Delivery Time:25~35days
Certification:ISO9001 14001 BV TUV PED DNV etc

ASTM A178 Weld Seamless Steel Tubes BKS BKW with Plain ends , GrA GrC GrD Boiler Steel Tube 6m - 25m

Quick Detail:

Standards: ASTM A178 (ASME SA178)

Grade: Grade A Grade C Grade D.

Size: (mm)

OD: 15.88mm to 114.3mm;

WT: 1.5mm to 6.0 mm;

Length: 6 m ~ 25m

Description:

Product name: ASTM A178/A178M

Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes

Standard executived: ASTM  A178 A178M, ASTM DIN JIS or GB standard.

Grade: Grade A, Grade C, Grade D.

Outside diameter:15.88mm~114.3mm

Wall Thickness:1.5mm~6.0mm

Length:6m-24m,also can be manufactured according to customers\' requirements

Type: Electric-Resistance-Welded Carbon Steel (ERW)

Ends:Plain ends or bevel ends 

Delivery Conditions: BK,BKS,BKW,NBK,GBK( As drawn, quenched and tempered, normalized, annealed, stress-relieved)As different requirements,It including pickling,etc. As per Standard.

Coating for protection:black painting,anti-rust oiled or varnish,also can be required according to customers\' requirements

Factory test and other terms:

1. Hydrostatic or Nondestructive Electric Test

2. Heat Treatment: according to Standard
3. Surface Condition:According to Standard.
4. Grain Size:According to standard
5. Sampling:flattening,flaring,grain size,Marking

6. we provide bevel end,plastic cap, varnish coating, oiled or black painted to prevent rustand other packing 

service.

Applications:

ASTM A178 tubes are a kind of frequently-used tubes in our life,they are mainly used in manufacturing heating pipelines,containers,coal-saving devices,superheaters,arch tube,reheater tube,airway tube etc.

Chemical Requirements:

	Composition,%
Element	Grade A, Low-Carbon Steel	Grade C, Medium-Carbon Steel	Grade D Carbon-Manganese Steel
Carbon Managanese Phosphorus,max Sulfur,max Silicon	0.06-0.18 0.27-0.63 0.035 0.035 …	0.35max 0.08max 0.035 0.035 …	0.27max 1.00-1.50 0.030 0.015 0.01 min

Mechanical Property:

Grade C & Grade D tubes shall conform to the requirements -tensile properties prescribed below:

TensileRequirements
	GradeC	GradeD
Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,% For longitudinal strip tests a deduction for Each1⁄32-in[0.8mm]decreaseinwallthicknessbelow5⁄16in.[8mm] From the basic minimum elongation of the following percentage points shall be made	60[415] 37[255] 30 1.50A	70[485] 40[275] 30 1.50A

Grade A
Tensilestrength,min,ksi[MPa] Yieldstrength,min,ksi[MPa] Elongationin2in.or50mm,min,%	47[325] 26[180] 35

Outside diameter and Wall ThicknessTolerance:

Outside Diameter tol	Wall thickness tol
OD < 50	±0.05mm	S < 4mm	±12.5%