YB/T 4028 Q195 Welded Steel Tube for Water Pump of Deep Well, ISO 559, Q195, Q215A, Q215B, Q235A, Q235B

YB/T 4028 Welded Steel Tube for Water Pump of Deep Well

Standard: YB/T 4028
Equivalent Standards: ISO 559

Material: Q195
Equivalent Material: 1010, St35.8, P235TR1, P235TR2

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %	Cr, %	Ni, %	Cu, %
0.07-0.13	0.17-0.37	0.35-0.65	0.025 max	0.025 max	0.15 max	0.30 max	0.25 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %
335 min	205 min	24 min

Dimensions & Tolerance

Side Length (mm)	Tolerance
Side Length (mm)	Ordinary	Advanced
SL≤30mm	±0.30mm	±0.20mm
30mm＜SL≤50mm	±0.40mm	±0.30mm
50mm＜SL≤75mm	±0.80%	±0.70%
SL>75mm	±1%	±0.80%
Wall Thickness (mm)	Tolerance
Wall Thickness (mm)	Ordinary	Advanced
WT≤1mm	±0.18mm	±0.12mm
1mm＜WT≤3mm	+15%/-10%	+12.5%/-10%
WT>3mm	+12.5%/-10%	±10%

YB/T 4028 specifies the size, outer diameter, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of welded steel pipes for water pump of deep well. YB/T 4028 is applicable to straight seam welded steel pipes for water pump of deep well and submersible electric pumps.
YB/T 4028规定了深井水泵用电焊钢管的尺寸、外径、重量、技术要求、试验方法、检验规则、包装、标志和质量证明书。YB/T 4028适用于深井水泵、潜水电泵用直缝电焊钢管。

Manufacture: tubes to GB/T 3094 shall be manufactured by seamlesss process.
Delivery Condition: tubes should be delivered under cold finished condition, with purchaser agreement, it can also be with heat treated.
Inspection & Test: chemistry composition analysis, tensile test, surface inspection and dimension check.

Keyword: GB/T 3094, Shaped Steel Tubes, Cross-section Shaped

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