Type O1
18 X 1 14 X 18 Oil Hardening Tool Steel Flat Stock Aisi Type O1
19.26
View Details
12 X 1 12 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
12 X 1 12 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
8.50
View Details
W2 Steel Flat Bar 12 X 15 X 516 Bar Stock For Knife Making
W2 Steel Flat Bar 12 X 15 X 516 Bar Stock For Knife Making
22.00
View Details
14 X 1 Stainless Steel Flat Bar 304 Plate 6 Length Mill Stock 025
14 X 1 Stainless Steel Flat Bar 304 Plate 6 Length Mill Stock 025
12.30
View Details
18 X 1 12 X 316 Oil Hardening Tool Steel Flat Stock Aisi Type O1
18 X 1 12 X 316 Oil Hardening Tool Steel Flat Stock Aisi Type O1
29.97
View Details
38 X 12 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
38 X 12 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
3.00
View Details
Stainless Steel Flat Stock
Stainless Steel Flat Stock
10.00
View Details
O1 Tool Steel 116 X 2 12 Long Bar Knife Making Stock Billet
O1 Tool Steel 116 X 2 12 Long Bar Knife Making Stock Billet
21.34
View Details
1095 Hot Rolled Carbon Steel 14 X 25 18 Bar Knife Making Stock Billet
1095 Hot Rolled Carbon Steel 14 X 25 18 Bar Knife Making Stock Billet
41.63
View Details
12 X 2 Steel Flat Bar Metal Stock Cold Roll Finish 8 Long Mild Steel
12 X 2 Steel Flat Bar Metal Stock Cold Roll Finish 8 Long Mild Steel
7.99
View Details
H 13 Tool Steel Flat Stock Machine Shop Die 18 X 45 X 66 H13
H 13 Tool Steel Flat Stock Machine Shop Die 18 X 45 X 66 H13
51.00
View Details
316 X 58 Metal Flat Bar Mild Steel Metal Stock 60 Long 5 Ft
316 X 58 Metal Flat Bar Mild Steel Metal Stock 60 Long 5 Ft
7.25
View Details
A2 Air Hardening Tool Steel Ground Flat Stock 18 Thick X 1 14 Wide X 18 Long
A2 Air Hardening Tool Steel Ground Flat Stock 18 Thick X 1 14 Wide X 18 Long
22.95
View Details
Starrett Precision Ground Oil Hardening Flat Stock 54069 14 X 38 X 18 In
Starrett Precision Ground Oil Hardening Flat Stock 54069 14 X 38 X 18 In
8.00
View Details
440c Stainless Steel 332 X 2 X 12 Bar Knife Making Stock Billet
440c Stainless Steel 332 X 2 X 12 Bar Knife Making Stock Billet
24.84
View Details
12 X 34 Steel Flat Bar Flat Metal Stock Mild Steel 24 Long 2 Ft
12 X 34 Steel Flat Bar Flat Metal Stock Mild Steel 24 Long 2 Ft
14.25
View Details
18 X 1 X 18 Oil Hardening Tool Steel Flat Stock Aisi Type O1
18 X 1 X 18 Oil Hardening Tool Steel Flat Stock Aisi Type O1
16.80
View Details
1018 Cr Steel Flat Bar Stock Machine Tool Die Shop Plate 12 X 1 12 X 12
1018 Cr Steel Flat Bar Stock Machine Tool Die Shop Plate 12 X 1 12 X 12
8.00
View Details
34 X 2 Metal Flat Bar Mild Steel Metal Stock 12 Long 1 Ft
34 X 2 Metal Flat Bar Mild Steel Metal Stock 12 Long 1 Ft
23.50
View Details
Us Stock 2pcs 4mm X 15mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
Us Stock 2pcs 4mm X 15mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
12.70
View Details
Stainless Steel Shim Stock 010 Thick 6 Width 6 Long 010 0010 Flat Sheet
Stainless Steel Shim Stock 010 Thick 6 Width 6 Long 010 0010 Flat Sheet
34.00
View Details
Aisi 0 1 Oil Hardening Flat Stock Tool Steel 14 X 2 X 13
Aisi 0 1 Oil Hardening Flat Stock Tool Steel 14 X 2 X 13
10.00
View Details
1 X 4 Flat Steel Bar Thick Blacksmith Bench Plate Welding Bracing Target 8 Long
1 X 4 Flat Steel Bar Thick Blacksmith Bench Plate Welding Bracing Target 8 Long
21.16
View Details
Weld On Steel Flat Tab Brackets 1 X 1 12 X 18 Thick38 Hole 50 Pcs
Weld On Steel Flat Tab Brackets 1 X 1 12 X 18 Thick38 Hole 50 Pcs
25.88
View Details
Stainless Steel Flat Bar Stock 14 X 1 X 6 Ft Rectangular 304 Mill Finish
Stainless Steel Flat Bar Stock 14 X 1 X 6 Ft Rectangular 304 Mill Finish
44.97
View Details
Blue Steel Springshim Stock 0012 Thick X 250 Wide By The Foot
Blue Steel Springshim Stock 0012 Thick X 250 Wide By The Foot
3.50
View Details
Steel Bar Plate 34 X 6 X 6 Machine Stock
Steel Bar Plate 34 X 6 X 6 Machine Stock
11.20
View Details
1095 Hot Rolled Carbon Steel 18 X 15 9 Bar Knife Making Stock Billet
1095 Hot Rolled Carbon Steel 18 X 15 9 Bar Knife Making Stock Billet
13.12
View Details
Shim Stock 015 42435 10 Pcs Stainless Precision Brand 4 X 4 X 1 14 Slot
Shim Stock 015 42435 10 Pcs Stainless Precision Brand 4 X 4 X 1 14 Slot
20.00
View Details
Starrett Precision Ground Oil Hardening Flat Stock 54044 316 X 34 X 18 In
Starrett Precision Ground Oil Hardening Flat Stock 54044 316 X 34 X 18 In
8.00
View Details
A 36 Steel Flat Bar Stock Welding Machine Shop Plate Stock 34 X 3 X 10 34
A 36 Steel Flat Bar Stock Welding Machine Shop Plate Stock 34 X 3 X 10 34
12.00
View Details
14 X 1 Stainless Steel Flat Bar 304 Plate 24 Length Mill Stock 025
14 X 1 Stainless Steel Flat Bar 304 Plate 24 Length Mill Stock 025
27.84
View Details
Shim Stock Assortment Steel 1 X 6 001 002 003 004 005 0001 0002 0003
Shim Stock Assortment Steel 1 X 6 001 002 003 004 005 0001 0002 0003
34.00
View Details
1095 Hot Rolled Carbon Steel 316 X 25 18 Bar Knife Making Stock Billet
1095 Hot Rolled Carbon Steel 316 X 25 18 Bar Knife Making Stock Billet
35.40
View Details
14 X 1 14 Flat Bar Mild Steel Metal Stock Plain Finish 12 Long
14 X 1 14 Flat Bar Mild Steel Metal Stock Plain Finish 12 Long
4.50
View Details
Starrett Precision Ground Oil Hardening Flat Stock 54109 516 X 2 X 18
Starrett Precision Ground Oil Hardening Flat Stock 54109 516 X 2 X 18
35.00
View Details
716 4375 Hot Rolled Steel Sheet Plate 12x 12 Flat Bar A36
716 4375 Hot Rolled Steel Sheet Plate 12x 12 Flat Bar A36
21.00
View Details
1 X 2 Flat Steel Bar Blacksmith Bench Welding Press Plate Weight 8 Long
1 X 2 Flat Steel Bar Blacksmith Bench Welding Press Plate Weight 8 Long
10.25
View Details
12 X 1 Metal Flat Bar Flat Metal Stock Mild Steel 24 Long 2 Ft
12 X 1 Metal Flat Bar Flat Metal Stock Mild Steel 24 Long 2 Ft
10.75
View Details
H 13 Tool Steel Flat Stock Machine Shop Die 35 X 55 X 675 H13
H 13 Tool Steel Flat Stock Machine Shop Die 35 X 55 X 675 H13
119.00
View Details
1018 Cr Steel Flat Bar Stock Machine Tool Die Shop Plate 34 X 1 12 X 12
1018 Cr Steel Flat Bar Stock Machine Tool Die Shop Plate 34 X 1 12 X 12
11.00
View Details
38 X 3 Steel Flat Bar Flat Metal Stock Mild Steel 12 Long 1 Ft
38 X 3 Steel Flat Bar Flat Metal Stock Mild Steel 12 Long 1 Ft
11.75
View Details
18 X 2 Flat Steel Strips Bracing Welding Supports Brackets Projects 12 L 8
18 X 2 Flat Steel Strips Bracing Welding Supports Brackets Projects 12 L 8
17.03
View Details
18 X 14 X 14 Oil Hardening Tool Steel Flat Stock Aisi Type O1
18 X 14 X 14 Oil Hardening Tool Steel Flat Stock Aisi Type O1
21.03
View Details
12 X 1 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
12 X 1 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
6.75
View Details
14 X 58 Steel Flat Bar Metal Stock Mild Steel 24 Long 2 Ft
14 X 58 Steel Flat Bar Metal Stock Mild Steel 24 Long 2 Ft
5.50
View Details
18 X 1 X 316 Oil Hardening Tool Steel Flat Stock Aisi Type O1
18 X 1 X 316 Oil Hardening Tool Steel Flat Stock Aisi Type O1
22.22
View Details
Steel Flat Bar 1 14 X 72 In Metal Stock Fastener 18 In Thick Plain Finish
Steel Flat Bar 1 14 X 72 In Metal Stock Fastener 18 In Thick Plain Finish
15.93
View Details
3 Thickness 4140 Normalized Steel Flat Bar 3 X 425 X 2 Length
3 Thickness 4140 Normalized Steel Flat Bar 3 X 425 X 2 Length
35.99
View Details
12 X 6 X 12 Long Cr1018 Steel Flat Bar 500 X 6 Cr1018 Mill Stock
12 X 6 X 12 Long Cr1018 Steel Flat Bar 500 X 6 Cr1018 Mill Stock
42.99
View Details
Flat Washers Zinc Plated Steel Uss Inch Standard Washers Sizes 316 3
Flat Washers Zinc Plated Steel Uss Inch Standard Washers Sizes 316 3
0.00
View Details
1045 Steel Flat Bar 78 X 2 14 X 4 14 Long Machine Stock
1045 Steel Flat Bar 78 X 2 14 X 4 14 Long Machine Stock
13.75
View Details
H 13 Tool Steel Flat Stock Machine Shop Die 225 X 34 X 9 Triangle H13
H 13 Tool Steel Flat Stock Machine Shop Die 225 X 34 X 9 Triangle H13
34.00
View Details
14 Uss Flat Washers Standard Steel Zinc Plated Od 34 Qty 25 Pcs 5000 Pcs
14 Uss Flat Washers Standard Steel Zinc Plated Od 34 Qty 25 Pcs 5000 Pcs
0.00
View Details
12 X 1 14 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
12 X 1 14 Steel Flat Bar Metal Stock Mild Steel 12 Long 1 Ft
7.75
View Details
5160 Hot Rolled Alloy Spring Steel 14 X 2 27 Long Bar Knife Making Stock
5160 Hot Rolled Alloy Spring Steel 14 X 2 27 Long Bar Knife Making Stock
48.46
View Details
34 X 3 Flat Steel Bar Plate Blacksmith Welding Bracing 8 Long
34 X 3 Flat Steel Bar Plate Blacksmith Welding Bracing 8 Long
11.25
View Details
14 X 8 X 12 Long Cr1018 Steel Flat Bar 250 X 8 Cr1018 Mill Stock
14 X 8 X 12 Long Cr1018 Steel Flat Bar 250 X 8 Cr1018 Mill Stock
35.99
View Details
15 Hardy Tool 1 X 14 Solid Flat Stock Blacksmith Anvils Forging A36 Steel Bar
15 Hardy Tool 1 X 14 Solid Flat Stock Blacksmith Anvils Forging A36 Steel Bar
28.95
View Details
2 Pack 13 Gauge Steel Sheet Metal Plate 6x6 Flat Stock
2 Pack 13 Gauge Steel Sheet Metal Plate 6x6 Flat Stock
19.90
View Details
1045 Steel Flat Bar 2 X 4 X 5 12 Long Machine Stock
1045 Steel Flat Bar 2 X 4 X 5 12 Long Machine Stock
26.75
View Details
New Aisi A 2 A2 Tool Steel Ground Flat Stock 18 Thick X 1 Wide X 18 Long
New Aisi A 2 A2 Tool Steel Ground Flat Stock 18 Thick X 1 Wide X 18 Long
19.95
View Details
Us Stock 5mm X 30mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
Us Stock 5mm X 30mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
16.26
View Details
M 3 Tool Steel Flat Stock 516 X 34 X 36
M 3 Tool Steel Flat Stock 516 X 34 X 36
35.00
View Details
Spring Band Steel Strip Non Rusting 1095 Knife Blade 6375x8375x1875
Spring Band Steel Strip Non Rusting 1095 Knife Blade 6375x8375x1875
10.99
View Details
1 X 3 Flat Steel Bar Blacksmith Bench Welding Press Plate Weight 8 Long
1 X 3 Flat Steel Bar Blacksmith Bench Welding Press Plate Weight 8 Long
14.10
View Details
Us Stock 100pcs M3 3mm 304 Stainless Steel Metric Flat Washer Washers
Us Stock 100pcs M3 3mm 304 Stainless Steel Metric Flat Washer Washers
6.94
View Details
Flat Washers Hot Dip Galvanized Hdg Steel Uss Standard Washers Sizes 14 3
Flat Washers Hot Dip Galvanized Hdg Steel Uss Standard Washers Sizes 14 3
0.00
View Details
1018 Cr Steel Flat Bar Stock Machine Tool Die Shop Plate 38 X 1 12 X 12 Oal
1018 Cr Steel Flat Bar Stock Machine Tool Die Shop Plate 38 X 1 12 X 12 Oal
10.00
View Details
Steel Welding Gusset 14 X 3 X 3 Lot Of 12 Weld On
Steel Welding Gusset 14 X 3 X 3 Lot Of 12 Weld On
19.25
View Details
12 X 3 Flat Steel Bar Blacksmith Bracing Welding Strap 12 Long
12 X 3 Flat Steel Bar Blacksmith Bracing Welding Strap 12 Long
11.30
View Details
Us Stock 5mm X 40mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
Us Stock 5mm X 40mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
20.38
View Details
12 X 8 X 34 Blacksmith Steel Flat Bar
12 X 8 X 34 Blacksmith Steel Flat Bar
44.99
View Details
Us Stock 50pcs M12 12mm 304 Stainless Steel Metric Flat Washer Washers
Us Stock 50pcs M12 12mm 304 Stainless Steel Metric Flat Washer Washers
10.42
View Details
2 Pack 16 Gauge Steel Sheet Metal Plate 6x6 Flat Stock 060
2 Pack 16 Gauge Steel Sheet Metal Plate 6x6 Flat Stock 060
10.90
View Details
Steel Flat Bar 1 14 X 72 Inch Metal Stock Fastener 18 Inch Thick Plain Finish
Steel Flat Bar 1 14 X 72 Inch Metal Stock Fastener 18 Inch Thick Plain Finish
16.88
View Details
316 X 2 Steel Flat Bar Flat Metal Stock Mild Steel 48 Inch Long 4 Ft
316 X 2 Steel Flat Bar Flat Metal Stock Mild Steel 48 Inch Long 4 Ft
12.25
View Details
P20 4130 Tool Steel Flat Stock 2675 X 2805 X 4020
P20 4130 Tool Steel Flat Stock 2675 X 2805 X 4020
40.00
View Details
Shim Stock Assortment Steel 6 X 1 001 002 003 004 005 0001 0002 0003
Shim Stock Assortment Steel 6 X 1 001 002 003 004 005 0001 0002 0003
34.00
View Details
1095 Hot Rolled Carbon Steel 18 X 2 115 Bar Knife Making Stock Billet
1095 Hot Rolled Carbon Steel 18 X 2 115 Bar Knife Making Stock Billet
16.89
View Details
Steel Flat Bar 1 14 X 72 Inch Metal Stock Fastener 18 Inch Thick Plain Finish
Steel Flat Bar 1 14 X 72 Inch Metal Stock Fastener 18 Inch Thick Plain Finish
18.96
View Details
36 X 58 X 18 Oil Hardening Tool Steel Flat Stock Aisi Type O1
36 X 58 X 18 Oil Hardening Tool Steel Flat Stock Aisi Type O1
24.46
View Details
Steel Flat Bar 1 14 X 48 In Metal Stock Fastener 18 In Thick Plain Finish Sae
Steel Flat Bar 1 14 X 48 In Metal Stock Fastener 18 In Thick Plain Finish Sae
14.22
View Details
Oil Hardening Flat Stock Lot 9
Oil Hardening Flat Stock Lot 9
30.00
View Details
4140 As Rolled Alloy Steel Flat Bar 1 X 1 38 X 3 Long
4140 As Rolled Alloy Steel Flat Bar 1 X 1 38 X 3 Long
21.35
View Details
38 X 1 Steel Flat Bar Metal Stock Plain Finish 36 Long 3 Ft
38 X 1 Steel Flat Bar Metal Stock Plain Finish 36 Long 3 Ft
12.50
View Details
Zoro Select O13163168 Oil Hard Flat Stocko1316in Wx18in L
Zoro Select O13163168 Oil Hard Flat Stocko1316in Wx18in L
19.78
View Details
440c Stainless Steel 332 X 2 X 115 Bar Knife Making Stock Billet
440c Stainless Steel 332 X 2 X 115 Bar Knife Making Stock Billet
24.18
View Details
1 X 6 Flat Steel Bar Target Blacksmithing Bracing Plate Welding 12 Long
1 X 6 Flat Steel Bar Target Blacksmithing Bracing Plate Welding 12 Long
38.54
View Details
Stainless Steel Flat Bar Stock 18x 2 X 6 Knife Making Craft 304
Stainless Steel Flat Bar Stock 18x 2 X 6 Knife Making Craft 304
7.87
View Details
Starrett Oil Hardening Precision Ground Flat Stock 732 X 34 X 18
Starrett Oil Hardening Precision Ground Flat Stock 732 X 34 X 18
16.00
View Details
O1 Tool Steel 18 X 25 18 Long Bar Knife Making Stock Billet
O1 Tool Steel 18 X 25 18 Long Bar Knife Making Stock Billet
41.98
View Details
1095 Cold Rolled Carbon Steel 532 X 2 12 Bar Knife Making Stock Billet
1095 Cold Rolled Carbon Steel 532 X 2 12 Bar Knife Making Stock Billet
22.44
View Details
14 X 2 12 Steel Flat Bar Flat Metal Stock Mild Steel 12 Long
14 X 2 12 Steel Flat Bar Flat Metal Stock Mild Steel 12 Long
8.00
View Details
Us Stock 3mm X 40mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
Us Stock 3mm X 40mm X 330mm13 Inch 304 Stainless Steel Flat Bar Sheet
12.13
View Details

B2 Regular combustibility timber.

Looking for more details on Soudafoam on the http://www.soudalusa.com website we located a checklist of the recommended usages; warmth insulation, sound insulation as well as several various other usages are advised there are no remarks on fire insulation.

Credit ratings have actually consistently been important in the evaluation of contractors using for proposal as well as efficiency bonds. Today they are also a lot more important because a variety of bonding process we offer make use of the individual credit rating as a key basis for the bond authorization.