ASTM A135  steel pipe grade A  grade B  for fire fighting

ASTM A135 is one of American standard used for fire fighting.YOUFA  is one of leading  ASTM A135 steel pipe manufacturer,exporter,factory,supplier in China.

Description

ASTM A135 steel pipe manufacturer in China,ASTM A135 pipe supplier,ASTM A135 steel pipe factory in China

Characteristic:

ASTM A135(also called ASME SA-135) is the American standard,it covers two grade of erw steel pipe: ASTM A135 grade A, ASTM A135 grade B.The pipe is intended  for coverying liquid, gas, or wapor.Usually it has two wall thickness:schedule 10,schedule 40

ASTM A135 steel pipe is properly designated using the NPS size,This is the nominal pipe diameter with a scheduled wall thickness (i.e., 3 inch Schedule 40 pipe).

Youfa manufacturer a full range of ASTM A135 steel pipe  grade A,grade B in:

  • electric resistance welded,welded black and hot-dipped galvanized steel pipe
  • black, hot-dipped galvanized, painted,eoxy coated ,oiled
  • DN 15 to DN 200(NSP 1/2-NPS8;21.3mm-219mm)
  • Schedule10,Schedule 40
  • in multiple lengths, and in specific cut lengths.
  • plain,beveled,grooved,threaded

ASTM A135 steel pipe SHC10 listed for  fire sprinkler pipe

N.D. O.D. WALL THICKNESS NOMINAL WEIGHT TEST PRESSURE
inch mm mm kg/m Mp
3/4 26.8 2.11 1.28 17.24
1 33.5 2.77 2.09 17.24
1-1/4 42.2 2.77 2.7 16.55
1-1/2 48.3 2.77 3.1 14.48
2 60.3 2.77 3.93 11.72
2-1/2 73 3.05 5.26 10.34
3 88.9 3.05 6.45 8.27
3-1/2 101.6 3.05 7.41 6.89
4 114.3 3.05 8.36 6.21
5 141.3 3.4 11.58 5.86
6 168.3 3.4 13.84 5.02
8 219 4.8 15.41 4.26

ASTM A135 steel pipe SHC40 listed for fire sprinkler pipe

N.D. O.D. WALL THICKNESS NOMINAL WEIGHT TEST PRESSURE
inch mm mm kg/m Mp
1/2 21.3 2.77 1.27 17.2
3/4 26.8 2.87 1.68 17.2
1 33.5 3.38 2.5 17.2
1-1/4 42.2 3.56 3.38 17.2
1-1/2 48.3 3.68 4.05 17.2
2 60.3 3.91 5.43 16.08
2-1/2 73 5.16 8.62 17.2
3 88.9 5.49 11.28 15.3
3-1/2 101.6 5.74 13.56 14
4 114.3 6.02 16.06 13.06
5 141.3 6.55 21.76 11.5
6 168.3 7.11 28.34 10.48
8 219.1 8.18 36.9 7.96

Testing requirement for ASTM A53  grade b pipe and ASTM A53 grade a pipe:

In order to subject to certain requirement,tension, Hydrostatic Testing and Mechanical Tests (bend, and flattening tests )shall be performed

Permissible Variations for A135 steel pipe

  • The weight shall not vary more than +/-10% from that prescribed
  • The minimum wall thickness at any point shall be no more than 12.5% under the specified wall thickness
  • The outside diameter shall not exceed +/-1%

Mechnical properties for ASTM A135 steel pipe:

Yield Strength (psi) Tensile Strength (psi) Elongation %
 ASTM A135 Grade A  30,000 min 48,000 min 35% min
ASTM A135 Grade B 35,000 min 60,000 min 30% min

Chemical properties for ASTM A135 steel pipe:

Carbon % Manganese % Phosphorous % Sulfur %
 ASTM A135 Grade A 0.25 max 0.95 max 0.035 max 0.035 max
ASTM A135 Grade B 0.30 max 1.20 max 0.035 max 0.035 max
Our advantage

We,Tianjin youfa steel pipe group focus on ASTM A135 steel pipe  grade A and grade B  exporting for more than 15 years with prime quality and reasonable price,If you are searching the ASTM A135 grade B pipe,ASTM A135  grade A pipe manuacturer,supplier,factory,mill,trade Co.,ltd in China, please feel free to contact us,we will supply technical support and quote to you in 12 hours.

  1. PRODUCTION CAPACITY:59 ERW steel pipe production lines36 hot-dipped galvanized steel pipe production lines

    24 square and rectangular steel pipe production lines

    18 SSAW steel pipe production lines

    16 steel-plastic complex steel pipe production lines

    9 hot-dipped galvanized square and rectangular steel pipe production line

  2. QUALITY:

with the strict control and guarantee of the quality,we have passsed UL certificate,FM certificate

3.WHO WE ARE?

(1) China Top 500 Enterprises Industry Leading Brands.

(2) 15 years experience in manufacturing and exporting steel products since 2000.

(3) For 10 Consecutive Years of The First Production and Sales

(4) Key Project Supplier

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